cPanel KnowledgeBase and Troubleshooting, cPanel Server Fixes and Tutorials

This attack usually occurs after the attacker has been able to read the contents of the /etc/passwd file and has enumerated the server’s users. The attacker then runs a script which blindly builds symbolic links (a bit like shortcuts on Windows or Aliases on a Mac) to locations where configuration files for commonly used CMS […]

This Heartbleed vulnerability allows an attacker to read 64 kilobyte chunks of memory from the servers and clients that connect using SSL through a flaw in the OpenSSL’s implementation of the heartbeat extension. cPanel & WHM does not provide any copies of the OpenSSL library. The daemons and applications shipped with cPanel & WHM link […]

How to enable NAT behind the cpanel ? Most of webhosting providers currently used NAT service for their users. When you install cPanel & WHM, the installer will detect whether your server is on a NAT-configured network. If the installer detects a NAT-configured network, your server will configure itself for NAT mode and attempt to […]

How to prevent user creating certain domains You can use cPanel & WHM to prevent users creating certain domains. You can do this using the WHM Tweak Settings option labeled Prevent cPanel users from creating specific domains. For cPanel security purpose, this feature is very useful for admins. if you wish to prevent cPanel users […]

cPanel plugin ApacheBooster is used to reduce the server loads and memory usages and it has been providing maximum performance for your domains. Its intergared with nginx and varnish which is used for high performance. Varnish Cache Varnish Cache is a web accelerator, sometimes referred to as a HTTP accelerator or a reverse HTTP proxy, […]

This security advisor addon has only been tested on 11.38. Installing this addon is easy, using Git. Git is a powerful version control tool cPanel. It’s also included with cPanel & WHM and the tool used here to check out the cPanel Security Advisor. Git is also distributed with CentOS/RHEL, but cPanel has it’s own […]

We can use custom modules such as Apache and PHP modules also known as “Opt Mods” and “optmods” through the EasyApache system. You can access these modules from both the command line and the WHM interface. EasyApache will compile these custom modules as well as all the other modules you select into PHP and Apache. […]

In cPanel & WHM 11.38.1, the AppConfig system was expanded. You can now use the AppConfig system to register and display WHM Plugins. Note: By default, registration is required for WHM addons and is strongly recommend for cPanel & Webmail addons. Note: Registration is only required if the admin has disabled the Allow apps that […]

libgcc_s.so.1 must be installed for pthread_cancel to work Most of time received libgcc error when the server running out of memory will cause this error. Very your current cpanel memory limit root@cpanel  [~]# grep -i maxmem /var/cpanel/cpanel.config maxmem=256 Simply increase the memory limitation to 512M, save the file,  and run ‘/usr/local/cpanel/whostmgr/bin/whostmgr2 –updatetweaksettings’ to save the […]

You must open the following ports to run cPanel behind a firewall. Mostly these ports will automatically open when you install the cpanel. CSF firewall also fetch default ports automatically. cPanel default open ports in your server. FTP   Port Service Details 20 FTP TCP inbound/outbound 21 FTP TCP/UDP inbound/outbound   Server administration and maintenance […]