There is also the possibility to log in as root using the command: “ sudo su – ” and then entering the root password and in this case you no longer have to enter “sudo” before giving commands. You can simply add “sudo” before any command (eg. You need root rights to give most of the commands shown in this guide. This guide will help you with installation and first configuration of Zimbra mail server on CentOS 7/RHEL 7 or CentOS 8/RHEL 8 for both production or test environment.īefore starting with this guide, it is important to draw attention to one aspect: SUDO: