Delete Mail Queue If you are trying to delete your mail queue in Postfix for ISPConfig 3, try the flush command first before deleting all the mail in the queue. The flush command option will attempt to deliver every message in the deferred mail queue. To list all mail...
Cloning a container in OpenVZ is a great way to backup your server before making any changes. If something goes wrong, you can easily turn on the cloned container and have your server back to where you started. In this example, the old container will be CT111, and the...
To create a new user in Debian / Ubuntu you will need to be logged in as the root user. There are two options I will explain that you can choose from when creating a new user. Creating A New User With The Command adduser This is the command that is used when you want...
Hardening SSH (Secure Shell) on your Debian / Ubuntu server is something that should be done immediately. It is not hard to do and can save you from lots of potential brute force attacks. Change the Default SSH Port Changing the default SSH port is one of the easiest...
Changing SSH Default Port The default port for SSH is port 22. This can easily be changed by modifying the /etc/ssh/sshd_config file. vi /etc/ssh/sshd_config Change the section that says “Port 22” to your new chosen port number. The new port number does...