ServerBuddies Support Blog

How can I setup secondary DNS server.

1. You can use two of the IP’s assiged to your server.

2. You can setup an additional linux based server and install the free, “DNS Only” version of cPanel.

Latest Installer for DNSONLY servers.

http://layer1.cpanel.net/cpanel-dnsonly-install.sea

This script can also be downloaded as http://httpupdate.cpanel.net/latest-dnsonly

How to enable cPanel / WHM /webmail after enabling firewall in Virtuozzo

By default, cPanel’s and WHM’s ports are closed for Virtuozzo. We will need to open them using SSH.

As root, run the following commands:

This will opens cPanel with and without SSL, and WHM with and without SSL and webmail ports.

To save the firewall changes, use the following:

To see the firewall rules, type

Building the Apache Configuration File in WHM

The build process begins by distilling and recording Apache’s current configuration. The build time options you configured during the EasyApache setup are used to begin building the configuration.

Option modules such as mod_security are installed, and their corresponding modifications are made to the new Apache configuration file.
A new, assumedly valid Apache configuration file will exist in the configuration directory.
Directives added to the final Apache configuration file as defaults have been removed at this point.
No VirtualHost entries exist in the configuration file at this point.

The new configuration is distilled in much the same way as before; however, this time the configuration is used as the basis for creating the server’s main Apache configuration template.
New directives and values are stored.

Any directives and values held over from the previous configuration will retain their values from that configuration.
The combination of the main template and data stores will be the basis for regenerating the final configuration file.

Finally, the new Apache configuration file is generated from the template and data stores and checked for syntactical correctness.
If the new file passes the test, the process is complete.
If the file fails the syntax check, the previous Apache configuration is restored.

Reference: http://cpanel.net

Enabling or disabling SuExec in WHM

SuExec is an Apache feature that gives users the ability to run CGI and SSI programs using user IDs that are different from the user ID of the calling web server. This effectively means that CGI and SSI programs will not have access to the root account or have root permissions.

To enable or disable SuExec:

1.Click on the Enable/Disable SuExec link in the Server Setup menu.
2.Click on the Enable button to enable SuExec or click on the Disable button to disable SuExec.

suEXEC is based on a setuid “wrapper” program that is called by the main Apache web server. This wrapper is called when an HTTP request is made for a CGI or SSI program that the administrator has designated to run as a userid other than that of the main server. When such a request is made, Apache provides the suEXEC wrapper with the program’s name and the user and group IDs under which the program is to execute.

Rolling back files in WHM

WebHost Manager automatically saves a backup version of the following three files whenever they are changed:

*httpd.conf
*named.conf
*proftpd.conf or pure-ftpd.conf

You can revert to any of the previously saved versions whenever required. The restored version becomes the latest version, and does not delete other versions.

To roll back a file:

Please select a file to rollback:

Click on the Configuration File Rollback link in the Backup menu.

Click on the Back button button to review previous versions. As you change files, the Date field will update and the display area will update with the contents of the different file.
Click on the Restore button to roll back to the displayed version of the file.