On the slave server, I noticed that when I create a site, it sometimes corrupts the /etc/group file With that, several services stop. I recover the file backup and everything comes back. I don't know if anyone has had a similar problem, if so and there was a solution, I appreciate it. On the Master server this does not happen.
You could turn on server debugging on your slave server and try to reproduce the issue running server.sh manually to try to identify when it happens (what commands are being run).
I backup /etc every day. It just replaces yesterday's file. The file was not corrupted but only had a group record.
