In this tutorial, I will explain how to update cPanel License key of a server / vps. cPanel license key can be updated from SSH. You need to update your server license key when you have a new licence key, or you want to upgrade from trail version to paid version.
Login to your server as root and via SSH and run following command
/usr/local/cpanel/cpkeyclt
Done!!
Now try to login in WHM using URL: http://server-ip:2086 OR http://server-ip/whm
For security reason, it is recommended that you disable directory listings / indexing on your server. Apache default configuration comes with this feature enabled but its always a good idea to get it disabled unless you really need it.
When this option is enabled, user can see the list of files / folder of a directory when no index file is present.
With Apache listings / indexing option disabled, user will not be able to see content of a directory in absence of a index file.
Here is how you can disable this on a cPanel server.
Login to your server WHM as root.
Navigate to:
WHM Main >> Service Configuration >> Apache Configuration >> Global Configuration
Under Directory ‘/’ Options >> uncheck Indexes >> Save >> Restart Apache
Done!!
MySQLTuner is great script to optimize mysql database of a server. It reports a large number of statistics and settings from your MySQL database engine, and then offers general recommendations to improve performance.
To run MySQLTuner on a serve / VPS with cPanel, run following command in SSH
/usr/local/cpanel/bin/mysqltuner.pl
If phpMyAdmin is not working properly on your cPanel server, like blank phpmyadmin page. In such case, you should consider updating phpmyadmin.
Login to your server via SSH as root user. Now run following command:
/usr/local/cpanel/bin/updatephpmyadmin --force
Note:
This works on a cPanel server / VPS only.
When you try to add / create an addon domain in cPanel, but you get following error message:
The server administrator has disable creation of parked/addon domains that resolve to other servers. This is done for security reason.
Login in root WHM and navigate to:
And set this option to ON.
Done!!!
It is highly recommended to keep Allow Remote Domains to Off for security reason. So, after adding your addon domain, set this option back to Off
If you don’t have root access of server, please contact your hosting provider. Send them your addon domain, and your cPanel username. They should add domain name in your account.
When you run cPanel Security Advisor, and if you get kernel out of date warning message, you need to update server kernel. The warning message may be something like below:
Updating from WHM may not solve this problem. This tutorial explains how to update kernel and solve this warning.
Login to your server as root via SSH and run following command:
yum update
Accept kernel upgrade when asked. Reboot server after update.
Done!!
This tutorial explains how you can optimize your cPanel powered website by compressing content.
Apache will automatically compress content when that content is requested by visitors. And will send compressed content to browser. Thus it will reduce load time and optimize your website. This feature is available in Apache 2.0 and later.
Login in cPanel of your website and navigate to:
Here you can enable this feature. By default it is disabled.
This features requires mod_deflate Ask your hosting provider to enable/ install mod_deflate on the server.
If you are selling shared hosting or reseller hosting on your server, you must set a limit of number of mails that a website / domain / account can send per hour.
You can set this limit easily on a cPanel server. Please follow below steps.
Login in WHM as root user and navigate to:
cPanel offers you to schedule backup and retain backup of server and accounts. But if you need to run backup manually, you can do it from SSH. Login to your server as root via SSH and run following command.
/usr/local/cpanel/bin/backup
If the backup is up-to-date, you can force to run backup using below command
/usr/local/cpanel/bin/backup --force
/scripts/cpbackup
If the backup is up-to-date and you wish to run backups anyway, use:
/usr/local/cpanel/scripts/cpbackup --force
cPanel default backup system may fail to create and save backup of your server and send you following message:
Any old backup process is still running in background on the server.
Login to your server as root via SSH and execute following command
/usr/local/cpanel/bin/backup --force
Most probably it will show you following type message:
Backup process currently running. Pid: 5378 Backup log file: /usr/local/cpanel/logs/cpbackup/1377934812.log
We need to kill the current running backup process. Note the Pid from above and run following command. Change xxxx to Pid number that you have got from above.
kill -9 xxxx
cPanel backup should now run normally. You can force to start a new fresh backup process using below command:
/usr/local/cpanel/bin/backup --force
