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What is Computer ? Computer is an electronic data processing machine which accepts input data from the user, stores the input data in its memory, processes the input data according to given instructions and finally gives us the desired output. What are Data ? Data are the raw facts and figures in the form of bits and bytes. What is information ? Information is processed data. Components of Computer Computer has two components. Such as: Hardware Software What is Hardware ? All the parts of computer that we can see and touch are known as hardware. Example - Keyboard, Mouse, Monitor, etc. What is Software ? A set of statements written in a programming language is known as a instruction. A set of instructions is known as a program. A set of programs is known as a software. Example - Microsoft Windows, Adobe Photoshop, Typing Master, etc. Classification of Computers Computers can be classified into three categories. Those are: According to type of dat...
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How to Install cPanel & WHM on CentOS/RHEL & CloudLinux

WHM/cPanel is the most popular web hosting control panel for Linux operating systems. Using WHM/cPanel we can easily manage our web hosting environment without having more technical skills. If you have basic knowledge of hosting with networking you can manage any web hosting server using WHM/cPanel.

WHM/cPanel is basically divided into two parts WHM and cPanel. WHM section is used for managing your system, hosting accounts and maintenance of system where cPanel is known as single hosting account. This article will help you to install cPanel and WHM on CentOS/RHEL and CloudLinux operating systems.

1. Minimum System Requirements



Before installing cPanel and WHM on your system make sure to fulfill following requirements


  • Minimum of 1GB RAM

  • 20 GB Harddisk

  • Perl must be installed

  • CentOS 7/6/5 or RHEL 6/5 or CloudLinux 6/5



For more details visit WHM/cPanel system requirements url.

2. Setup Proper Hostname



Before installing WHM/cPanel on your system, make sure to set a proper fully qualified hostname for your system.

# hostname  webhost.example.com


Now edit /etc/sysconfig/network to set hostname permanently and update hostname entry like below

HOSTNAME=webhost.example.com


Now edit /etc/hosts to point hostname to local system ip. For example local system ip is 192.168.1.100, Do the following entry in /etc/hosts file.

192.168.1.100 webhost.example.com


3. Disable SELinux



Now make sure to disable selinux on your system before starting cPanel and WHM installation. To disable selinux execute following command.

# setenforce 0


Now edit /etc/sysconfig/selinux and update following entry for disabling SELinux permanently.

SELINUX=disabled


4. Install WHM/cPanel



Your installation preparation has been completed for WHM/cPanel. Now execute one by one following commands to install WHM/cPanel on your system.

# cd /home
# curl -o latest -L http://httpupdate.cpanel.net/latest
# sh latest


Installation processes will take more time (Approx 1 hour or more) as per your network speed and operating system speed. After completing installation your will get output like below.

2015-05-28 12:23:48  183 ( INFO): cPanel install finished in 66 minutes and 9 seconds!
2015-05-28 12:23:48  684 ( INFO): Congratulations! Your installation of cPanel & WHM 11.48 is now complete. The next step is to configure your server.
2015-05-28 12:23:48  684 ( INFO):
2015-05-28 12:23:48  684 ( INFO): Before you configure your server, ensure that your firewall allows access on port 2087.
2015-05-28 12:23:48  684 ( INFO): On RHEL, CentOS, and CloudLinux systems, execute /scripts/configure_firewall_for_cpanel to accomplish this.
2015-05-28 12:23:48  684 ( INFO):
2015-05-28 12:23:48  684 ( INFO): After ensuring that your firewall allows access on port 2087, you can configure your server.
2015-05-28 12:23:48  684 ( INFO):
2015-05-28 12:23:48  684 ( INFO): 1. Open your preferred browser
2015-05-28 12:23:48  684 ( INFO):
2015-05-28 12:23:48  684 ( INFO): 2. Type https://192.168.1.100:2087 in the address bar
2015-05-28 12:23:48  684 ( INFO):
2015-05-28 12:23:48  684 ( INFO): 3. Enter the word root in the Username text box
2015-05-28 12:23:48  684 ( INFO):
2015-05-28 12:23:48  684 ( INFO): 4. Enter your root password in the Password text box
2015-05-28 12:23:48  684 ( INFO):
2015-05-28 12:23:48  684 ( INFO): 5. Click the Login button
2015-05-28 12:23:48  684 ( INFO):
2015-05-28 12:23:48  684 ( INFO): Visit http://go.cpanel.net/whminit for more information about first-time configuration of your server.
2015-05-28 12:23:48  684 ( INFO):
2015-05-28 12:23:48  684 ( INFO): Visit http://support.cpanel.net or http://go.cpanel.net/whmfaq for additional support
2015-05-28 12:23:48  684 ( INFO):
2015-05-28 12:23:48  684 ( INFO): Thank you for installing cPanel & WHM 11.48!


5. Post Installation of cPanel & WHM



After completing WHM/cPanel installation on your system successfully you can access WHM on 2086 & 2087(with ssl) and cPanel accounts on 2082 & 2083(with ssl) ports. Now login to your WHM account and completed post installation instructions ans per your required configuration. You can access WHM using root account and their password at following urls.

https://webhost.exmaple.com:2087/


Login with your root account credentials and complete following six steps.


  • Accept Linux Agreement

  • Setup networking

  • Set Up IP Addresses

  • Select nameserver (default is bind)

  • Setup additional services like FTP, Mail

  • Enable or Disable disk quota



6. Activate cPanel & WHM License



As the WHM/cPanel is available with commercial license, So you need to purchase a license (based on ip) from cPanel or its third-party sites.
When you purchased a commercial license for your cPanel server activate is using following command.

# /usr/local/cpanel/cpkeyclt


To verify your license visit cPanel license verification url and enter public ip your server.

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