I got this error while trying to add a domain as an Addon on the primary cPanel account. The domain is already pointing into another servers which also using the same DNS cluster and that was actually creating the problem.…
How to enable Password less authentication in SSH?
SSH, secure shell, is a network protocol used to access remote Linux machine. You can execute commands on the remote server by connecting using SSH protocol. There’re different types of authentication modes for SSH. a) Password authentication b) Key based…
Disable LFD alert for a specific user in Linux
How to disable alerts from LFD for a specific user in Linux? Is it possible? Yes, it is possible! Before that we have a small discussion on LFD. Login Failure Daemon is abbreviated as LFD. This comes with CSF. It…
How to extend a Xen VPS Disk space?
How to extend a Xen VPS Disk space if no space left in the existing Volume Group? I went through a situation where an LVM based Xen VPS is required to increase the Disk space. We often use lvextend command…
SSH hardening on cPanel servers
Folks! As SysAdmins we’ll always be vigilant on our server’s security, especially for SSH. SSH brute-force attacks rate are higher now-a-days and it has become more necessary to harden the SSH service on our servers. Here I’ll help you in…
How to block/deny SSH connection to server using /etc/hosts.deny file?
Secure Shell protocol is abbreviated as SSH. It is a secure and most commonly using protocol to access remote servers. This protocol uses encryption while transferring data between two hosts. TCP Wrapper is a host-based networking ACL system, used to…
How to allow SSH connection to server using /etc/hosts.allow file?
Secure Shell protocol is abbreviated as SSH. It is a secure and most commonly using protocol to access remote servers. This protocol uses encryption while transferring data between two hosts. TCP Wrapper is a host-based networking ACL system, used to…