Stylish Rss Feed, Facebook, Twitter, Email Subscription Widget to Blogger

Posted by Pcworldtutorial Posted on 6:28 AM with No comments

Do you want to add Excellent/Stylish Rss Feed, Facebook, Twitter, Google Plus, Email Subscription Widget to Blogger? By this widget visitor can subscribe to your blog and get update easily. To do it just follow the below steps:

1. Login to your Blogger account.

2. Click on Dashboard >> Layout.

3. Click on Add a Gadget.

4. Select HTML/Javascript widget.

5. Paste the following code and Save.

Redhat mail server bangla tutorial

Posted by Pcworldtutorial Posted on 3:02 AM with No comments

Red Hat Mail Server (Using Postfix and Dovecot)

Couple of weeks ago, a friend asked me how to setup a Mail Server using his Fedora Core 4. Unfortunately, I got a flu and not able to help him by that time.
Now that I’m feeling better, let me post this quick guide how to set this up.
Note that I’m using CentOS 4.1 (the equivalent of RHEL) in setting this up since I never use FC for any server setup. Nevertheless, I presume this setup will also work in FC4 and to all Red Hat equivalent distro as significant settings are applied to Postfix and Dovecot, not to the OS itself.
Minimal Installation:
You got already a running Linux system. A minimal type of installation is recommended – no X-Window, no service selected – just the bare, head-less Linux that allows you to login; having a basic network setup that will allow you to download and install services as you need it. I always recommend not installing any packages and don’t run any service that you will not be using.
Security:
Securing a Linux box is a very scary-kind of topic, I don’t want to talk about here at this time in details. But just a quick note, start thinking of securing your box physically – its odd sometimes we overlook this obvious one – if someone press Ctrl+Alt-Del, reboot and boot from CD, go to the BIOS setup, unplug the power itself, etc. And of course since you will be running a server, this box will definitely be online. Once your box online, you’re not secured anymore – endless possibility can now happened. Good start is to check the open ports using netstat –vat and you will be surprise how many ports are open. If you are not using it; you better close it. Oh yeah, don’t use unsecured connections like telnet; use ssh instead. Securing a box is truly a challenge – it is a learning process and a cycle of identifying possible insecurities, patching it — cycle must goes on, and it should never stop.
Updates:
Before we start, I recommend you make sure your present box is updated. Use the yum command.



# yum update

Download and Install:
Check if both Postfix and Dovecot is not yet installed in your system.



# rpm –q postfix

# rpm –q dovecot

If you installed your box as Minimal, for sure both postfix and dovecot not yet installed. Let’s download and install both Postfix and Dovecot.



# yum install postfix

# yum install dovecot

Sendmail and system-switch-mail
By default, sendmail is installed to your system and serves as the default MTA. Since we want to use postfix instead of sendmail, let’s get rid of it! You can use system-switch-mail to do that easily.
Check if it is installed



# rpm –q system-switch-mail

If not installed, install it



# yum install system-switch-mail

And run system-switch-mail



# system-switch-mail

And select Postfix as your default MTA.
Goodbye Sendmail
To finally get rid of sendmail in to your system, go and completely erase it!



# rpm –e --nodeps sendmail

Setting up Postfix
Enough for the intro; let’s do now Postfix setup.
1. Go to /etc/postfix directory



# cd /etc/postfix

2. Copy the original main.cf to another file



# cp main.cf main.cf-bak-orig

We copy the original main.cf file to a new file named main.cf-bak-orig in case we want to go back to the previous configuration. This is always my practice, that any modification I’m doing; I always do a backup first. Very handy in case something goes wrong.
3. Clear the existing main.cf file



# cat /dev/null > main.cf

This command will quickly clear the content of you main.cf file.
4. Edit and add the following lines to main.cf



myhostname = mail.example.com

mydomain = example.com

myorigin = $mydomain

mydestination = $myhostname localhost.$mydomain localhost $mydomain

relay_domains =

home_mailbox = Maildir/

Here I assume Internet domain name is “example.com”. Users are configured to send mail as“user@example.com”, we call this machine by the name of “mail.example.com”, and “home_mailbox = Maildir/" for qmail-style delivery.
5. Check Postfix



# postfix check

6. Reload Postfix



# postfix reload

Setting up Dovecot
Dovecot is very easy to setup and easy to configure. In fact, the last time I setup Dovecot in our local mail server I just simply make sure that under protocols, imap and pop3 are there (protocols = imap pop3). Surprisingly nothing more I did and it works out-of-the-box. Only one thing you may need to get the authentication works – but hey if your users are in /etc/passwd there’s hardly anything you have to do.
Don’t forget to restart dovecot after you edited and saved /etc/dovecot.conf



# /etc/init.d/dovecot restart

Firewall Configuration
Make sure you open the SMPT (tcp/25), POP3 (tcp/110), and IMAP (tcp/143) ports in your iptables.
# vi /etc/sysconfig/iptables



-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 25 -j ACCEPT

-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 110 -j ACCEPT

-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 143 -j ACCEPT

Restart iptables



# /etc/init.d/iptables restart

That’s all folks! With your choice of mail clients, your users can now send and receive emails.
Optionally, you can install SquirrelMail for your web-based email.
Just download SquirrelMail



# yum intall squirrelmail

Apache and PHP will be automatically downloaded and installed as well. Why not add MySQL so that you can do more things? Here’s how to do it, in case you want.
Edit some settings in SquirrelMail



# /usr/share/squirrelmail/config/conf.pl

Start Apache



# /etc/init.d/httpd start

Conclusion
This is a general very quick guide that will guarantee you a working Mail Server Setup in a latest Red Hat environment. Other optimization and enhancement can be done as your specific requirements arise.

More than 100 Keyboard Shortcuts

Posted by Pcworldtutorial Posted on 2:49 AM with No comments

Microsoft Windows)
1. CTRL+C   (Copy)
2. CTRL+X (Cut)
3. CTRL+V   (Paste)
4. CTRL+Z    (Undo)
5. SHIFT+DELETE
6. CTRL while dragging an item
7. CTRL+SHIFT while dragging an item
8. F2 key (Rename)
10. CTRL+RIGHT ARROW (Move the insertion point to the beginning of the next word)
11. CTRL+LEFT ARROW (Move the insertion point to the beginning of the previous word)
12. CTRL+DOWN ARROW (Move the insertion point to the beginning of the next paragraph)
13. CTRL+UP ARROW (Move the insertion point to the beginning of the previous paragraph)
14. CTRL+SHIFT with any of the arrow keys (Highlight a block of text)
SHIFT with any of the arrow keys (Select more than one item in a window or on the desktop, or select text in a document)
15. CTRL+A (Select all)
16. F3 key (Search for a file or a folder)
17. ALT+ENTER (View the properties for the selected item)
18. ALT+F4 (Close the active item, or quit the active program)
19. ALT+ENTER (Display the properties of the selected object)
20. ALT+SPACEBAR (Open the shortcut menu for the active window)
21. CTRL+F4 (Close the active document in programs that enable you to have multiple documents opensimultaneously)
22. ALT+TAB (Switch between the open items)
23. ALT+ESC (Cycle through items in the order that they had been opened)
24. F6 key (Cycle through the screen elements in a window or on the desktop)
25. F4 key (Display the Address bar list in My Computer or Windows Explorer)
26. SHIFT+F10 (Display the shortcut menu for the selected item)
27. ALT+SPACEBAR (Display the System menu for the active window)
28. CTRL+ESC (Display the Start menu)
29. ALT+Underlined letter in a menu name (Display the corresponding menu) Underlined letter in a command name on an open menu (Perform the corresponding command)
30. F10 key (Activate the menu bar in the active program)
31. RIGHT ARROW (Open the next menu to the right, or open a submenu)
32. LEFT ARROW (Open the next menu to the left, or close a submenu)
33. F5 key (Update the active window)
34. BACKSPACE (View the folder onelevel up in My Computer or Windows Explorer)
35. ESC (Cancel the current task)
36. SHIFT when you insert a CD-ROMinto the CD-ROM drive (Prevent the CD-ROM from automatically playing)
Dialog Box – Keyboard Shortcuts
1. CTRL+TAB (Move forward through the tabs)
2. CTRL+SHIFT+TAB (Move backward through the tabs)
3. TAB (Move forward through the options)
4. SHIFT+TAB (Move backward through the options)
5. ALT+Underlined letter (Perform the corresponding command or select the corresponding option)
6. ENTER (Perform the command for the active option or button)
7. SPACEBAR (Select or clear the check box if the active option is a check box)
8. Arrow keys (Select a button if the active option is a group of option buttons)
9. F1 key (Display Help)
10. F4 key (Display the items in the active list)
11. BACKSPACE (Open a folder one level up if a folder is selected in the Save As or Open dialog box)
Microsoft Natural Keyboard Shortcuts
1. Windows Logo (Display or hide the Start menu)
2. Windows Logo+BREAK (Display the System Properties dialog box)
3. Windows Logo+D (Display the desktop)
4. Windows Logo+M (Minimize all of the windows)
5. Windows Logo+SHIFT+M (Restorethe minimized windows)
6. Windows Logo+E (Open My Computer)
7. Windows Logo+F (Search for a file or a folder)
8. CTRL+Windows Logo+F (Search for computers)
9. Windows Logo+F1 (Display Windows Help)
10. Windows Logo+ L (Lock the keyboard)
11. Windows Logo+R (Open the Run dialog box)
12. Windows Logo+U (Open Utility Manager)
13. Accessibility Keyboard Shortcuts
14. Right SHIFT for eight seconds (Switch FilterKeys either on or off)
15. Left ALT+left SHIFT+PRINT SCREEN (Switch High Contrast either on or off)
16. Left ALT+left SHIFT+NUM LOCK (Switch the MouseKeys either on or off)
17. SHIFT five times (Switch the StickyKeys either on or off)
18. NUM LOCK for five seconds (Switch the ToggleKeys either on or off)
19. Windows Logo +U (Open Utility Manager)
20. Windows Explorer Keyboard Shortcuts
21. END (Display the bottom of the active window)
22. HOME (Display the top of the active window)
23. NUM LOCK+Asterisk sign (*) (Display all of the subfolders that are under the selected folder)
24. NUM LOCK+Plus sign (+) (Display the contents of the selected folder)
25. NUM LOCK+Minus sign (-) (Collapse the selected folder)
26. LEFT ARROW (Collapse the current selection if it is expanded, or select the parent folder)
27. RIGHT ARROW (Display the current selection if it is collapsed, or select the first subfolder)
Shortcut Keys for Character Map
After you double-click a character on the grid of characters, you can move through the grid by using the keyboard shortcuts:
1. RIGHT ARROW (Move to the rightor to the beginning of the next line)
2. LEFT ARROW (Move to the left orto the end of the previous line)
3. UP ARROW (Move up one row)
4. DOWN ARROW (Move down one row)
5. PAGE UP (Move up one screen at a time)
6. PAGE DOWN (Move down one screen at a time)
7. HOME (Move to the beginning of the line)
8. END (Move to the end of the line)
9. CTRL+HOME (Move to the first character)
10. CTRL+END (Move to the last character)
11. SPACEBAR (Switch between Enlarged and Normal mode when a character is selected)
Microsoft Management Console (MMC)
Main Window Keyboard Shortcuts
1. CTRL+O (Open a saved console)
2. CTRL+N (Open a new console)
3. CTRL+S (Save the open console)
4. CTRL+M (Add or remove a console item)
5. CTRL+W (Open a new window)
6. F5 key (Update the content of all console windows)
7. ALT+SPACEBAR (Display the MMC window menu)
8. ALT+F4 (Close the console)
9. ALT+A (Display the Action menu)
10. ALT+V (Display the View menu)
11. ALT+F (Display the File menu)
12. ALT+O (Display the Favorites menu)
MMC Console Window Keyboard Shortcuts
1. CTRL+P (Print the current page or active pane)
2. ALT+Minus sign (-) (Display the window menu for the active console window)
3. SHIFT+F10 (Display the Action shortcut menu for the selected item)
4. F1 key (Open the Help topic, if any, for the selected item)
5. F5 key (Update the content of all console windows)
6. CTRL+F10 (Maximize the active console window)
7. CTRL+F5 (Restore the active console window)
8. ALT+ENTER (Display the Properties dialog box, if any, for theselected item)
9. F2 key (Rename the selected item)
10. CTRL+F4 (Close the active console window. When a console has only one console window, this shortcut closes the console)
Remote Desktop Connection Navigation
1. CTRL+ALT+END (Open the Microsoft Windows NT Security dialog box)
2. ALT+PAGE UP (Switch between programs from left to right)
3. ALT+PAGE DOWN (Switch between programs from right to left)
4. ALT+INSERT (Cycle through the programs in most recently used order)
5. ALT+HOME (Display the Start menu)
6. CTRL+ALT+BREAK (Switch the client computer between a window and a full screen)
7. ALT+DELETE (Display the Windows menu)
8. CTRL+ALT+Minus sign (-) (Place a snapshot of the active window in the client on the Terminal server clipboard and provide the same functionality as pressing PRINT SCREEN on a local computer.)
9. CTRL+ALT+Plus sign (+) (Place asnapshot of the entire client window area on the Terminal server clipboardand provide the same functionality aspressing ALT+PRINT SCREEN on a local computer.)
Microsoft Internet Explorer Keyboard Shortcuts
1. CTRL+B (Open the Organize Favorites dialog box)
2. CTRL+E (Open the Search bar)
3. CTRL+F (Start the Find utility)
4. CTRL+H (Open the History bar)
5. CTRL+I (Open the Favorites bar)
6. CTRL+L (Open the Open dialog box)
7. CTRL+N (Start another instance of the browser with the same Web address)
8. CTRL+O (Open the Open dialog box,the same as CTRL+L)
9. CTRL+P (Open the Print dialog box)
10. CTRL+R (Update the current Web page)
11. CTRL+W (Close the current window)

How to Hide IP Address in Comodo Dragon without Using Software

Posted by Pcworldtutorial Posted on 8:11 PM with 4 comments

How to change or hide ip Address in Comodo Dragon without Using Software? Sometime we need to change ip address for online security, as there are several websites that want your personal information. One way to protect your online privacy is to surf by changing your ip address while using websites that you don't trust. Here I show to change ip address in Comodo Dragon without using software. To do it just follow the below steps :-

1. Click the Comodo Dragon Logo on the top off left side.

2. Than select Options >> Under the Hood >> Network.

3. Check Use this proxy server and keep IP Address with port.

How to Make Blogger Blog Post Title SEO Friendly

Posted by Pcworldtutorial Posted on 8:07 PM with 4 comments

Do you want to make your blogger post title seo friendly? If your post title be seo friendly you will get more visitor from search engine. Post Title increase visitor so that improve your page rank. But the blogger templates are not search engine optimized that is they are not simply compatible to boost up your page rank. Do make your blogger template post title seo friendly just fulfill below steps:

1. Login to your Blogger Account.

2. From Dashboard >> Tamplate >> Edit HTML >> Proceed.

3. Don't forget to backup your template first.

4. Check the Expand Widget Templates box.

5. Then search for this tag <data:blog.pageTitle/>

Normally it is located in "head" section.

6. Replace the above code with the following code:

<b:if cond='data:blog.pageType == "index"'>
<title><data:blog.title/></title>
<b:else/>
<title><data:blog.pageName/></title>
</b:if>

I hope this trick will help you to drive more traffic to your Blogs or Websites. It also increases SEO of your Blogger Blog. Post a comment if you have any query. Thanks a lot !!!!

Pcworldtutorial

Stylish Rss Feed, Facebook, Twitter, Email Subscription Widget to Blogger

Redhat mail server bangla tutorial

Red Hat Mail Server (Using Postfix and Dovecot)

More than 100 Keyboard Shortcuts

How to Hide IP Address in Comodo Dragon without Using Software

How to Make Blogger Blog Post Title SEO Friendly

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