Servers may become inaccessible upon reboot after installing cPanel on Almalinux 8 servers.
NetworkManager is disabled on Almalinux 8 servers upon installation of the cPanel software. As such, rebooting the server before re-enabling NetworkManager may result in the server being inaccessible. NetworkManager is not currently supported, but our development team is working towards supporting NetworkManager in the future.
Our only known workaround at this time is to re-enable the NetworkManager before rebooting the server after a cPanel installation:
1. Install cPanel.
2. Re-enable NetworkManager. For example, if you have access to SSH/Terminal/Console, the following commands will be used to re-enable NetworkManager.
/usr/bin/systemctl stop network
/usr/bin/systemctl disable network
/usr/bin/systemctl enable NetworkManager
/usr/bin/systemctl start NetworkManager
Note: You may also work with your network administrator or hosting provider to configure the server to meet cPanel's network requirements before installing cPanel.
More details about cPanel's networking requirements can be found in the article below.