my old hostname is still active????

tubbadu@lemmy.kde.social to Linux@lemmy.ml – 41 points –

I have no idea what's going on. my server once run fedora, and its hostname was fedoraserver. I recently installed AlmaLinux, and now its hostname is tserver. today I was looking at the logs of jellyfin and... Slow HTTP Response from http://fedoraserver:8096
...
...
...
* realization *
...
WTF!!!!! It's like I saw a ghost. do any of you know what's going on?

even more strange:

$ host fedoraserver                                                                                                                                                                                    
fedoraserver.station has address 192.168.1.4
fedoraserver.station has address 192.168.1.13
fedoraserver.station has address 192.168.1.41
fedoraserver.station has address 192.168.1.10
$ host tserver                                                                                                                                                                                         
tserver.station has address 192.168.1.13
$ host 192.168.1.13                                                                                                                                                                                    
13.1.168.192.in-addr.arpa domain name pointer fedoraserver.station.

I'm... I'm scared

11

Its your router. (your router doesn't know you changed hostnames. All it sees is your Mac)

DHCP?

Your old host registered an fqdn and did mnt remove it, then the new host registered the same ip to a different fqdn.

It happens

I have no idea what you are using for dhcp/dns but start by looking there