I tried to update my home server today, but got an error
$ sudo dnf update 'couldn't resolve host name'
so I tried to ping anything in the internet, and for that I tried www.google.com, but it gives a 'System error' message,
$ ping www.google.com System error
then tried an IP and works just fine. Googled for some info about the issue but only found 1 person with the same problem, and the problem was a file/link that was corrupt, but mine is just fine so I got stuck there. The server was working fine so I don't know what happened.