TIPS & TRICKS BLOG

Server Security - Secure Your Website using. Htaccess file

2020-05-11T00:25:00.000+05:30

What is .htaccess file

.htaccess files provide a way to make configuration on a per-directory basis. In the .htaccess file, we provide directives to apply a configuration.

When to use .htaccess

Generally, this file should be used when you have no access to your server configuration file (httpd.conf).

The best example would be shared hosting providers where you don’t get root access to make changes in httpd.conf file. In such scenarios .htaccess plays a very important role.

In shared hosting, we make .htaccess files to secure our websites. We create this file on each directory to secure it from hackers or attackers.

When to avoid .htaccess file

We should not use this if we have access to our main configuration file.

There are two main reasons to avoid the use of .htaccess file.

The first of these is performance. When AllowOverride is set to allow the use of .htaccess files, httpd will look in every directory for .htaccess files. Thus, permitting .htaccess files cause a performance hit.
The Other reason is .htaccess file is loaded every time a document is requested.

One should go with .htaccess file only when there is no other option left.

How to create .htaccess file

Step 1: Go inside the root directory of your website. And then create an empty file with the extension .htaccess

So now website folders are looking like this

If you haven’t read my previous server security article then please check out this

How to secure the server using .htaccess

Hide Server Details On Page Footer

First, we will hide our server details on footer which gets visible when error pages get displayed. To do this I will add the ServerSignature directive and set its value to Off. The ServerSignature will hide the server details on the footer.

Thus, we will add the below line then save the file and restart the server.

ServerSignature Off

Hide Directory Listing

When there is no default file is available in the directory which is generally index.html or index.php then the server gets confused which file to show and it displays all the files and folders. This is quite dangerous because if an attacker finds this then they can misuse the data.

when no default file is available it displays contents like this

In order to hide the content, we will add the below line save the file, and restart the server.

Options -Indexes

Directory is no longer visible

In this article, we have seen the other way of securing our website when we do not have access to the server main configuration. I hope you have learned something new with this article.

Server Security - Hide PHP Version

2020-05-08T22:30:00.000+05:30

The PHP Configuration by default shows the PHP version in HTTP server header X-Powered-By to display the version installed on the server.

But for security reasons, it is generally recommended to hide the version info from attackers or hackers.

Sometimes versions has some vulnerabilities which help the attackers to find loop holes and gain access to your system. If the attacker knows the PHP version then it would be easier for them to exploit and find security holes.

Therefore in this article “Server Security – Hide PHP Version” I will be explaining how to hide PHP Version from the response header.

Suggested Read: Secure Apache Web Server

To hide the version we need to open php.ini file in the file editor.

expose_php = On

expose_php = Off

You may find php.ini on the following locations
Debian/Ubuntu – /etc/php/7.0/cli/php.ini
CentOS – /etc/php.ini

Now locate expose_php and sets its value to Off

expose_php = off

Save the file and exit. Afterwards restart the server

$ sudo service httpd restart

$ sudo service apache2 restart

If you have any questions related to this article then leave your comments I will try to help you.

Server Security - Disable Directory Listing

2020-05-08T21:05:00.000+05:30

Directory Listing

Directory Listing is by default enabled in an apache server. This happens when there is no index.html file (default) available in the directory.

If there is no index file available in the directory then doesn’t understand which file to display so it displays all the files and folders in the directory.

Please see the below screenshot

The above image index file is the default file that is under the website folder. So when I will access my localhost with the following address – localhost/website1 or 192.168.1.2/website1 then it shows the following page.

It is actually showing the website because Apache knows exactly which file to display i.e. index.html

But in case I have renamed the index.html file to index1.html then let’s see what happens. So this time when I access my website1 folder again then it will show all the files and folders inside the website1 folder.

Files & Folders List

Prevention

In order to prevent this, you need to disable directory listing in httpd.conf file. Open httpd.conf file and locate <Directory “var/www/html”>

It will look like this

<Directory "R:/bitnami/apache2/htdocs">    #    # Possible values for the Options directive are "None", "All",    # or any combination of:    #   Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews    #    # Note that "MultiViews" must be named *explicitly* --- "Options All"    # doesn't give it to you.    #    # The Options directive is both complicated and important.  Please see    # http://httpd.apache.org/docs/2.4/mod/core.html#options    # for more information.    #    Options Indexes FollowSymLinks    #    # AllowOverride controls what directives may be placed in .htaccess files.    # It can be "All", "None", or any combination of the keywords:    #   AllowOverride FileInfo AuthConfig Limit    #    #AllowOverride None    #    # Controls who can get stuff from this server.    #    Require all granted</Directory>

To disable the Directory listing add “-” sign
Options Indexes FollowSymLinks

Result:
Options -Indexes -FollowSymLinks

<Directory "R:/bitnami/apache2/htdocs">    #    # Possible values for the Options directive are "None", "All",    # or any combination of:    #   Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews    #    # Note that "MultiViews" must be named *explicitly* --- "Options All"    # doesn't give it to you.    #    # The Options directive is both complicated and important.  Please see    # http://httpd.apache.org/docs/2.4/mod/core.html#options    # for more information.    #    Options -Indexes -FollowSymLinks    #    # AllowOverride controls what directives may be placed in .htaccess files.    # It can be "All", "None", or any combination of the keywords:    #   AllowOverride FileInfo AuthConfig Limit    #    #AllowOverride None    #    # Controls who can get stuff from this server.    #    Require all granted</Directory>

Now save the file and restart the server and try to access the folder. This time you will get forbidden message with 403 that means access is denied to see this directory

Forbidden 403 Error Code

Server Security - Apache Web Server Hardening

2020-05-08T00:04:00.000+05:30

Whenever any request is made from client to server then it sends some headers from server to client or vice versa. So when we receive server response we get some headers that give some extra information about the server.

This information or headers sometimes becomes vulnerable for hackers to break your server and get into it. In order to stop unauthorized access we secure our server.

So in this article “Server Security – Apache Web Server Hardening” I will secure the apache server by removing the server details from response headers. This comes under the Banner Grabbing Attack.

In the Banner Grabbing method, Hacker tries to identify the target system OS or server name and version to penetrate into the system.

To understand this look at the image below.

Server Details

If you will look at the image you will find out, In server response headers we are actually getting the lots of details.

We are getting the following items:

1. Server Name and Version (Apache & 2.4.43)
2. OS Name (Win64)
3. Web Language Name and Version (PHP & 7.3.17 )

The above information is big enough to carry out attacks on your server.

Prevention:

So in order to prevent this attack the best way is to remove this sensitive information from response headers. To do this you have to make changes in httpd.conf file. This file basically the configuration file of your server.

You may find httpd.conf file on following location
Ubuntu – /etc/apache2
Cent OS – /etc/httpd/conf
Windows – wamp/apache2/conf/

Steps:

Open httpd.conf file
Then search for “ServerTokens” and set its value to Prod. If it does not exist then add it at the end of the file.
Save the file.
Restart the server.

Final Result

Note: In an earlier Apache version before 2.0.44, you have to set the “ServerSignature” value to On in order to achieve the same.

Version < 2.0.44

ServerSignature Off
ServerTokens Prod

Version > 2.0.44

ServerTokens Prod

Server Tokens Directive

Server Token has 5 Possible values

ServerTokens Prod[uctOnly]

Server sends (e.g.): Server: Apache

ServerTokens Major

Server sends (e.g.): Server: Apache/2

ServerTokens Minor

Server sends (e.g.): Server: Apache/2.0

ServerTokens Min[imal]

Server sends (e.g.): Server: Apache/2.0.41

ServerTokens OS

Server sends (e.g.): Server: Apache/2.0.41 (Unix)

ServerTokens Full (or not specified)

Server sends (e.g.): Server: Apache/2.0.41 (Unix) PHP/4.2.2 MyMod/1.2

Server Signature Directive

The ServerSignature appears on the bottom of pages generated by apache such as 404 pages, directory listings, etc.

Now after version, 2.0.44 ServerToken directive can control both

Suggested Read: Play Playstation 3 Games on PC

Android - Create Force Update App Module in 30 minutes

2020-05-05T19:22:00.000+05:30

In the article “Android – Create Force Update App Module in 30 minutes“. I will be using the firebase remote config for the app force update module.

First, navigate to Firebase and login with your Google account. Once signing will be done you will be able to see Go to Console on the right top corner of the page.

Click on Go to Console

After entering into the console you will have to create a new project. Click on the Add Project button.

Now on the next screen, you have to enter the project name and click on Continue to move further.

On the next screen, You will be asked to enable google analytics on your project it is by default enable so just click on continue to move further.

Click on continue

Then on the next screen, you will be asked to select google account for google analytics. Select default account for Firebase if you don’t have already created an account. Otherwise, in the drop-down you will see your other account. For this example, I am using the default Firebase account.

Click on Create Project

After this screen you will be redirected to another screen

Then click on continue

Once your project has been created. Then click on Add App and then you will get a new screen to register your APP.

Register App

The above steps are self-explanatory so I am not getting into deep. At last, you will get google-services.json file that you need to place on your project’s app root folder.

To set up the remote config app environment for this app. Please check-out the following tutorial.

 // To setup firebase related configurations    private void setup()    {        config = FirebaseRemoteConfig.getInstance();        FirebaseRemoteConfigSettings settings = new FirebaseRemoteConfigSettings.Builder().setMinimumFetchIntervalInSeconds(60).                build();        config.setConfigSettingsAsync(settings);        // Setting Defaults for remote config        config.setDefaultsAsync(R.xml.remote_config_defaults);    }

In the above code, I am setting up the remote configuration.

This includes following -:

Initializing FirebaseRemoteConfig Object
Setting MinimumFetchInterval time
Applying those settings to for remote config using setConfigSettingsAsync
Then setting defaults XML file for using setDefaultsAsync

The method setMinimumFetchIntervalInSeconds is very important which is used to set the time for fetching the remote changes. In this example, I am setting it to 60 seconds. It depends on you what interval time you want to give as per your app requirement you can increase or decrease time.

In remote config, we create an XML file for setting the default value. This can be done in two ways.

1. Programmatically by using Map.
2. Using the XML file in the resource folder.

For the sake of simplicity, I am using an XML file

remote_config_defaults.xml

<?xml version="1.0" encoding="utf-8"?><defaultsMap>    <entry>        <key>version</key>        <value></value>    </entry>    <entry>        <key>release_notes</key>        <value></value>    </entry></defaultsMap>

This is how you declare the default values. In this example, I am not using any values as default values.

private void checkVersion()    {          // setup callback to fetch and activate remote configurations        config.fetchAndActivate().addOnCompleteListener(MainActivity.this,         new OnCompleteListener<Boolean>() {            @Override            public void onComplete(@NonNull Task<Boolean> task) {                if(task.isSuccessful())                {                    // If task is successful then get name and version                    String version = config.getString("version");                    String release_notes =                     config.getString("release_notes");                    Log.d(getPackageName(), "Version: " + version);                    Log.d(getPackageName(), "Whats New: " + release_notes);                    // Display Force update dialog                    displayAppUpdateDialog(version, release_notes);                }                else                {                    // If fetch failed then show a toast message                    Toast.makeText(MainActivity.this, "Fetch Failed",                     Toast.LENGTH_SHORT).show();                }            }    });    }

The above code doing following things:

Calling fetchAndActivate() method and then checking the result.
If the Above request is successful then checking it with isSuccessful() method.
Then fetching the values using getString() method by passing keys (the key that we mentioned in an XML file and calling displayAppUpdateDialog to show a dialog.
We have also added else condition to notify the user in case if the request failed using toast message

Now navigate to remote config comes under Grow section. And click on Add Parameter to create remote configurations. You will get a dialog that contains Parameter Key where you will enter your key which you have specified in your remote_config_defaults.xml file.

The second thing is the Default Value. Either you can specify any string here (text) or leave it as empty. For this example, I am leaving it as an empty string as the default value.

Add value for condition

Now you have to enter your new value for your key. To do this click on Add value for condition and a new dialog appears on the screen.

Here you will have to enter the name of your app. It could be anything.

Next, click on Applies If and select App from the dropdown dialog and then select the app from the right side dropdown.

Define a new condition

Click on Create Condition

Once we have created the conditions all you need to do is run the application and you should see the dialog with default values.

Go back to the console and click on the version key and update its value to v1.9 (example) and click on update to close the dialog.

Click on update

Now click on publish changes and run your app. You should see the result.

Click on Publish Changes

AndroidManifest.xml

 <uses-permission android:name="android.permission.INTERNET" />

MainActivity.java

package com.tuts.forceupdateapp;import androidx.annotation.NonNull;import androidx.appcompat.app.AlertDialog;import androidx.appcompat.app.AppCompatActivity;import android.content.DialogInterface;import android.os.Bundle;import android.util.Log;import android.widget.Toast;import com.google.android.gms.tasks.OnCompleteListener;import com.google.android.gms.tasks.OnFailureListener;import com.google.android.gms.tasks.OnSuccessListener;import com.google.android.gms.tasks.Task;import com.google.firebase.remoteconfig.FirebaseRemoteConfig;import com.google.firebase.remoteconfig.FirebaseRemoteConfigSettings;import java.io.IOException;public class MainActivity extends AppCompatActivity {   private FirebaseRemoteConfig config;   @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);           setup();        checkVersion();    }   // To setup firebase related configurations    private void setup()    {        config = FirebaseRemoteConfig.getInstance();        FirebaseRemoteConfigSettings settings = new         FirebaseRemoteConfigSettings.Builder()        .setMinimumFetchIntervalInSeconds(60)        .build();        config.setConfigSettingsAsync(settings);        // Setting Defaults for remote config        config.setDefaultsAsync(R.xml.remote_config_defaults);    }    private void checkVersion()    {         // setup callback to fetch and activate remote configurations        config.fetchAndActivate().addOnCompleteListener(MainActivity.this,         new OnCompleteListener<Boolean>() {            @Override            public void onComplete(@NonNull Task<Boolean> task) {                if(task.isSuccessful())                {                    // If task is successful then get name and version                    String version = config.getString("version");                    String release_notes =                     config.getString("release_notes");                    Log.d(getPackageName(), "Version: " + version);                    Log.d(getPackageName(), "Whats New: " + release_notes);                    // Display Force update dialog                    displayAppUpdateDialog(version, release_notes);                }                else                {                    // If fetch failed then show a toast message                    Toast.makeText(MainActivity.this, "Fetch Failed",                     Toast.LENGTH_SHORT).show();               }           }    });    }    private void displayAppUpdateDialog(String version, String whats_new)    {        AlertDialog.Builder builder = new         AlertDialog.Builder(MainActivity.this);        builder.setTitle("New Version: " + version);        builder.setMessage("Whats New: \n" + whats_new);        builder.setPositiveButton("Update", new         DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                Toast.makeText(MainActivity.this,"Update Started",                 Toast.LENGTH_SHORT).show();            }        });        builder.setNegativeButton("Cancel", new         DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                        dialog.cancel();            }        });        AlertDialog dialog = builder.create();            dialog.show();    }}

If you have any queries to remote config then leave your comments below. I will try to solve your queries.

Thanks for reading 🙂 🙂

Android - Show A Dialog From Service

2020-04-04T22:45:00.000+05:30

In this article, I will be discussing how you can create a dialog from service. As we all know that service in android does not have any UI and it is intended for long-running background tasks.

But sometimes it is required to show some information to the user when your app is running in the background.

Today I will show you how you can implement this type of functionality in your application.

Before starting the tutorial let me tell you about the special permission that we are going to use.

Permission

AndroidManifest.xml<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>

This permission allows the app to use the system level window.

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.app.dialogfromservice">    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>    <application        android:allowBackup="true"        android:icon="@mipmap/ic_launcher"        android:label="@string/app_name"        android:roundIcon="@mipmap/ic_launcher_round"        android:supportsRtl="true"        android:theme="@style/AppTheme">        <activity android:name=".MainActivity">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>        <service android:name=".BackgroundDialogService"                       />    </application></manifest>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context=".MainActivity">    <Button        android:id="@+id/start_service"        android:background="#009688"        android:textColor="#FFF"        android:text="Start Service"        android:textStyle="bold"        android:layout_marginEnd="16dp"        android:layout_marginStart="16dp"        android:layout_gravity="center"        android:layout_width="match_parent"        android:layout_height="wrap_content"/></LinearLayout>

MainActivity.java

package com.app.dialogfromservice;import androidx.appcompat.app.AppCompatActivity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.widget.Button;public class MainActivity extends AppCompatActivity implements View.OnClickListener {    private Button start_service;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        start_service = findViewById(R.id.start_service);        start_service.setOnClickListener(this);    }    @Override    public void onClick(View v) {        Intent intent = new Intent(getBaseContext(), BackgroundDialogService.class);        startService(intent);    }}

BackgroundDialogService.java

package com.app.dialogfromservice;import android.app.AlertDialog;import android.app.Service;import android.content.DialogInterface;import android.content.Intent;import android.os.Build;import android.os.Handler;import android.os.IBinder;import android.util.Log;import android.view.WindowManager;import androidx.annotation.Nullable;public class BackgroundDialogService extends Service {    @Nullable    @Override    public IBinder onBind(Intent intent) {        return null;    }    @Override    public void onCreate() {        super.onCreate();        Log.d("Service Message", "Service Created");    }    @Override    public int onStartCommand(Intent intent, int flags, int startId) {        Log.d("Service Message", "Service Started");        Handler handler = new Handler();        handler.postDelayed(new Runnable() {            @Override            public void run() {AlertDialog.Builder builder = new AlertDialog.Builder(getApplicationContext());builder.setTitle("Hello").setMessage("This dialog is created from service.").setCancelable(false).setPositiveButton("Ok", new DialogInterface.OnClickListener() {public void onClick(DialogInterface dialog, int id) {                        dialog.cancel();                    }                });                int layout_params;                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)                {                    layout_params = WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;                }                else {                    layout_params = WindowManager.LayoutParams.TYPE_PHONE;                }                final AlertDialog alert = builder.create();                alert.getWindow().setType(layout_params);                alert.show();            }        }, 10000);        return START_STICKY;    }    @Override    public void onDestroy() {        super.onDestroy();        Log.d("Service Message", "Service Destroyed");    }}

In the above class, we have a method named onStartCommand where I have written a code for showing a dialog from service. So let’s understand this in detail.

The user interface looks very simple. So when you click on this button START SERVICE . It will start the service.

I am using the Handler class method onPostDelayed to show a dialog after 10 seconds. There are a few things which are required to understand

   int layout_params;                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)                {                    layout_params =                     WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;                }                else {                    layout_params = WindowManager.LayoutParams.TYPE_PHONE;                }

The above code checks the android os version and based on that, I am setting the window type. To show a dialog from service you need to set the window type.

So it seems work is almost completed and when you run the application and press the START SERVICE button you will see your app will crash in Oreo devices but why !!! you have done everything correct but still the app is crashing.

If you will check the Logcat you will see an exception

Unable to add window android.view.ViewRootImpl-
permission denied for window type 2038

The reason for this exception because from android API Level 26 you have to enable Display over other apps permission.

How to enable this permission

To do this you have two ways either you can check programmatically whether permission is given or either go directly to app info and enable the permission for Display over other apps. For this example I am going to manually enable the permission

Tap on Display over other apps

Now Tap on Allow display over the apps

Now Go back to your app and tap on the START SERVICE button and move your app in background. You will see the dialog after 10 seconds

Source code

https://github.com/vaibhavsharma316/TechieVaibhavTutorials/tree/master/DialogFromService

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Thanks for reading 🙂 🙂

Android - Create Root Checker App in Just 10 minutes

2020-04-04T22:43:00.000+05:30

Today, I will show you how easily we can create a root checker app in android. It only takes 10 minutes to create this kind of application.

activity_main.xml

<?xml version="1.0" encoding="utf-8"?><androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context=".MainActivity">    <TextView        android:id="@+id/textView2"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_marginTop="60dp"        android:text="This app checks the rooting status of your phone"        android:textAlignment="center"        android:textSize="18sp"        android:textStyle="bold"        app:layout_constraintEnd_toEndOf="parent"        app:layout_constraintStart_toStartOf="parent"        app:layout_constraintTop_toTopOf="parent" />    <TextView        android:id="@+id/status"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:textAlignment="center"        android:textSize="18sp"        android:textStyle="bold"        android:padding="10dp"        app:layout_constraintBottom_toBottomOf="parent"        app:layout_constraintEnd_toEndOf="parent"        app:layout_constraintRight_toRightOf="parent"        app:layout_constraintStart_toStartOf="parent"        app:layout_constraintTop_toTopOf="parent" />    <Button        android:id="@+id/check"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_marginBottom="96dp"        android:background="#009688"        android:text="Check"        android:textAlignment="center"        android:textColor="#FAFFFFFF"        android:textSize="14sp"        android:textStyle="bold"        android:typeface="sans"        app:layout_constraintBottom_toTopOf="@+id/status"        app:layout_constraintEnd_toEndOf="parent"        app:layout_constraintStart_toStartOf="parent"        app:layout_constraintTop_toBottomOf="@+id/textView2"        app:layout_constraintVertical_bias="1.0" /></androidx.constraintlayout.widget.ConstraintLayout>

MainActivity.xml

package com.app.rootcheckerapp;import androidx.appcompat.app.AppCompatActivity;import android.graphics.Color;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.TextView;public class MainActivity extends AppCompatActivity implements View.OnClickListener {    private Button check;    private TextView status;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        check  = findViewById(R.id.check);        status = findViewById(R.id.status);        check.setOnClickListener(this);    }    @Override    public void onClick(View v) {        if (Helper.isRooted())        {            status.setBackgroundColor(Color.parseColor("#228B22"));            status.setTextColor(Color.parseColor("#FFFFFF"));            status.setText("Device is Rooted");        }        else        {            status.setTextColor(Color.parseColor("#FFFFFF"));            status.setBackgroundColor(Color.parseColor("#B22222"));            status.setText("Device is Not Rooted");        }    }}

The above code is pretty easy. So in MainActivity we have a Check button. On clicking that button, I am calling a helper class method to check the rooting status of the device. This method returns true/false value. If true that means Device is Rooted otherwise not rooted.

And also I am setting the color of the background based on the returned value. If the device is rooted the text background color will be shown in green color otherwise background color will be red.

Helper.java

package com.app.rootcheckerapp;import android.util.Log;public class Helper {public static boolean isRooted(){    Process process = null;    try {        process = Runtime.getRuntime().exec("su");        return true;    }    catch (Exception e)    {        Log.d("Exception", e.toString());         return false;    }    finally {        // Destroy process        if (process != null)        {            process.destroy();        }    }}}

So in the above code, I have written the actual logic. So let’s understand it.

Runtime.getRuntime().exec(“su”);

The above line will execute the shell command su
It is similar to when we execute commands in terminal in Linux

The su stands for superuser. So basically when your device is rooted and you execute su command then it tells the android system and requests for the root access.

But in case if your device is not rooted then it throws an exception
java.io.IOException: Cannot run program “su”: error=13, Permission denied

The exec method returns the object of Process class. So if your android device is not rooted then Runtime.getRuntime().exec(“su”); method will return null . But in case if your android device is rooted then it will return the process object. So it is your duty to destroy the object of process.

That’s why in finally block we are destroying the process by calling process.destroy() method.

How to test the application

Well you can test it in android real devices. But if you don’t have two devices (where one is rooted and the other one is not – rooted). Then we can test it in android emulators too.

Many people say that android emulators are not rooted. But in reality android emulators before lollipop or API Level 21 are actually rooted. So from API level 21 onwards they are not rooted.

Android KitKat Emulator

Android Oreo Emulator

Source Code

https://github.com/vaibhavsharma316/TechieVaibhavTutorials/tree/master/RootCheckerApp

Thanks for reading 🙂 🙂

Reset MySQL Root Password

2020-04-02T21:25:00.000+05:30

Today, In this article we are going to learn how to “Reset MySQL Root Password“.

It is a good option to use this method only for resetting the password but it is highly insecure. So make sure after resetting the password, you also revert the changes from my.cnf file.

Note:
For Centos and Fedora Based OS
sudo service mysqld stop
sudo service mysqld start

For Debian and Ubuntu OS
sudo service mysql stop
sudo service mysql start

Steps

Here i am using amazon linux 2 OS (based on centos)

Stop mysql service – sudo service mysqld stop
Open /etc/my.cnf file – sudo nano /etc/my.cnf
Add skip-grant-tables under [mysqld] section
Start MySql Service – sudo service mysqld start
Open terminal and type mysql
and type following query and press enter
UPDATE mysql.user SET authentication_string=PASSWORD(‘Your new password’) WHERE User=’root’;
Then write FLUSH PRIVILEGES; and press enter
Now type – exit;
Stop mysql service again – sudo service mysqld stop
Open my.cnf file – sudo nano /etc/my.cnf
Remove skip-grant-tables and save the file.
Now Start the mysql – sudo service mysql start
Great!!! You have successfully reset your MySQL root password.

Now you can login as a root user with your new password. To do this Open terminal and type

mysql -u root -p and press enter and type your new password to login.

Also checkout my other mysql tutorial

If you have any questions related to this article. Please leave it in comments.
And if you liked this article then please do like and share this post.

Thanks for reading 🙂 🙂

Restore MySQL Database Without SQL Dump

2020-04-02T19:39:00.000+05:30

Today in this article “Restore MySQL Database Without SQL Dump” we will discuss how you can restore your database when you don’t have SQL dump file.

This happens when your MYSQL gets corrupted. In that case, if you want to make a back up of your database you can simply copy following files and then restore them after a fresh installation

Let’s Start

Generally MySQL gets installed on following location
/var/lib/mysql

On this location it create folders of your databases. For instance, if you have databases like test, test1, test2

Then on this location /var/lib/mysql – You will have three folders test, test1, test2.

And each of these folders will contain database files for the MyISAM database.

It will have three main files with the following extensions

frm
myi
myd

And another three files which will be inside in /var/lib/mysql. These files are for INNO DB database.

ibdata1
ib_logfile0
ib_logfile1

Steps:

Stop Mysql Service using – sudo service mysqld stop
Copy folder to /var/lib/mysql using – sudo cp -R test /var/lib/mysql
Copy inno db files using – sudo cp ibdata1 ib_logfile0 ib_logfile1 /var/lib/mysql
Make sure ownership is set to mysql. Check ownership using.
sudo ls -al
Set Ownership using following syntax
For Files – sudo chown user:group files
Ex: sudo chown mysql:mysql ibdata1 ib_logfile0 ib_logfile1

For Folders – sudo chown -R user:group folder name
Ex: sudo chown -R mysql:mysql test
Start Mysql Service – sudo service mysqld start
Now you will able to see your databases. 🙂

Note:
For Centos and Fedora Based OS
sudo service mysqld stop
sudo service mysqld start

For Debian and Ubuntu OS
sudo service mysql stop
sudo service mysql start

Also check Reset MySQL Root Password

If you have any questions related to this article. Please leave it in comments.

And if you liked this article then please do like and share this post.

Thanks for reading 🙂 🙂

How to Play PS3 Games On PC - Full Game Guide

2019-12-31T01:11:00.001+05:30

Hi GuyZ,

Today, I am going to show you , how to play PS3 Games on PC using RPCS3 Emulator. It is very easy to setup and play PS3 Games.

I got to know about this emulator some time ago and i thought i should give it a try . Initially i was not sure that whether it would work or not. But at last it worked.

I found it very to easy to setup and play PS3 games. Although this emulator is still in development stage so you may encounter with some errors. I haven’t got any errors.

In this tutorial, I am using PS3 PKG file. This emulator also supports dumping ps3 disc and ISO Images.

Prerequisites:

Important Tip
Before downloading any game make sure it comes under the playable section of rpcs3 compatibility. To check which game you can play using RPCS3 click HERE. Games which are showing in Playable Section are actually the games which are in running state and can be played using RPCS3 Emulator.

After downloading everything
1. Extract RPCS3 File.
2. Open the folder and double click on rpcs3 icon.
3. Go to File -> Install Firmware and select the PS3 Update file.
4. Once installation gets completed.
5. Go to File -> Install .pkg and select the .pkg file and press Open.
6. Once installation is done.
7. Copy your .rap file in dev_hdd0 -> home – > 00000001 -> exdata folder.
8. In your RPCS3 Emulator right click on the game and click on configure a new window will be opened. In this window you configure cpu, gpu etc.

I am using following settings . You need to select your GPU. Click on GPU Tab and then select the renderer. I have an external graphic card so i am using Vulcan as renderer. And then select Graphics device . I have GTX 750Ti Graphics card.

Once everything is completed the right click on the game and click on Boot with custom configuration to start the game.

When i played this game , I was getting around 30 FPS and the game was running very smoothly.

If you have any questions regarding this article. Then please do let me know. I would be happy to help you.

Thanks For reading

Devops - Docker Compose Part 1

2019-12-21T20:45:00.000+05:30

1. version – Version is the first attribute which your specify in your docker compose file. At the time of writing this post the latest version was 3.7 and which was introduced with docker engine 18.06.0+ version. If you will not specify the version you will probably get the error when you will try to run docker-compose up. Example – version: ‘3.7’

2. services – This is the second attribute which we specify after version in our docker-compose.yaml file. It is also a mandatory attribute otherwise you will encounter an error. Under services attribute we specify our docker containers. You can specify any no. of docker containers inside this.

3. Service Name – As we discussed under services attribute we specify our services name. For example myql: followed by colon(mandatory). Then inside our service we further add our different service attributes like container_name, networks, depends_on, volumes etc.
Example1 – mysql:
Example 2 – spring:
Example 3 – tomcat:

4. container_name – In docker images run inside a container and every container has a container ID and container name. So we can use this attribute to actually name our container.
Example – container_name: my_mysql

5. image – This is very important attribute. Here you specify the name of your image which you want to pull. This attribute in docker-compose.yaml file is equivalent to docker pull mysql command.

Automation - Update Naukri Profile Using Selenium

2019-12-15T01:47:00.000+05:30

Recently one of my friend came to me with a problem. He is looking out for new job but he feels quite boring to update his profile on daily basis. As some people says updating profile in the morning gives you more calls as it keeps the newly updated profile on top (Although i don’t know whether naukri works this way or not 😀 ). As i was more interested to solve his problem.

After listening his problem i came to solution that instead of updating it manually lets make this job automatic. And it is quite interesting how we can automate our daily boring task with automation.

Another day i came with the solution . And the solution was to make it automatic using selenium (Those who are not aware about selenium do check this link)

In short, Selenium is a Testing automation Framework. And it is for automating web applications for testing purposes, but is certainly not limited to just that.
Boring web-based administration tasks can (and should) also be automated as well.

Then i started figuring out how i can automate the task. Before this i haven’t worked on selenium. But i found it quite easy to learn selenium and using python. I wrote a script to automate this task. And took me 3 hours write this code (which includes learning selenium + writing code)

from selenium import webdriverfrom selenium.webdriver.common.keys import Keysyear = 2014driver = webdriver.Chrome(executable_path="/Users/vaibhavsharma/Documents/selenium/chromedriver")#driver = webdriver.Chrome("chromedriver")driver.get("https://www.naukri.com/nlogin/login")driver.implicitly_wait(60)emailElement = driver.find_element_by_id("usernameField")emailElement.clear()emailElement.send_keys("Your email Address")passElement = driver.find_element_by_id("passwordField")passElement.clear()passElement.send_keys("Your password")passElement.send_keys(Keys.RETURN)username = driver.find_element_by_class_name("user-name")username.click()resumeHeadlineSpans = driver.find_element_by_class_name("resumeHeadline").find_elements_by_tag_name("span")for span in resumeHeadlineSpans:    if span.text == "Edit":        span.click()        break# Here updating Naukri Profile Resume Headline.headline = """Extensive 5.6 years of Mobile app development .I have worked on android , iOS , xamarin forms, titanium appcelerator . I am also open to work on new technologies. Also have experience with server side technologies and frameworks."""resumeHeadlineTextArea = driver.find_element_by_class_name("resumeHeadlineTxt")resumeHeadlineTextArea.clear()resumeHeadlineTextArea.send_keys(headline)btnList = driver.find_elements_by_tag_name("button")for item in btnList:    if item.text == "SAVE":        item.click()        breakdriver.__exit__()

To run this script ,i have created a cronjob/Scheduler which executes this script in the morning at specified time.

So this how i solved the problem of my friend . Now i am also using the same script to update my profile as well. 🙂

With the selenium there are lots of boring stuffs which you can automate.

Do checkout my other python tutorials

If you have any questions regarding this article. Then please do let me know. I would be happy to help.

Thanks For reading

OpenCV - Image Filters

2019-01-20T14:59:00.000+05:30

Hello Guys,

In this tutorial, I will discuss the color map in OpenCV. Color Map is used to show different color temperatures. And this can also be used to generate some cool image filters.

OpenCV comes with thirteen built-in color maps. So in this tutorial, I will show you how to use color maps.

Let’s get started

List of Color Maps

COLORMAP_AUTUMN

COLORMAP_BONE

COLORMAP_JET

COLORMAP_WINTER

COLORMAP_RAINBOW

COLORMAP_OCEAN

COLORMAP_SUMMER

COLORMAP_SPRING

COLORMAP_COOL

COLORMAP_HSV

COLORMAP_PINK

COLORMAP_HOT

COLORMAP_PARULA

To apply color map first we need to convert an image to grayscale. So I will use

img = cv.imread("nature.jpg",cv.IMREAD_GRAYSCALE)

If you are not aware of this function then please check my previous tutorial http://techievaibhav.in/2019/01/10/reading-an-image-using-opencv/

To apply color maps, OpenCV comes with a function called applyColorMap(). This function takes two parameters.

Gray Scale image
Color Map

Autumn

Bone

Cool

Hot

HSV

Jet

Ocean

Parula

Pink

Rainbow

Spring

Summer

Winter

Program

#import cv2 moduleimport cv2 as cvdef showImage(effect,image):    cv.imshow(effect,image)    cv.waitKey(0)    cv.destroyAllWindows()    img_gray = cv.imread("nature.jpg",cv.IMREAD_GRAYSCALE)img = cv.applyColorMap(img_gray,cv.COLORMAP_AUTUMN)showImage("autumn",img)img = cv.applyColorMap(img_gray,cv.COLORMAP_BONE)showImage("Bone",img)img = cv.applyColorMap(img_gray,cv.COLORMAP_JET)showImage("jet",img)img = cv.applyColorMap(img_gray,cv.COLORMAP_WINTER)showImage("Winter",img)img = cv.applyColorMap(img_gray,cv.COLORMAP_RAINBOW)showImage("Rainbow",img)img = cv.applyColorMap(img_gray,cv.COLORMAP_OCEAN)showImage("Ocean",img)img = cv.applyColorMap(img_gray,cv.COLORMAP_SUMMER)showImage("Summer",img)img = cv.applyColorMap(img_gray,cv.COLORMAP_SPRING)showImage("Spring",img)img = cv.applyColorMap(img_gray,cv.COLORMAP_COOL)showImage("Cool",img)img = cv.applyColorMap(img_gray,cv.COLORMAP_HSV)showImage("HSV",img)img = cv.applyColorMap(img_gray,cv.COLORMAP_PINK)showImage("Pink",img)img = cv.applyColorMap(img_gray,cv.COLORMAP_HOT)showImage("Hot",img)img = cv.applyColorMap(img_gray,cv.COLORMAP_PARULA)showImage("Parula",img)

OpenCV - Drawing a Circle with python

2019-01-18T18:30:00.000+05:30

In this tutorial, I will show you how to draw a circle in OpenCV.

OpenCV comes with lots of built-in functions that make our life easier especially when we are working on image processing.

And there is a function called circle in OpenCV which is used to draw a circle.

This function takes following parameters:

1. Image: Takes an image object
2. Center: Center point coordinates
3. Radius: Radius of the circle
4. Color: Takes color in BGR format
5. Thickness: By default set to 1 (optional)
6. Line Type: By default set to 8-connected.It can also be LINE_AA or 4-connected (Optional)
7. Shift: Shifts fractional bits in the point coordinates of center and radius (Optional)

Especially when we are creating closed shapes. Thickness plays an important role. Here if the negative thickness is passed in this function or any other function which creates a closed shape(rectangle, polygon, etc). Then it creates a filled shape (filled with color).

Negative Thickness

Filled Circle

Positive Thickness

Outlined Circle

Anti Aliased Circle

Line Type Set to LINE_AA

Program

#import cv2 moduleimport cv2 as cvimg = cv.imread("nature.jpg")height,width= img.shape[0:2]#Hollow Circleimg = cv.circle(img,(width/2,height/2),100,(255,145,88),10)#Filled Circle#img = cv.circle(img,(width/2,height/2),100,(255,145,88),-1)#AntiAliased Curve#img = cv.circle(img,(width/2,height/2),250,(255,145,88),10,cv.LINE_AA)cv.imshow('Circle',img)cv.waitKey(0)cv.destroyAllWindows()

Thanks for reading 🙂 🙂

OpenCV - Drawing a line with Python

2019-01-17T21:52:00.000+05:30

Hello Guys,

In this tutorial, I will show you how to draw a line in OpenCV.

OpenCV comes with lots of built-in functions that make our life easier especially when we are working on image processing.

And there is a function called line in OpenCV which is used to draw a line.

This function takes the following parameters:

1. Image: Takes image object
2. Point 1: Point 1 X and Y Coordinates
3. Point 2: Point 2 X and Y Coordinates
4. Color: Takes color in BGR format
5. Thickness: By default set to 1 (optional)
6. Line Type: By default set to 8-connected.It can also be LINE_AA or 4-connected (Optional)
7. Shift: Shifts fractional bits in the point coordinates (Optional)

Well it is recommended to use line LINE_AA (
Anti Aliased) as line type.

Line Without LINE_AA (Anti Aliased)

You can observe the right and left ends of the line . You will notice curves are showing in a zigzag pattern.

Line With LINE_AA (Anti Aliased)

Now in this image you can observe the curves are smooth

Program

#import cv2 moduleimport cv2 as cvimg = cv.imread("nature.jpg")height,width= img.shape[0:2]#creating horizontal line at the center of image# Show curve in zigzag patternimg = cv.line(img,(100,height/2),(800,height/2),(255,144,100),50)#To avoid zigzag patten around curves of line.#LINE_AA - Stands for Line Antialiased (Creates smooth curve)"""img = cv.line(img,(100,height/2),(800,height/2), (255,144,100),50,cv.LINE_AA)"""cv.imshow('Line',img)cv.waitKey(0)cv.destroyAllWindows()

Thanks for reading 🙂 🙂

OpenCV - Show Video Properties with python

2019-01-14T20:00:00.000+05:30

Hi Guyz,

In this tutorial, I will discuss the video properties and how to view the video properties of any video file using OpenCV.

A video file contains different types of properties like width, height, frames, etc. Sometimes it is required to take out these basic video details. In order to make this work, easy OpenCV comes with built-in properties to ease out the work for developers.

video = cv.VideoCapture("video.mp4")video.get(0)

OpenCV has a function named get(propId).
Which takes property Identifier as an argument.

There are total 22 property identifiers that OpenCV supports.

List of Property Identifiers

One can also modify the properties of video file using set function.

This function takes two arguments.

1. Index
2. Property Identifier

In case, You want to modify the width and height of the video file.

video.set(3,320) # Width
video.set(4,480) # Height

Program

#import cv2 moduleimport cv2 as cv#This function shows the properties of a video filedef showProperties():    print('Current position - '+str(video.get(0)))    print('Frames POS - '+str(video.get(1)))    print('Ratio - '+str(video.get(2)))    print('Width - '+str(video.get(3)))    print('Height - '+str(video.get(4)))    print('FPS - '+str(video.get(5)))    print('FOURCC - '+str(video.get(6)))    print('Frame Count - '+str(video.get(7)))    print('Format - '+str(video.get(8)))    print('Mode - '+str(video.get(9)))    print('Brightness - '+str(video.get(10)))    print('Contrast - '+str(video.get(11)))    print('Saturation - '+str(video.get(12)))    print('Hue - '+str(video.get(13)))    print('Gain - '+str(video.get(14)))    print('Exposure - '+str(video.get(15)))    print('Convert RGB - '+str(video.get(16)))    print('White Balance U - '+str(video.get(17)))    print('White Balance V - '+str(video.get(18)))    print('Rectification - '+str(video.get(19)))    print('ISO SPEED - '+str(video.get(20)))    print('Buffer Size - '+str(video.get(21)))            while True:    ret,frame = video.read()    cv.imshow('video',frame)    if cv.waitKey(30) & 0xFF == ord('q'):        #Click q key will trigger this function.        showProperties()        breakvideo.release()cv.destroyAllWindows()

Don’t forget to check my other OpenCV Tutorials

Thanks for reading 🙂 🙂

OpenCV - Play Video with python

2019-01-13T21:27:00.000+05:30

Hello Guys,

In this tutorial, I will show you how to play a video file using OpenCV.

To play a video file or to stream a webcam OpenCV has a function named VideoCapture. This function takes only one argument.

If you want to play the video you need to pass the file name with extension. Ex: nature.mp4. Similarly, If you want to stream your webcam you need to pass a number or device index. Which simply means which webcam you want to access. Just in case, If you have more than one webcam.

If you have only one webcam then you have to pass 0 or else if you have two web cameras then for accessing the second web camera you have to pass 1 and so on.

Once we have initialized the video object by calling the VideoCapture function.
Then we will use an infinite while loop which will iterate till video.read() method returns true.

read() function returns two parameters

1. Boolean – If True video still playing or False if the video is ended.
2. Frame – Here frame is simply your picture.

We have also used imshow function to show a frame.

Program

#import cv2 moduleimport cv2 as cvvideo = cv.VideoCapture("video.mp4")while True:    ret,frame = video.read()    # If condition is used to check whether video is still playing or     #ended. True means playing False means video ended    if ret == True:        #frame means image        cv.imshow('video',frame)        # Pressing a key q to break the loop        #waitKey is used to display frames with 30seconds halt. So         #every frame will be rendered in 30seconds.        #You can adjust as per your requirement.         #Video will be too fast if less time will be provided ex:         #waitKey(1)        #Or too slow if more time is provided Ex: waitKey(60)        if cv.waitKey(30) & 0xFF == ord('q'):            break    else:        break        #release captured resources        video.release()#destroy opened windowscv.destroyAllWindows()

OpenCV - Writing an image

2019-01-12T22:31:00.000+05:30

Hello Guys,

In this article, I will discuss about how to write images in OpenCV.

For writing images, Opencv has the function named “imwrite“. This function takes two arguments.

1. Image name with extension
2. Image object

This function returns a boolean. If it writes the file successfully then it returns True, otherwise False.

# Import cv2 moduleimport cv2 as cv#reading an using imread function without passing any parameter# By default it loads the image in color formatcolored_image= cv.imread("nature.jpg") #imwrite returns True if it writes the file successfully otherwise #returns Falseresult = cv.imwrite("nature.png",colored_image)if result:    png_img = cv.imread("nature.png")    cv.imshow("Png Image",png_img)    cv.waitKey(0)    cv.destroyAllWindows()else:    print("Error in writing file")

Also don’t forget to check my previous OpenCV tutorials.

http://techievaibhav.in/category/programming/opencv/

OpenCV - Display Image

2019-01-12T22:03:00.000+05:30

Hello Guys,

In this tutorial, I will discuss how to display an image using OpenCV.

OpenCV comes with the function named imshow which is used to display images.

imshow function takes two arguments

1. Window name
2. Image object

We can show show any number of windows . But the name of each window must be different.

# Import cv2 moduleimport cv2 as cv#reading an using imread function without passing any parameter#by default it loads image in color format (BGR format)colored_image= cv.imread("nature.jpg") # loads image in gray formatgray_image= cv.imread("nature.jpg",cv.IMREAD_GRAYSCALE)#Code to display single imagecv.imshow("Colored Image",colored_image)#Passing zero means it will open till you press any key #to close the window. It takes time in milliseconds . So if 500 will be #passed then it will be opened for 500 ms and then it will be closed #automatically.cv.waitKey(0) # This is used to close all opened windowscv.destroyAllWindows() #code to display multiple windows. If you want to show multiple images #then you have to pass different window name for each windowcv.imshow("Colored Image",colored_image)cv.imshow("GrayScale Image",gray_image)cv.waitKey(0)cv.destroyAllWindows() # This is used to close all opened windows

Also don’t forget to check my previous OpenCV tutorials.

http://techievaibhav.in/category/programming/opencv/

OpenCV - Reading An Image with python

2019-01-11T01:11:00.000+05:30

Hi Guyz,

In this tutorial, I will discuss how to read an image in OpenCV using python.

OpenCV has the function called imread for reading an image. This imread function reads the image in BGR format. BGR stands for Blue Green Red.

This function takes two argument.

Image path
Flag

There are three types of flags which this function takes.

IMREAD_COLOR
IMREAD_GRAYSCALE
IMREAD_UNCHANGED

IMREAD_COLOR : This is the default flag which this function takes automatically. So if you want to read an image in the color format then you don’t have pass any flag. Or you can also pass 0.

IMREAD_GRAYSCALE : When using this flag it read an image in grayscale format. Or you can also pass 1.

IMREAD_UNCHANGED : Loads an image with transparency (Alpha channel). Or you can also pass -1.

import cv2 as cv

""" Reading Colored Image """colored_image= cv.imread("nature.jpg") #Same statement can also be written as colored_image= cv.imread("nature.jpg",cv.IMREAD_COLOR) #Or it can also be written ascolored_image= cv.imread("nature.jpg",1)

""" Reading Image in grayscale format"""gray_image= cv.imread("nature.jpg",cv.IMREAD_GRAYSCALE)#Same statement can also be written asgray_image= cv.imread("nature.jpg",0)

""" Reading Image With Alpha (Transparency)"""alpha_image= cv.imread("nature.jpg",cv.IMREAD_UNCHANGED)#Same statement can be written asalpha_image= cv.imread("nature.jpg",-1)

Also checkout my other OpenCV tutorials

Thanks for reading 🙂 🙂

Top 5 Budget Gaming Graphics Card Under 10K

2018-12-08T18:17:00.002+05:30

Hello Readers,

Today this article is about top 5 graphic cards which you can buy to play new high graphics game on your system.

1. Zotac Nvidia GT 1030 2GB GDDR5:

Specs:

GPU: GeForce® GT 1030
CUDA cores: 384
Video Memory: 2GB GDDR5
Memory Bus: 64-bit
Memory Clock: 6.0 GHz
PCI Express: PCIE 3.0
Display Outputs: VGA ,HDMI 2.0b
Recommended Power Supply: 300W
DirectX: 12
OpenGL: 4.5
Supported OS: Windows 10 / 8 / 7 (32/64-bit)
Buy Now

2.Gigabyte Radeon RX 550 D5 2GB

Specs:

Graphics Processing Radeon RX550

Core Clock OC mode: 1195 MHz

Gaming mode: 1183 MHz

(Reference clock: 1183 MHz)

Process Technology 14 nm

Memory Clock 7000 MHz

Memory Size 2 GB

Memory Type GDDR5

Memory Bus 128 bit

Card Bus PCI-E 3.0 x 8

DirectX 12

OpenGL 4.5

Recommended PSU 400W

Output Dual-link DVI-D *1

HDMI-2.0b*1 (Max Resolution: 4096x2160 @60 Hz)

Display Port-1.4 *1 (Max Resolution: 7680x4320 @60 Hz)

3.Gigabyte GeForce GV-N710D3-2GL 2GB

Specs:

Graphics Processing GeForce® GT 710

Core Clock 954 MHz (Standard: 954 MHz)

Process Technology 28 nm

Memory Clock v2.0 1600 MHz-v1.0 1800 MHz

Memory Size 2 GB

Memory Type DDR3

Memory Bus 64 bit

Digital max resolution 4096 X 2160

DirectX 12

OpenGL 4.5

Recommended PSU 300W

Accessories HDMI+DVI low profile bracket x1

D-SUB low profile bracket x1

Analog max resolution 2048 x 1536

I/O Dual-link DVI-D*1 / HDMI*1 / D-Sub*1

Buy Now

4.Gigabyte AMD R7 360 128 Bit GDDR5 2GB

Specs:

Graphics Processing Radeon R7 360

Core Clock 1200 MHz

Process Technology 28 nm

Memory Clock 6500 MHz

Memory Size 2 GB

Memory Type GDDR5

Memory Bus 128 bit

Digital max resolution 4096 X 2160

DirectX 12

OpenGL 4.5

Recommended PSU 500W (with one 6-pin external power connector)

Analog max resolution 2048 x 1536

I/O Dual-link DVI-I*1/DVI-D*1/HDMI*1/Display Port*1

Buy Now

5. Asus AMD Radeon R7250-1GD5

Specs:

Graphics Engine: AMD Radeon R7 250

Video Memory: GDDR5 1024MB

GPU Boost Clock : 1050 MHz

GPU Base Clock : 1000 MHz

Memory Clock: 1150 MHz ( 4600 MHz GDDR5 )

Memory Interface: 128-bit

Interface: D-Sub Output : Yes x 1

DVI Output : Yes x 1 (DVI-D)

HDMI Output : Yes x 1

Power Consumption: up to 75W

If you find any difficulty or you have any questions then you can leave your comments or drop an email to my inbox.

Don't forget to Like , Subscribe and share the post.

Enjoy

Mi Selfie Stick Tripod (Bluetooth Remote) Review

2018-12-08T15:36:00.002+05:30

Hello Readers,

Today in this article , i am going to review Mi Selfie Stick Tripod (Bluetooth Remote) . I have purchased this selfie stick 4 months back. So i thought i should share my experience with this selfie stick.

Before getting into details let me list down some its features and specification.

Features

Tripod
Detachable Bluetooth remote
Light and compact
Aluminium rod
360 degree rotating phone holder

Specs

Color: Black & White
Weight: 155 grams
Version: Android 4.3 or higher , iOS 5.0 or higher
Bluetooth version: 3.0
Battery life: up to 50,000 click and charging time 1 to 2 hours

Review

Looks:

The product looks premium and also light weight. The best thing it can hold any smartphone easily. I have tested this with mi and oneplus5 and this works great.

Tripod:

Its also comes with built in tripod stand so you fix your smartphone and click pictures using Bluetooth remote. You can also use this tripod to record youtube videos etc.

Quality & Weight:

Overall i am impressed with the quality and design of the product. And you can handle this because it is quite light weight.

Grip:

Apart from this the phone holder has tight grip so your phone does not slip. I have checked other selfie sticks(especially cheap selfie sticks) but they all have slipping problem. But this comes with tight grip so your phone does not slip.

Verdict

The mi selfie stick is an excellent option for selfie lovers and photographers. If you like travelling and want to shoot amazing selfies and photos then this is recommended product for you. I personally use this product a lot and i am quite impressed with the product.

I purchased this from the official mi Website

If you find any difficulty or you have any questions then you can leave your comments or drop an email to my inbox.

Don't forget to Like , Subscribe and share the post.

Enjoy

Play PlayStation 3 Games On Windows PC

2018-12-01T19:53:00.002+05:30

Hello Readers,

Today in this article i am going demonstrate you how you can play ps3 games on your PC.

Let's Get Started

You need following software's to play PS3 games on your PC.

1. RPCS3 Emulator

2. PS3 Update File

3. PS3 ISO/Pkg File (Download or buy choice is yours)

4. Microsoft Visual C++ 2017 ReDistributable

5. Direct X

So before downloading anything please go through this Compatible PS3 Games

You will find the list of games which are playable through this emulator. So only download/Buy those games which are under playable section otherwise you guys won't be able to play. you will find some indicators to show which game is playable or not.

Playable (35.63%): Games that can be properly played from start to finish

Ingame (44.64%): Games that either can't be finished, have serious glitches or have insufficient performance

Intro (17.8%): Games that display image but don't make it past the menus

Loadable (1.8%): Games that display a black screen with a framerate on the window's title

Nothing (0.13%): Games that don't initialize properly, not loading at all and/or crashing the emulator

For more information checkout this Getting Started with RPCS3

I have used GTA V PKG file to demonstrate the working of RPCS3 emulator.(See Screenshot below)

If you will see the screenshot closely you will see there is a compatibility tab which is in my case is showing in yellow color which means this game will have performance issue. And that is correct i was not getting good fps

When i ran this game i was getting around 25-30 fps. So you guys before downloading any game or software . Please make sure whether your desired game is under playable section or not.

Requirements:

1. CPU: Intel Quad-core and above with TSX-NI (Haswell and above)

CPU: AMD Hexa-core and above (Ryzen)
2. GPU: Vulkan compatible graphic cards

3. RAM: 8GB or greater

4. OS: Windows 7/8/10 Linux 64 bit

My System Specs:

1. CPU: Intel Core i3 4130 (4th generation)

2. RAM: 16GB Dual-Channel DDR3

3. GPU: 2GB ddr5 NVIDIA GeForce GTX 750 Ti

4. OS: Windows 10 Enterprise 64-bit

So there are possibilities that if you have high end PC then you may get more FPS.

How To Play:

1. Extract the emulator

2. Double click on rpcs3.exe file to start the emulator

3. Now click on file then goto install firmware

4. Select the firmware

5. Firmware installation dialog will be displayed

6. Wait few minutes to get the firmware installed.

7. Again click on file menu then goto install install .pkg

8. A dialog will be opened .

9. Wait few minutes to get the pkg file installed.

10. Once installed , Your game will be visible in the emulator.

11. Right click on the game select the first option Boot to start the game.

12. Play & Enjoy

Demo:

If you find any difficulty or you have any questions then you can leave your comments or drop an email to my inbox.

Don't forget to Like , Subscribe and share the post.

Enjoy

KO Player - Another Great Android Emulator For PC

2018-11-25T19:07:00.000+05:30

KOPLAYER is a best & free Android Emulator for pc that enables all Android games and apps to run smoothly in Windows systems.

It built on x86 Architecture, support advanced features like OpenGL & hardware acceleration, run faster, more stability and compatibility than other Android Emulators.

KOPLAYER Android Emulator for PC support multiple accounts, video recording, gamepad & keyboard, and internal integrated Google Play store to compatible with all apps, more than 99% apps & games Running perfect on KOPLAYER.

I tried this emulator and it works great.

No lags !! No Glitching !! Runs Smoothly

I think you should give it a try. It comes with pre installed playstore app . So you can download any game from there.

DOWNLOAD

If you find any difficulty or you have any questions then you can leave your comments or drop an email to my inbox.

Don't forget to Like , Subscribe and share the post.

Enjoy

Ragnos1997 - 3D Analyzer Killer !!!!

2018-11-25T16:51:00.002+05:30

Hello Readers,

I am back with an exciting new gaming software which will make you able to play high end games(mostly new games). Yes, This software is far better than 3D Analyzer which is Old and outdated. Now its time to move on to this new tool.

Ragnos1997 Low Specs Experience

It is developed by RagnoTech™ Software Solutions. It is a free tool which is designed for maximum possible performance.

It comes with three optimization methods.

The Low Specs Experience works on various hardware, from low-end to mid-end and high-end system specifications.

Low Specs Experience is simple to install and use. Developed by an independent developer, the software features a seamless and intuitive user-friendly interface that makes game optimizations faster and more automated for everyone.

I will also create series of articles on this. So you guys can learn how to use this software.

DOWNLOAD