My NetSys

Install Smarty and Configure it with Xampp or Wamp on Windows

2011-09-25T02:47:00.000-07:00

Web template engine for PHP, Smarty is best. It is helpful for web project that are performs by different people (e.g. programmer and designer). Smarty separates PHP from HTML, application logic and content from its presentation. It helps to replace business logic or design logic without hampering each other.

Configuration:

1. Download the latest XAMPP version from http://www.apachefriends.org/

2. Install at C: directory. (C:\xampp)

3. Create a new folder in xampp folder and rename it to smarty. (C:\xampp\smarty)

4. Download the latest Smarty version from http://www.smarty.net/

5. Unzip the content of Smarty zip file to smarty folder. (C:\xampp\smarty)

6. Create two folders templates_c and cache inside it. (C:\xampp\smarty\templates_c and C:\xampp\smarty\cache)

7. Open php.ini file (C:\xampp\php\php.ini), search for Paths and Directories. At Windows part, replace the line

include_path = ".;C:\xampp\php\pear\"

with

include_path = ".;C:\xampp\php\pear\;C:\xampp\smarty\libs\"

or Simply add the following

include_path = ".;C:\xampp\smarty\libs\"

8. Create a new folder in htdocs folder and rename it to smarty. (C:\xampp\htdocs\smarty)

9. Create two folders configs and templates inside it. (C:\xampp\htdocs\smarty\configs and C:\xampp\htdocs\smarty\templates)

10. Smarty configuration is done. Create two scripts index.php and index.tpl to test Smarty template engine.

11. Place index.php inside C:\xampp\htdocs\smarty\ and index.tpl inside C:\xampp\htdocs\smarty\templates\

index.php

<?php
// load Smarty library
require('Smarty.class.php');
$smarty = new Smarty;
$smarty->template_dir = 'C:/xampp/htdocs/smarty/templates';
$smarty->config_dir = 'C:/xampp/htdocs/smarty/config';
$smarty->cache_dir = 'C:/xampp/smarty/cache';
$smarty->compile_dir = 'C:/xampp/smarty/templates_c';
$smarty->assign('name','uzzal !!');
$smarty->display('index.tpl');
?>

index.tpl

<html>
<body>
Hello, {$name}
<body>
<html>

12. Open the web browser and type in the URL http://localhost/smarty

Active Directory DS Configuration on Wins08

2011-04-25T00:40:00.000-07:00

My NetSys: Setup Android Environment on Ubuntu 10.10

2011-03-20T21:39:00.000-07:00

My NetSys: Setup Android Environment on Ubuntu 10.10

Setup Android Environment on Ubuntu 10.10

2011-02-13T21:38:00.000-08:00

Android Environment on Ubuntu 10.10

Welcome new Android developers. As a new android developer you face some difficulties to setup environment specially Ubuntu (Linux). That's why,This article try to make easy & understandable to new developers.

This is an overview of the steps you must follow to set up the Android Development Environment on your Linux(Ubuntu) Box.

Step 1: Ensure that your development Computer meets the system requirements.
Step 2: Install jdk / jre (Most latest Version) on your Box.
Step 3: Choose an appropriate Eclipse IDE . Download Eclipse and install eclipse on your Box.
Step 4:Download Android SDK. Extract it to the root directory. Before install the SDK starter package go to Step 5: to install ADT plugin.
Step 5:Install the ADT Plugin for Eclipse.

N.B: You must install the ADT Plugin before the install SDK starter package. Otherwise its not work properly.

Installing Android SDK on Ubuntu 10.10

2011-02-08T03:13:00.000-08:00

Android SDK install process..

Android developers need install android SDK to develop android application. It is easy to install on Windows platform but in Linux (Ubuntu) it is quite difficult for new developers. That's why I try to make it easy. Lets come on to install sdk on Ubuntu 10.10 or as like.

Step 1: First you need to download SDK from http://developer.android.com/sdk/index.html. Download it from Linux (i386) row.

Step 2: After downloaded it try to extract to a specific location. You can do it by right clicking on folder -> Extract Here or by the following command.
tar xzf dir/android-sdk.tar
Where dir is the directory location of sdk and android-sdk is the name of your sdk
Step 3: Now move it to the root directory. To do this run the following command from terminal.
sudo mv dir/android-sdk ~
Where android-sdk means the folder name of extracted Android-sdk.

Step 4: Now you are ready to install it.This is a simple case on executing. Go to the SDK folder/tools/android and execute [SDK Folder]/tools/android (either via the command line for by double-clicking it).

You may face some trouble to executing this. You can fix it by giving permission on it. To give permission on it- right click android -> Properties-> Permission
Select checkbox -> allow executing file as program ->ok

Now double click on android

The SDK and AVD Manager will now load and you simply selected the Available Packages option, selected everything in the right-hand pane and clicked on Install Selected. After a length installation process you done this is your SDK/AVD Manager after the installation completed.

Step 5: Installing Android ADT (Android Developer Tool)

The first thing to do is to install the Android ADT (Android Developer Tool) plugin into Eclipse which you'll be happy to hear is a semi-automatic process.

    * Start Eclipse and select Install New Software from the Help menu.
    * Click the Add button next to the Work With dropdown list
    * Enter a suitable name for this resource, e.g. Android Developer Tools, and the following URL into the location: https://dl-ssl.google.com/android/eclipse
    * Click Ok

Eclipse will now search for the ADT plugins.

Select the Developer Tools checkbox (which will select the DDMS and Development Tools beneath it) and click next. After agreeing to the Licence Agreement (which of course you read first) click Finish and the installation will proceed.

You may get a security warning at this point because the packages are apparently unsigned but you just clicked OK to carry on. All things being equal you will be prompted to restart Eclipse.

Step 6: Final Step Installation
Finally you need to tell Eclipse where the Android SDK has been saved. To do this simply select Preferences from the Window menu, click on the Android option in the left hand pane and then the Browse button next to the SDK Location field. Navigate to the folder where you extracted the SDK and click OK. Click OK in the Preferences window and you are done.

Step 7: Make a project on eclipse selecting File | New you will see Android Project displayed and clicking it will display.

Prerequisite for Configuring NAS

2011-02-07T02:16:00.000-08:00

Setting up a NAS drive on a network....

You are trying to set up a storage device on your home or office network to store music, videos, pictures and all other necessary document in a central place. But you don't know the requirement to setting up a Network-Attached Storag(NAS). This article for you.

NAS drives are a practical file storage solution because data is kept at a central location and is made available to all users on the network.

The Users on the network may be running on Windows, Linux or Mac OS, or they may be the devices like a printer. NAS drives are being used by large organization and home networks to store, share and back-up copies of data.

Setting up a NAS drive on a network involves the following tasks:
1. Connect the NAS drive
2. Check IP Addresses
3. Install the NAS Software
4. Map a Network Drive

Installing Eclipse Helios on Ubuntu 10.10

2011-02-03T03:50:00.000-08:00

Eclipse Install on Ubuntu

To install eclipse on ubuntu you need to download it first from http://www.eclipse.org/downloads/

Extract the downloaded file by right click on it and extract here or running the following:

tar xzf dir/eclipse-SDK-3.3.1.1-linux-gtk.tar.gz

Where eclipse-SDK-3.3.1.1-linux-gtk is your eclipse-SDK name with version and dir is the directory of eclipse-sdk.

Now move it to the root directory. Apply the following command to do this.

sudo mv dir/eclipse ~

Now You are ready to configure your eclipse. To do this follow the following step by step...

sudo mv eclipse /opt/

Take care of the permissions:

sudo chmod -R +r /opt/eclipse
sudo chmod +x /opt/eclipse/eclipse

Create an executable in your path:

sudo touch /usr/bin/eclipse
sudo chmod 755 /usr/bin/eclipse
sudo gedit /usr/bin/eclipse

Copy the following content and save the file:

#!/bin/sh
#export MOZILLA_FIVE_HOME="/usr/lib/mozilla/"
export ECLIPSE_HOME="/opt/eclipse"
$ECLIPSE_HOME/eclipse $*

Let’s also make eclipse executable everywhere by creating a symlink:

sudo ln -s /usr/bin/eclipse /bin/eclipse

Create the menu icon:

sudo gedit /usr/share/applications/eclipse.desktop

Type in this content and save:
......................................................
[Desktop Entry]
Encoding=UTF-8
Name=Eclipse
Comment=Eclipse IDE
Exec=eclipse
Icon=/opt/eclipse/icon.xpm
Terminal=false
Type=Application
Categories=GNOME;Application;Development;
StartupNotify=true
..................................................

Run for the first time:

eclipse -clean

You can now start Eclipse by simply typing eclipse in the terminal or from the GNOME menu Applications -> Programming -> Eclipse

Sun-Java-JDK-Install on Ubuntu 10.10

2011-02-03T02:20:00.000-08:00

JDK install On Ubuntu 10.10

Face any problem to install sun-java sdk on ubuntu 10.10 or any other version. This is for you.. Hope this may help you to resolve your problem.
Lets start, what we are doing? We are trying to install sun-java-sdk on ubuntu. At first you have to see , have any source package list added on /etc/apt/sources.list.If not so , you have to add source package list on /etc/apt/sources.list. To do so give the following command from your terminal.

sudo gedit /etc/apt/sources.list.d/sun-java-community-team-sun-java6-maverick.list
Add following two lines

deb http://ppa.launchpad.net/sun-java-community-team/sun-java6/ubuntu maverick main
deb-src http://ppa.launchpad.net/sun-java-community-team/sun-java6/ubuntu maverick main

Now you add another source list by following command from terminal.

sudo add-apt-repository ppa:sun-java-community-team/sun-java6

You have to update your computer by following command

sudo apt-get update

Now your computer is ready for install java-sdk6. For install give the following command from command prompt . this may require your root password if you don't have administrative privilege.

sudo apt-get install sun-java6

This will install sun-java6 on your system. If face any problem try to fix broken package by command dpkg -i

After fixing broken package try to install sun-java6 again. If again you facing problem then try it another way. In this way goto System->Administration->Synaptic Package Manager

Search JDK from Quick Search and Mark for Installation on sun-java-jdk, sun-java-jre, sun-java-bin. and then apply.

I hope in this step you have no trouble to do it.

My NetSys: LAN Design & Configuration Document

2011-02-03T00:41:00.000-08:00

My NetSys: LAN Design & Configuration Document

How to Configure VPN

2011-02-02T03:11:00.001-08:00

VPN Configuration

Gateway to Gateway VPN Configuration:

Figure showing VPN connection between two routers in different LAN, may be different place or different country.

To configure this you have to configure flowing values on both routers.

Tunnel No.	// Chose your Tunnel No.
	Tunnel Name
	Interface
	Enable

Local Group Setup

Local Security Gateway Type

IP address

. . . //This is your router WAN IP

Local Security Group Type

	IP address	. . .
	Subnet Mask	. . .

Remote Group Setup

Remote Security Gateway Type

. . . // This is Remote Router WAN IP

Remote Security Group Type

	IP address	. . .
	Subnet Mask	. . .

IPSec Setup

Keying Mode

	Phase1 DH Group
	Phase1 Encryption
	Phase1 Authentication
	Phase1 SA Life Time	seconds

	Perfect Forward Secrecy

Phase2 DH Group

	Phase2 Encryption
	Phase2 Authentication
	Phase2 SA Life Time	seconds
	Preshared Key	// Chose this on HEX or arbitrary

If you follow above instruction, I think you will reach the goal.

N.B: IPSec Setup portion can vary on different brand router. Also vary the format of configuration. But the major things you should in mind that the local gateway and work group IP and Remote Gateway and work group IP you have to configure. To make the tunnel secure give an Preshared Key.

Client To Gateway VPN Configuration:

If you try to reach your office internal LAN for do job from abroad you have to configure Client to Gate VPN configuration.

Tunnel

Group VPN

	Tunnel No.
	Tunnel Name
	Interface

Enable

Local Group Setup

Local Security Gateway Type

IP address

. . . //Your Local Router Gateway IP

Local Security Group Type

	IP address	. . . // Local work Group IP
	Subnet Mask	. . .

Remote Client Setup

Remote Client

. . . // Remote Laptop or PC IP

IPSec Setup

Keying Mode

	Phase1 DH Group
	Phase1 Encryption
	Phase1 Authentication
	Phase1 SA Life Time	seconds
	Perfect Forward Secrecy

Phase2 DH Group

	Phase2 Encryption
	Phase2 Authentication
	Phase2 SA Life Time	seconds
	Preshared Key	// Chose this on HEX or arbitrary

The above format of configuration may vary on different brand Router. But you have to configure Local Router gateway IP , Local User group IP and Remote Laptop/PC IP.

LAN Design & Configuration Document

2011-02-02T02:58:00.000-08:00

You can configure this LAN (Network Setup) in two ways. 1: Using DHCP Service Enable, 2: Static or Manual IP enable.

DHCP Service Enable:

Go to your router using 192.168.1.1 or your Router IP from your Laptop or computer using any browser.
Now go to LAN setup and enable DHCP and give the DHCP IP range with subnet mask. Such as IP 10.10.10.1 and subnet mask 255.255.255.0 where usable host IP 254 and your Local LAN gateway is 10.10.10.1 and set IP range for DHCP 10.10.10.100 -10.10.10.10.200

Also you have to configure Primary Domain and Secondary Domain IP. If you use your own DNS server (say your DNS server IP is 10.10.10.10) put 10.10.10.10 here.

You have to reserve an IP for DNS server if you using DNS server, say IP 10.10.10.10 is dedicated for DNS server.

Now go to host computer and enable automatic network connection but only manually configure DNS server IP.

Static IP Configuration:

Go to your router using 192.168.1.1 or your Router IP from your Laptop or computer using any browser. Now go to LAN setup and disable the option enable DHCP and put the Static IP 10.10.10.1 on IP field with subnet mask 255.255.255.0 where usable number of host 254 and your Local LAN gateway is 10.10.10.1

Also you have to configure Primary Domain and Secondary Domain IP. If you use your own DNS server (say your DNS server IP is 10.10.10.10) put 10.10.10.10 here.

Now go to host and configure network connection manually. Here you have to use 10.10.10.10 IP as your primary DNS server. If you do not use your own DNS server then put the IP of DNS that are provided by you service provider ISP.

Database (SQL) Normalization

2011-02-01T22:22:00.000-08:00

Normalization is the most important concept for designing SQL. To normalize data on database we follow some rules called normalization rules.

There some rules for normalization.
Rule 1: There should be a one-to-one relationship between the instances of an entity and the rows of the table.

Rule 2 : A field should have the same meaning in each row of the table.
Rule 3 : Each table should represent at most one entity.
Rule 4 : Multiple instances of an entity should be represented by multiple rows in a table.
Rule 4.1: Multiple instances of an entity should not be represented as multiple columns.
Rule 4.2: Multiple instances of an entity should not be represented as multiple tables.
Rule 5 :Joins should be based only on primary and foreign-key equality.
Rule 6 :Make sure keys are linked correctly.

Apache Server Vs TomCat

2010-12-13T02:40:00.000-08:00

Apache server is a web server. Tomcat is a servlet container where servlet container is compiled , executable program. Browser connects to Apache, whether Tomcat contain what are connect from Apache to process. However, tomcat now includes a web server so you can cut out the middle man. You would not want to do this on a large environment process to produce you production. Here container work as a intermediary between web server and servlet in the servlet container.

When a request arrives, the container points the request to a servlet and passes request to produce response by translating into C++ objects. The container translates the response into the network format and send it back to the Web server.

MPLS(Multi-Protocol Label switching) Network

2010-12-12T22:43:00.000-08:00

In Highly redundant and secure network, MPLS Network and WAN services carry out data from point to point based on user request or demand.
To ensure utilizing of network, maintain the demand voice,video,data efficiency with QoS and Managed router, MPLS Plus create a fully private mesh network.
Even to access higher bandwidth options MPLS is now using Metro Ethernet .

Feature of MPLS:

Fully Private mesh network
Work over frame relay, ATM, IP and such network
Cost-effective & flexible replacement
Much more affordable than creating your own private, point-to-point network
Inter-state, self-healing network
The same security and reliability features as traditional frame relay or ATM services, with the benefits of IP