CentOS Version: CentOS 7 64bit Centmin Mod Version Installed: 123.09beta01 Nginx Version Installed: 1.13.3 PHP Version Installed: 7.0.20 MariaDB MySQL Version Installed: 10.1.25 When was last time updated Centmin Mod code base ? : code is uptodate Persistent Config: NGXDYNAMIC_NGXPAGESPEED='y' NGINX_PAGESPEED='y' Hello and hi community changing sshd port is a must to add more security to your environment. Very happy that menu #16 offers that. But trying to change it back to port 22 seems not possible. I get the following message: Code: Enter the SSH port number you want to change to: 22 the new port 22 is already in use by other software defined by CSF Firewall please re-run menu option 16 and try a different port aborting... Am i missing a step or is it just not possible to change the port back to 22?