I downloaded an ebook from internet. The ebook in .chm extension. I can’t read it in my linux machine.

So, i just install a software called xCHM to read .chm file.  xCHM can show the content tree if one is available, print pages, change font face and size, remember bookmarks, display a searchable index, and search for words in the current page and the whole book.

How to install it? Just follow the following steps:-

Fedora/Centos

a) Login as root user

su -

b) Type the following command to install it

yum install -y xchm

After that, you try to double click the .chm file, you should able to open it with xchm program.

phpMyAdmin is an open source tool written in PHP intended to handle the administration of MySQL over the World Wide Web. It can perform various tasks such as creating, modifying or deleting databases, tables, fields or rows; executing SQL statements; or managing users and permissions. (Info from http://www.phpmyadmin.net)

How to install phpmyadmin? Before you install phpmyadmin, you need to install your LAMP 1st. Once you install, just follow below steps:-

1. $ su -
2. # cd /var/www/html
3. # wget http://downloads.sourceforge.net/project/phpmyadmin/phpMyAdmin/3.3.0-rc1/phpMyAdmin-3.3.0-rc1-all-languages.zip?use_mirror=nchc
4. # unzip phpMyAdmin-3.3.0-rc1-all-languages.zip
5. # mv phpMyAdmin-3* phpmyadmin
6. # cd phpmyadmin
7. # cp config.sample.inc.php config.inc.php
8. # vi config.inc.php
   :
   $cfg['Servers'][$i]['auth_type'] = ‘http‘; # default is cookies
9. Restart Apache
   # service httpd restart

Run your phpmyadmin by following link:

http://your.domain.com/phpmyadmin/ or http://ipaddress/phpmyadmin/

phpmyadmin fail to start?

When you type above link, your phpmyadmin fail to start and show following error message:

PHP 5.2+ is required

To solve this issue, you need to upgrade your PHP 5.1 to PHP 5.2. But, on CentOS is no simple ‘yum’ upgrades to update your PHP 5.1.6 to PHP 5.2.6. you need to add Repository to your yum

Just follow below steps:

nano -w /etc/yum.repos.d/utterramblings.repo
... and then paste the following into the editor:
[utterramblings]
name=Jason's Utter Ramblings Repo
baseurl=http://www.jasonlitka.com/media/EL$releasever/$basearch/
enabled=1
gpgcheck=1
gpgkey=http://www.jasonlitka.com/media/RPM-GPG-KEY-jlitka

After that, just save it.

Now you should able to upgrade your PHP.

I setup MySQL Server on CentOS few month ago, but i forgot the root password for MySQL. How to reset the password?

You can recover MySQL database server password with following steps.

Step # 1: Stop the MySQL server process.

service mysqld stop

Step # 2: Start the MySQL (mysqld) in safe mode with the –skip-grant-tables option

mysql_safe -skip-grant-tables-u root &

Step # 3: Connect to mysql server as the root user.

mysql -u root

Step # 4: Setup new mysql root account password.

UPDATE mysql.user SET Password=PASSWORD('NEW-PASSWORD') WHERE User='root';

Step # 5: Flush Privileges

FLUSH PRIVILEGES;

Step # 5: Quit MySQL command line

quit

Step # 6 Restart MySQL deamon

service mysqld restart

Step # 7 Log in as root to test the root password

mysql -u root -p

Quick Look is a quick preview feature which was introduced in Mac OS X 10.5 Leopard. Quick look allow us to preview the files, multiple page documents and video with opening them. You just have to select the files in the Finder and press the Space bar to preview it.

Today, i will going to show you a trick on Quick look. This trick called X-Ray Folder. This feature is hidden by default. We need to enable it through Terminal. Normally when we Quick Look on folder, it will show the regular folder icon. But if you enable X-Ray Folder feature,  the folder icon will be semi-transparent, with previews of the folder’s contents visible in the Quick Look window.

Let see the screen shoot without enable X-Ray Folder

Screen shoot with enable X-Ray Folder

How to enable X-Ray Folder

1st – Quit the Finder via Activity Monitor

After that, launch your Terminal and enter this command:

defaults write com.apple.finder QLEnableXRayFolders 1

Done

How to turn off X-Ray Folder

Just repeat above steps and enter the same command with change 1 to 0 in your Terminal:

defaults write com.apple.finder QLEnableXRayFolders 0

Microsoft have launch Windows 7 Release Candidate (RC) testing. The purpose of this release is to let user trying out pre-release software
click here to download Microsoft Windows 7

You will get a product key by fill up the form on Microsoft Windows 7 web site.

I think Apple Mail user might experience problem in downloading email messages from POP server even the mail account setting is correct. The only problem is your email account was offline. Your apple mail will show like screen as show as below

Apple Mail must be in online mode to access the mail server. If you’ve made changes to your folders in Apple Mail, they will be applied when you use online mode. Likewise, if you have messages queued for delivery in your Outbox, they will be sent when you use online mode.

To use online mode in Apple Mail, do the following:

1. Log in to Apple Mail. Make sure you have an active Internet connection.

2. Right click on the mailbox

3. Click on Take  “POP Account” Online

4. After that, Click on Get Mail button. Now you should able to receive email from your mail server.

Symptoms

Your Apple notebook’s display has no picture after you turn it on.

You don’t hear any fan or hard disk activity sounds after you turn the computer on, and the sleep light doesn’t turn on.

The computer doesn’t seem to have any power when you try to turn it on.

Resolution

• If you’re running on battery power, check to see if your computer’s battery needs to be recharged. Press the small button on the battery. You should see somewhere between one and four lights indicating the battery’s level of charge. If you see just one light blinking, the battery needs to be recharged. Run the computer from the adapter in order to recharge the battery.
• Unplug the power adapter from the electrical outlet and from the MacBook or MacBook Pro. Wait one minute. Plug it back into the wall first, then to the MacBook or MacBook Pro. Make sure the electrical outlet is working by plugging in another device (such as a lamp). When you plug the adapter back into the computer, the power adapter LEDs should light up green or amber.
• Make sure you are using the adapter that was designed for your computer.
• Disconnect any devices connected to the computer including printers, hubs, and third-party keyboards or mice, and test the computer again by trying to turn it on.
• If you recently installed additional memory, make sure it is correctly installed and is compatible with your computer. Remove the new memory to see if the computer starts up properly without it.
• Reset the SMC by removing the AC power, removing the battery and then holding down the power button for five seconds.

1. From the Apple menu, select System Preferences... . When the System Preferences window opens, from the View menu, select Network. 
2. To add a VPN virtual network interface, click on + (the plus sign) at the bottom of the services list. Note: If you can’t click + (the plus sign), click the padlock icon next to “Click the lock to make changes”. Enter the password for your account on your Mac, and then click OK.
   
3. Choose VPN from the Interface pop-up menu. On the VPN Type, select PPTP VPN protocol. After that, click “create” button.
   
4. To configure VPN setting, 1st enter your VPN server address and VPN account name which provided by our sys admin
   
5. Click on the Authentication Settings button. A pop-up menu will prompt out to allow you enter the VPN password which provided by our sys admin. In the “User Authentication” section of the sheet that appears, make sure the button next to “Password” is checked, and then enter your Password. After that, click on “OK” button.
   

How to connect VPN

When you want to connect VPN, you can either choose the VPN configuration from the VPN menu or select VPN connection in the connection list and click the “Connect” button.

VPN Menu

Connection List

“Send me a pdf pdq,” your headhunter tells you. And you smile. Because you know that, thanks to Mac OS X, you can create and dispatch a PDF in seconds. Here’s how:

1. Choose Print from the File menu.
2. Click the drop-down PDF menu and choose Mail PDF.
3. Enter a subject, an email address, and click Send.

What applications let you do this? All of them. Creating PDFs — and emailing them — is a feature built into Mac OS X, so whether you’re surfing the web in Safari, writing a business plan in Pages, honing a budget in Numbers, working on a presentation in Keynote, or updating your resume, you can create a PDF and email it quickly and easily.

(Article from Apple)

1. Firstly, access the Apple menu by single-clicking on the Apple logo in the top left hand corner of the screen. The menu will appear.
2. Move your mouse down and click “System Preferences”. Doing this will open the System Preferences application.
3. On the top row of the System Preferences window you will see a flag with “International” written beneath it. Click on this.
4. You will now see a long list of languages. Ignore these, and click on “Input Menu”, on the top right.
5. This is the keyboard layout window. Scroll down using the bar on the right, and when you have found your desired language, click on the check box on the left to activate it.
6. Close System Preferences by clicking the button on the very top left of the window.
7. That’s it!