July 15, 2021

Firewalld is one of the firewall management tools for Linux and it will control your server’s incoming and outgoing traffic. Failed to start firewalld.service: unit is masked is a common error that can happen due to masking issues. On our server management plan, our support team are dealing with similar issues and we will provide support within no time. Some of our clients faced this issue when restarting the firewalld service in their server. When