Latest IT Support

How to report abuse about a person in facebook timeline

2012-09-03T11:06:00.003+06:00

Report against a person due to any misuse or violation is acceptable in Facebook and the best technique to report offensive content on Facebook is by using the Report link that appears near the content itself. But while reporting content doesn't assurance that it will be removed, Facebook admin team will review that/those reports to see if they violate the Facebook Terms then they will removed it from Facebook.

If you want report a person for abuse in timeline you have to follow the below steps:-

Click the gear menu in the top right side of the timeline you'd like to report

Facebook Report Abuse for any violation

Choose the Report/Block option to report the account to Facebook

How to change time zone and time-date format in Windows XP

2012-08-13T12:54:00.001+06:00

System Time and Date is an important for most of software. To change your computer's time and time zone, you should follow the following steps:-

Time, Date and time zone change process:

1. Open Date and Time in Control Panel.

Date and Time settings

2.On the Date & Time tab, select the item you want to change.

To change the hour, double-click the hour, and then click the arrows to increase or decrease the value.
To change the minutes, double-click the minutes, and then click the arrows to increase or decrease the value.
To change the seconds, double-click the seconds, and then click the arrows to increase or decrease the value.
To change the AM/PM indicator, select it, and then click the arrows.

3.To change your time zone, click the Time Zone tab. In the box above the map, click the drop-down arrow, and then click your current time zone.

Language and Time, Date Format change process:

To open Date and Time, click Start, click Control Panel, click Date, Time, Language, and Regional Options, and then click Date and Time.
Windows uses the time setting to identify when files are created or modified.
If you want your computer's clock to be adjusted automatically when daylight saving time changes, make sure the Automatically adjust clock for daylight saving changes check box is selected. This setting is located on the Time Zone tab.
Most computer clocks are regularly synchronized with a network time server (if you are a member of a domain) or an Internet time server (when you connect to the Internet).
You can also open the Date and Time Properties dialog box by double-clicking the clock on the taskbar.

Data recovery steps from crashed or physically damage Hard Disks

2012-08-11T12:22:00.001+06:00

Hard disk is common data storage for system, but if it may be damaged or corrupted for many reason. We are in deep trouble when we can't read document or information from hard drive. In such situation data recovery can relief us from worry.

When data can not readable from hard drive due to data damage or data corruption, then we need to run recovery techniques.

Your Hard Disk may crash for several reasons:-

•    Hard drive head collapse or motors failure is common mechanical fault for crashing.
•    Motor bearing problem for spinning platter lead to physical damage.
•    Circuit board (PCB) of Hard disk.
•    Over heat produce from disk.
•    Accidental power failure in time of data writing process.
•    Dust in read/write heads of hard drive.

Data Recovery from Crashed Hard drive

To avoid data lost due to crash from computer or laptop you may use utility for Data Backup Online tools (Online Backup for Business - Backup Unlimited PCs - Continuous Data Protection - SSL Security - Backup Now!) which will protect you all the time from physical data lost and data security and privacy is 100% assured in Online Backup service.

Recover Data from Crashed or physically damage Hard Disks

First Check is it detect by your Motherboard. If detect by Motherboard then check is it show memory space in BIOS. If not then you must sure of Physical damage.

Recovery Process:
In most cases, physical damage can not fix at user end due to dust can harm hard drive head when it open in user environment.

There are many technique involve data recovery process from physically damage hard drive. If problem in head or PCB or pin, then it can solve by replacing those parts.

Now ensure, your hard drive sense by Motherboard and show space and booting then it will OK. But if not booting, Just show only space then you should run some dependable Logical Data Recovery Software.

There are many Logical Data Recovery software will available on internet.

Limit your friends from chat in Facebook or go offline in Facebook

2012-08-02T15:56:00.001+06:00

Chat is almost regular feature of any social media site, Facebook not out of them. It provides chatting facility to it’s user. Facebook chat is not like other chat software or messenger because here you don’t have any extra facility except chatting.

Chat is automatically on in Facebook when user login to his account and chat window shown in the bottom right corner of explorer. When chat is on, then you are visible to all who are in your friend list in the chat room. When you are visible in chat, a green round icon will show to your friends chat list at the right side of your name.

But, you can use this feature as per your choice. That means you can restrict anyone in your chat room by invisible or hiding you from chat room. But you are still visible as online except chat in others friend list. In Facebook, there are three advance options for restriction visibility in chat room. Below I show you steps to limit your friends from chat room by using three options.

Steps:-
1. After login to your Facebook account, go to chat button at bottom. Double click on the button.
2. A window will open, where you will see all of your friends who are recently interact with you and who are online for chat. You can differentiate them by a green round icon appear right side of friends name, who are online and available for chat.

Go Offline in Facebook

3.    Now you will find a star (option button) at the top right of chat window, after clicking there a drop-down menu will open. Here you click “Advanced Settings”, and then a new window will open.
4.    In the “Advanced Chat settings” window you will find three option radio buttons. Select first one, if you want to visible in chat room except one or more friends.
5.    Select second one, if you want to visible in chat room for one or more friends.
6.    Select last one, if you do not allow anybody to chat and wants to set your chat status as Offline (Go offline).

Process to unsubscribe updates (status, photos) of specific friends in Facebook.

2012-07-30T11:42:00.000+06:00

After login our Facebook account, first we see status updates and photo share from all friends in our news feed. This updates list is in descending order of date and time and we see very recent post or photo share at the top of the Facebook home window.

By default, we see only most updates of status and photos only from friends who are listed in our Facebook friend list. We can not get all update from our friends.

Sometimes we need to unsubscribe post update or photos for a specific friend in news feed due to personal problem or privacy related issue without inform him or her. To help us on this situation, Facebook is ready with it’s built-in feature, which very easy and your friend won’t get any notification regarding unsubscribe him from your news or story feed.

Below I will illustrate you steps to refrain or avoid getting status updates from your specific friend:-

Steps:
1. Login to your Facebook Account.
2. Now go to on an updates of your specific friend, whom posts or photos updates you want to unsubscribe.
3. In the left top of the post you will find a down arrow button or box. Click on that down arrow, a drop-down menu will appear.

Unsubscribe updates from your friends

4. In the bottom of the drop-down menu, you will found two links. One is “Unsubscribe from your friend” which will block most updates from your friends. Another is “Unsubscribe from photos by your friend”, which will block only photos from your friend.

After click on any link, Facebook show a message on the same post and here also a link for undo (If you wrongly or unintentionally do it or change your mind after activation), which only appear one time after activate the feature for that friend.

Optimize internet browsing when Bandwidth is major issue

2012-07-14T12:06:00.000+06:00

Internet browsing speed very much related with bandwidth of connection and it is a big deal when cost is not reasonable or expensive or low bandwidth. In my case, slow connection due to low bandwidth by provider or ISP. But I optimized my browsing by taking some important changes in my browser settings.

We used to looking for information rather video or image frequently. So when we don’t need images and video we can disable it from settings which increase performance and make faster loading of Webpages.

Settings vary from browser to browser. I give you support for Internet explorer and Mozilla Firefox.

In case of Internet explorer, you will find it in Tools menu ->Internet options sub menu->Advanced Tab ->in box select Multimedia down scrolling scroll bar -> Now unmake show picture and play animation in Webpages.

In case of Mozilla Firefox, you can fix it from Tools menu -> options sub menu -> content tab then unmarked load image automatically.

This is one option for optimized browsing speed, there are also more options. Another option I am talking about is Block Pop-up from sites. If we do not block pop-up, it will take time to load page. But if we disable it then it will not load and our page loading time will reduce.

Block pop-up setting can be available in all browsers.

For explorer, you should go to Tools then Internet options, there you will find “privacy” tab, now check on the check box “Turn on pop-up blocker".

For Mozilla, you need to go Tools, then options, there you will find “content” tab, now check beside “Block pop-up windows”.

In case of other browser like chrome or opera etc you will find it in tools/options most of the time.

After follow above suggestion, I think you will get optimized speed for browsing and save your data consumption.

Fast Booting by selecting HDD as First Boot Device

2012-07-13T16:45:00.001+06:00

Booting device selection is common task for any BIOS software, where it must decide which device is used for first booting and if not available then it will search for another device. This device searching takes time and slow startup for system. But if you select booting option properly in settings you can get rid of such searching and minimize operating system loading time.

Depending on motherboard of system there are many options for booting operating system from device. These options are define in BIOS setting. Most common booting options (regardless software of BIOS) are like:-

- From Floppy Disk (too much Old), For DOS OS

- From ZIP Drive also obsolete like Floppy Disk
- From CD/DVD
- From Pen Drive/Portable HDD with USB support
- From Tape
- From LAN
- From local HDD

Most of the case, we use local HDD for booting where OS (windows/Linux) is/are installed. But BIOS Default Setup for most of manufacturer, HDD is not first boot device. First boot device is set to removable media or Floppy drive (In old system). So, when the system starts it looking for removable device for booting and wasting time by searching OS in removable disk. But if we set HDD as first boot, then it will automatically find the HDD first and no time delay for searching removable media.

An exceptional case when we start a fresh windows setup, windows needs to boot from CD or DVD or removable media first. Because windows setup comes with removable media and if any OS exist in HDD with BIOS first priority for Hard drive booting first. It skips CD/DVD and can not start setup. In that case you need to set Removable device as first boot device and after setup you again set HDD as first boot drive.

IP Address conflict related problem, error and solution for Windows OS

2012-06-21T16:08:00.000+06:00

When we connect our PC or Laptop through a LAN (Local Area Network) with home network, we may receive a common error message "Conflict IP address with another computer". This message confirms that you are using a IP which is already exist in network and same address is not permitted in any network because IP is unique inside any private network or global network (public network which we called real IP). Below I state reasons behind this conflict and resolution for this specific problem.

Reason for this error message:

1. Your configured IP address is used by another system of your existing network, which is currently running and power on.
2. May be you use LAN and a DHCP server at the same computer and your static LAN IP address block same with DHCP IP address block.
3. Multiple Network card installed in your computer and IP addresses of network adapter is same configured.

IP Address conflict problem

Solution:

1. If you know the network address block, subnet musk, default gateway (if applicable) and unused IP address for your network then reconfigure your network with a new IP address (Set or change IP address) or contact your network administrator to issue a new IP address for you computer or laptop.
2. If you want to keep your current IP address, then you must trace who is using your IP address in your Network by asking your network administrator and request the user to change his IP address to release current address.
3. If you use DHCP and Static LAN simultaneously, then both addresses must be different IP block so that they can not conflict with each other.
4. You can use only DHCP when it is big network, because DHCP assign IP address dynamically so there is no probability to conflict IP address. To know more DHCP please click.

Baseband signal g(t) Modulation Concept and Different Modulation Scheme with equations

2012-06-15T10:48:00.001+06:00

Modulation is used to modulate baseband signal. Basically it is a technique used to generate a strong signal from a weak signal with help of a transporter signal known as carrier signal.

A baseband signal is main source of any signal. It can be a sinusoidal wave or discrete pulse. In communication a baseband signal need to traverse long distance, but it become weak with respect to distance so that we need to add a carrier which carry the base band signal and send baseband signal to destination.

A baseband signal pass through a modulator with carrier frequency then transmission starts, on other side demodulator demodulate signal and receive the original signal.

Practical example: If we through a paper it will traverse some distance but if we through it along with a stone it will traverse more distance. Here paper is baseband signal and stone is carrier.

Basic signal modulation concept with carrier frequency

There are three basic type of Modulation schemes which are describe below:

1. Analogue Modulation
2. Digital Modulation
3. Pulse Modulation

Analogue Modulation:

This modulation scheme works with analogue signal (continuous signal varies in time) to traverse forward.

AM:Amplitude Modulation
FM:Frequency Modulation
PM:Phase Modulation

Digital Modulation:

This modulation scheme works with digital signal (discrete signal)

ASK:Amplitude Shift Keying
FSK:Frequency Shift Keying
PSK:Phase Shift Keying

Pulse Modulation:

This modulation scheme works with pulse wave.

PAM:Pulse Amplitude Modulation
PFM:Pulse Frequency Modulation
PPM:Pulse Position Modulation
PWM:Pulse Width Modulation

Different Modulation Schemes

Amplitude Modulation Equation for Baseband Signal in frequency domain is:-

S(t)=[1+ mg(t)]c(t)

=A[1+ mg(t)] cos(w_ct)

A = Amplitude

m = Modulation Index

g(t) = Baseband Signal

w_c=Angular Frequency (rad/sec)

Frequency Modulation Equation:

s(t) = A cos Ø(i)t

Where Ø(i)t is instantaneous phase

Increase security of Facebook by setting security question

2012-06-12T11:10:00.000+06:00

Security Question is one of the security measures for latest website(s). Most of the new or establish website imposes this feature for user to increase security level. In this feature, users have to select one or multiple common question from drop down set by website administrator. After that they input answer for their question(s).

This question and answer used when user request for any secret such as reset forgotten password, change email address or any type of personal information based on strategy of the website(s).

Facebook also implement security question to distinguish between original and fake user.

So, security Question is an important security measure to prevent your Facebook Account. If you haven't set your security question yet, please set your security question now!

Steps to set Security Question in Facebook account:

1. Click on Drop-Down (Down Arrow) right side of "Home" Menu.
2. under this menu, Click on "Account Settings" submenu.
3. On Account Settings window you will find "Security" Tab in the left side, now in right side select Security Question.
4. Now select your security question and type your answer (Tips: Never select common question which is known by your friends or public, and answer should be unknown or uncommon to your circle. Never use irrelevant answer for your question because after long time may be you can not memorize your answer, but if you set relevant answer you can memorize easily).

Note: If you have already set your security question, you will not able to see the security question tab under security and Account Settings of your Facebook.

Mistakes and guideline to protect your Facebook account from unauthorized access

2012-06-10T10:50:00.003+06:00

Facebook account unauthorized access is unwanted and troublesome for anyone, may be your friends or closer who know your Facebook id and some common secret about you, can try for illicit access of your account and if they provide sufficient information about you that satisfy Facebook security policy, they can get access of your account. After login they can easily change anything of your profile. So you need to be aware of security of your Facebook account, which involve password, e-mail address, security question etc.

You can protect your Facebook account from any sort of illegal access by other just following below steps:-

Steps to avoid unauthorized access:

1. Don't share your email address with others, that used in Facebook login or do not publish it publically so that others can not find it very easily from your public profile.

2. Try to use different E-mail address for Facebook login and avoid your correspondence e-mail for this purpose.

3. You must fill up your Security Question and answer should not common or unknown to your close friends, relative etc. Click the link to know the technique of set security question.

4. Never share your Facebook password with your closer one even if there is an urgent issue.

5. You must properly log out each time when you leave your work station.

6. Don't click keep me logged in when you log in from outside or insecure place specially cyber cafe. In that case if you forget to logout then next user can get full access of your account.

7. You must set strong password combination of alphanumeric and special character. (Never set password based on common clue, like: your mobile number, friends name, pet name, reg number/roll number, ssn number etc).

Mistakes and guideline to protect your Facebook account from unauthorized access

Brief and Examples on Simplex, Half-Duplex, Full-Duplex Transmission

2012-06-07T12:54:00.002+06:00

In data communication, there are three types of communication styles; they are Simplex, Half-Duplex and Full-Duplex. Here we discuss about their characteristics with examples.

Simplex:

In this communication style data can send only and basically it is one way or uni-direction communication. This type of communication is not widely used for transmit trusted data because it can not send any error or control signal to sender terminal.

This style of communication is vastly used in Radio and TV where we can see and hear or receive data only but we can not send any information data by the same channel.

Half-Duplex:

Half-Duplex is another type of communication style where data can and send and receive but not at the same time. In this communication type, if data is send from one end, then we can not send data from another that means communication establish in one direction.

This communication vastly used in walkie-talkie, intercom, string phone etc. The practical example is, when we talk with walkie-talkie or intercom we can talk only one way that means one can speak at a time and another should hear on that time and after hearing he has to say over to start speaking from other end.

Full-Duplex:

In Full-Duplex communication, data can send and receive at the same time from both ends that means both way bi-direction communications simultaneously. In this style we can send data from A end to B end and B end can send data to A end at the same time without any interruption or overlapping data.

A Full-duplex Ethernet with two twisted pair is the best example of Full-Duplex communication which is widely used for faster data communication and it also increases data capacity. We can use this for multipurpose data communication at the same time like internet, cable TV and phone etc with the same cable.

Restrict deletion of printer to ensure misuse of system

2012-06-02T15:17:00.001+06:00

Printer is an important output device for any system. When need hard copy of any soft copy we must need a printer to print the document on paper. Printer may be connected through LPT port or USB port, but modern printers are come with USB port. Then it needs a driver for specific operating system version to install properly. After installation, printer icon will appear in control panel under Printers. Now before printing it must ensure that icon exist and work properly.

There are many possibilities for removal of printer software or driver by others wrongly or intentionally. But you can protect it and restrict user from deletion of printer software from add/removal program or driver from control panel by click on uninstall button.

In windows operating system, there are number of way to protect user from deletion printer. Here I describe very simple and shortcut method with the help of group policy edit.

Steps for printer deletion in windows OS:

1. Go to START menu, and then click on RUN or Keyboard shortcut for RUN is “Microsoft Button+R” simultaneously, a box will appear for typing, now type gpedit.msc which is not case sensitive.

2. A new window open named Group policy window, here in the left pane goes to User Configuration->Administrative Templates->Control Panel->Printers.

3. In left pane of the same window double click on Prevent Deletion of Printers.

4. A new window settings window will appear, then click Enable.
This means you enable printer deletion protection for all users. But if you have more users then you must specify for individual settings.

Prevent or Restrict user from deletion of printer in Windows

Implement posting restriction in Facebook timeline

2012-05-28T11:15:00.001+06:00

When we see some unwanted writings in our timeline, which is very much inconvenience and hesitating for us. But if we use privacy settings properly in Facebook, then we can avoid such unpleasant situation.

Posting restriction is an outstanding feature of Facebook profile. In this feature one can easily implement different level posting input restriction in timeline of individual profile.

It is also important for personal privacy, because by this restriction you can decide who can post in your timeline and who are not. When you want to keep it within your friends circle then only your friends can post in your timeline, similarly if you are not permit anyone, then no one can write in your Facebook timeline or wall (In previous or old Facebook look).

Here I will show you the way how you can set your posting privacy settings for different perception and make your profile more secure.

Steps:

1. Log in your Facebook profile

2. Go to Privacy settings from Drop-down of “HOME” menu (Down arrow icon), which you will find right top of Facebook window.

3. Then new windows will open, there you find the Control Your Default Privacy Tab, under the tab Select “Custom”.

4. Now click on the Edit Settings on Timeline and Tagging tab

5. A new window will loaded. Now from the right drop-down menu of “who can post on your timeline” you can select “No one” or “Friends”

6. If you select “No one” then no body post on your timeline except you but they can still messaged you at any time. On the other hand if you select “Friends” then only friend in your friend list can post or write on your timeline.

Restrict user from post on your Facebook timeline

PC continuously restart without showing display and keyboard response

2012-05-10T19:59:00.000+06:00

PC constantly restarts is major problem, when something is going wrong with system hardware or operating system. Most of user had faced this bitter problem at least one time in their previous computer or laptop using experience.

Few days ago I was faced same type of problem with my PC. My PC was restarting without showing any display and no keyboard power. My operating system was Windows XP, 2GB RAM, Intel Dual Core Processor. First time I was worried, but I know I have the ability to solve this problem and finally I solved the problem. Below I show you how can I solved restart problem.

Steps:

1. First I checked if any short circuit in my Power or Reset Button cable in motherboard. I found no short circuit. It can simply test by tester by checking positive and ground pin of each cable connector.

2. Then I open the casing, and try to check my processor fan. I saw, processor fan also restarting with system that means cooling system of processor was OK. Then I switch off the power from electric outlet.

3. I removed my two RAM and try to find sound. I found sound so I clear RAM Slot was OK.

4. Then I clean and interchanged RAM, but still there was no solution.

5. After that I Check with only one RAM. Yes it working. Then wait for few minute and install second RAM...WOW is was OK.

N.B: If any one does not get any solution after following this instruction, then you may write to me about difficulties, I will give you further suggestions in extreme case.

Restrict user to add or remove program in your system

2012-04-16T12:05:00.000+06:00

System security concept is most popular in current days because everyone is concern with their personal privacy which raises a tendency for security. So when it related to personal computer privacy, it will get high priority.

It is bothering when you will find someone uninstall your program from computer, which you need immediate for emergency task. This will happen if you do not set password protected user login or you share same computer with others. In such situation, you can not do anything except reinstall the program again. But for some software or program some saved settings and preference will also remove if it uninstall once.

To avoid this situation you can restrict user to uninstall or install program from add/remove program icon of control panel. I will describe below step by step process how to restrict user from remove or uninstall your programs.

Steps:
1. Go to “RUN” from “START” menu then type “gpedit.msc”
2. A new window will open; click on plus sign (+) of User Configuration, then follow the tree Administrative Template->Control Panel->Add or Remove Program.
3. An Expand window will appear in right panel.
4. Double click on “Remove Add or Remove Programs” and select “Enable” to restrict user from accessing Add or Remove Programs in Control Panel.

Add or Remove program in your system

5. Then go to “RUN” and type “gpupdate” to update your group policy.
6. Now when a user click on “Add/Remove Program” in control panel a message will appear “Add or Remove Program has been restricted. Please check with your administrator”.

Settings to allow or hide Facebook post on Timeline

2012-03-12T14:29:00.000+06:00

In Facebook timeline new feature supports allow or hide your post on timeline. This feature is very useful when you need privacy for your posting. By this feature you can decide which timeline posts are visible in your timeline and which are hidden.

This situation arises after few days of your posting when you think that you previous writings must not show in your profile. Then you need to hide it from others.

There is another option which is delete post. If you delete a post it will permanently removed, but it may required later. Then you can not retrieve it. But if you hide it, then you can retrieve it very easily whenever necessary.

Here I describe steps to show or hide posting in timeline:-

1. Login in to your Facebook profile.
2. Click on Activity Log button (Activity Log Button is Right bottom side of your cover image).
3. A new window will open, now Select "All/Your Post/Others Post" from drop-down (Right upper side of the page).
4. You will see all Activity in descending order of time (Recent to oldest). Now Select your desire activity or post and Click on Circle (Top right corner of your activity).
5. Now Select Allowed on Timeline from drop-down.

Similarly, if you want to hide activity from timeline, you select "Hide from Timeline" in step no 5.

Note: If others will comments on your timeline, then you will find only delete option there and you can not find allow or hide option in drop down.

Allow or Hide Facebook post on Timeline

Facebook Changes all Facebook Fan Pages Design

2012-03-05T10:50:00.000+06:00

Facebook, the world famous social media site connect people together. Here people can find their mates, friends, colleague and share their feelings, picture, video with others. Facebook also introduce Facebook page to create Fan page, Product marketing page, company or organization page, community page etc.

There are many type of page regarding their uses and perspective. But objective to create Facebook page is common that is connect with people and introduce about us. Fan page is for famous artist, musician, player etc. where they share their updates and picture with their fan. Similarly if the page creates for any organization or company, their employee and well wishers can get any new information about the company or organization and share their personal opinion.

The most common thing for Facebook page is “Like” when someone wants to be member of any specific page, he just need to click on like of that page. Then he will get all updates from that page and can comments on page timeline or wall.

In Facebook page, administrator, who create the page have all access to modify any internal matter. There is good news for all page admin because Facebook authority has decide to change the look of all Facebook pages from March 30, 2012 and onward.

The new page design is finalize by Facebook authority and you can Preview your page now to see what it looks like and try out the new features.

Its basically look like new timeline look. So if you are admin of Facebook Page you may try on it and if you publish it you can't rollback to old view as like Facebook timeline.

Operating system, a resource allocator and manager

2012-03-05T10:40:00.003+06:00

Operating system acts as heart of any system and without OS system will fail. An operating system primary task is startup system by loading different drivers. On startup it allocates memory for individual process and initializes programs. It also works on hardware and devices to familiar with system. System drivers are loaded with help of operating system.

After startup loading, operating system manages available resources for running process. It ensures all processes are free of any conflict and working properly. Operating system also manages required hardware resource by sending request to specific hardware and coordinates among devices and peripherals to run the program smoothly.

When OS find any ambiguous request from any process it holds the request and wait for free space for that process to avoid worst situation. So each and every process manipulation in system is done by OS.

So, after summarize the operating system activities we can say:-

- An operating system assembles with each program which organizes hardware devices and different services for applications and manages intra-connectivity and inter-connectivity among processes to handle all related request without any clash.

- Operating system also distributes available resource to applications with no collusion. It works as resource manager and sole distributor of application resources. So resource allocation is another major task of any OS.

- It also schedules job of CPU. CPU scheduling involves decision taken by CPU which request will be served and it is continuous process. If more than one application needs for same resource at the same time, then operating system decides how to allocate memory and its schedule the job as priority basis.

Facebook Password change, way and techniques

2012-02-22T20:31:00.001+06:00

Password is most important part of any software, interface login or website user login system. Till today, password is preliminary security involve in this industry. So password is one of the security measures to authenticate and verify a user who has access permission to enter the system.

As password is an individual property for protection, it always set by user and store in database with encryption to ensure maximum protection. Like other website Facebook use password for primary option to user login verification. So we have to more serious and give more attention when set a password to prevent unauthorized login. After set password we need to change it time to time. So, it is also important to know the procedure of password changing in any system.

Here I describe steps by step techniques to change password in Facebook with illustration:-

1. Click the "Home" menu at the top right of your Facebook page.
2. Click on the drop-down menu, select Account Settings.
3. In the left pane select "General Tab".

Change Facebook Password

4. In the right pane “General Account Settings” go to Password Level click on “Edit”
5. Now enter your current password, new password, retype new password then “Save Changes”

Tips: Please apply strong password policy so that outside can not get your password. You should set you password with Alpha-numeric and at least one special character combination. It is better if character combination with at least one Caps character. Password length should not less than six character and change your password every one month for safety.

Limit user from changing system time and date in Windows OS

2012-02-12T12:17:00.000+06:00

Most of us do not concern with system date and time. But it is one of most important factor in all operating system because when all software need system date and time for any update whether it is server end or end user end.

Here we are talking about the importance of system date and time and procedure to restrict user from changing system date and time from front end or user end.

So we need to keep it intact without any unnecessary changes. If any user except can have the right to change date and time from user end, then it will fall us in deep trouble specially when we run software which take entry time input from end user end. There are also many software mechanisms which does not allow date and time difference to start up.

For above reason we do not give user access to change date and time from user end. We can limit the user from this feature. Here I show steps how we can control user access in windows operating systems.
Steps to follow:-
1. Go to "Start menu" and click "Run" Or press the “Windows Button + R” as shortcut access way.

2. Type "gpedit.msc", then press "Enter".

Restrict time and date change in Windows OS

3. A New window will open, in left Pane, click on the tree to entrance "Computer Configuration->Windows Settings->Security Settings->Local Policies->User Rights Assignment".

4. Double-click the "Change the System Time" setting on the right side of the window.

5. Click the "Add User or Group" button.

6. Type "Everyone" in the "Enter the Object Names to Select" box and click "Check Names" If you want to give only a specific user account permission to change the time, type that user account's name instead of "Everyone"

7. Click "OK" twice.

8. Go to "RUN" Type “gpupdate” to effect immediately and click OK.

9. Restart Your Computer if needed.

Hiding Control Panel objects from Control Panel in Windows OS

2012-02-05T00:55:00.000+06:00

In windows operating system, control panel is the main control window where user can control his system by simple and easy user interface. It is actually act as dashboard to manage different hardware and software. User can interact with different parameter and set personal settings for individual devices from control panel.

So it is important to decide who will get access because if you do not set it, then anyone can easily change your setting from control panel which maybe unwanted for you. In this post I will give you a solution to avoid such situation. Solution is to hide your control panel objects from the dashboard. This will help to evade such state and others can not perceive your objects icons so they do not have access of those path.

Below I describe how to hide one or multiple Control Panel items from Control Panel to secure your control panel items from others user.

Steps are as follows:-

1. Go to START menu of classic windows XP ->Click on RUN->Type "gpedit.msc", Then Enter OK.
2. A new window will open, in the left pane, we will see a Tree, and here we have to expand the tree by Clicking (+) sign.

Hide Control Panel items from Control

3. Expand or click on "User Configuration", then select "Administrative Templates" and select "Control Panel".
4. Double click on "Hide Specified Control Panel Applets" and select "Enabled".
5. Click on "Show"; in new window click "Add".
6. To hide Control Panel items from Control Panel type its name in dialog box. For example: if you type System, Windows will hide System icon from Control Panel.

Note that Group Policy will hide Control Panel items (System Properties) from Control Panel, but a professional user can type sysdm.cpl in Run dialog box and run System Properties.

Linux swap partition and swap file, definition and difference

2012-02-03T02:12:00.000+06:00

Linux is most popular open source operating system. Linux is used when we need more stable, more secure system. So when we think about server we first look at Linux for operating system due to its properties.

Linux OS setup was not easy but now a days Linux graphical interface gives it user easier installation like windows. But still it required expertise for installation specifically when different package will have to select and swap partition allocation.

Linux has two forms of swap space:
1. The swap partition
2. The swap file

Difference between swap partition and swap file

Swap Partition:

In Linux OS, Reserved disk block in the hard drive used for swapping is known as Swap Partition; no other files can be located in swap partition.

If physical memory is not sufficient amount to allocate more memory, requested by processes of application in the system, then the kernel swaps out pages which are not frequently used or unused. And it allocates memory to the required process that wants the memory instantly.

In time of Linux OS installation, we have to set the partition size two times of Ram size, which is recommended. For example if RAM size is 2GB then swap partition will be 4GB. In windows OS swap space or partition is called page file.

Swap File:

The swap file is not a common file. It’s has special nature which exist in the midst of your system and data files. Swap file free RAM space by transfer unused program to hard drive and allocate that space to currently requested program.

Creation and preparation of swap file is similar to creation of swap partition. Swap files do not require an empty partition and no need to repartition hard drive to add additional swap space.

Swap file can increase at any time proportion to request, which is another benefit of it.

This mechanism are similar to virtual memory of windows operating system.

Restore system to previous save state by using System restore tool

2012-02-02T11:44:00.000+06:00

System Restore point used in Windows OS to store saved state of system. It is one of the major troubleshooting tools when we do not have any choice without go back to previous state due to some anomalies in system or unknown behavior. In some case after install insecure software in system, it may not work as instructed and corrupt some system files that intend to system disorder. To avoid such unstable state of system we need to use the system restore tool in windows XP or Windows 7.

Here I describe below steps how to create a system restore point in Windows XP and Windows 7:-

Steps for Windows XP:

1. Close all running program one by one with ALT+F4 (Windows Shortcut).

2. Go to Start menu-> click on All Programs-> then click on Accessories-> System Tools, click on "System Restore" to open System Restore Wizard which will guide you until completion of the process.

3. Check radio button of "Create a restore point", and then click "Next".

Create a restore point

4. In "Restore point description" box, type a description for the restore point. Type a easy description so that you can find out it very easily next time. No need to add date and time because it will automatically added to your restore point.

Restore point description

5. Click “Create” button to complete the wizard for create a system restore point. But if you want to back, click “Back” or “Cancel” for cancels operation.
6. After finished click on the Close button.

Steps for Windows 7:

1. Log in As Administrator user in your system to get all privilege.
2. Right-click on My Computer icon, and then click on Properties.

My Computer ->Properties

3. A new window will open, now in the left pane, click System protection.

create or set system restore point in Windows 7

4. Click on the System Protection tab, and then click on Create.
5. In the System Protection dialog box, type a description, and then click on Create.

Cancel Facebook friend request which is made wrongly

2012-01-27T11:00:00.000+06:00

Facebook is common platform for making friends all around the world where people find friends by sending friend request. Here people intimate with each other by sharing their ideas and later on they become friend for internal communication.

So public access and friend access must be different and friends get priority over personal settings. And privacy for friends is not similar to public. We are flexible in sharing with friends rather with public.

We must careful to select friend (except our childhood, classmates, colleagues who are known to us) and there is no need to make any unknown person friend at first time. We need some verification and understanding to make friends in Facebook because there are many fake people who are not real as they stated in their profile.

So, sometimes we need to cancel friend request which is already made wrongly or unintentionally. Facebook support Cancel friend request feature, but this feature works until he/she accepts or rejects your request because if he/she accepts your request then you need to unfriend him/her. You can read How to unfriend to unfriend someone. But If he/she doesn’t respond then you can cancel your friend request by following steps:-

1. Go to that person's profile or timeline whom you already sent a friend request accidentally and now you want to revert.

Cancel Facebook Friend request

2. Click on the "Friend Request Sent" button at the top right of that person page.

3. Click "Cancel Request" from the dropdown menu to complete cancel request.

Note: You may not get any notification message except an activity updates on your timeline for cancel the friend request.