41
my old hostname is still active???? (lemmy.kde.social)
submitted 7 months ago* (last edited 7 months ago) by tubbadu@lemmy.kde.social to c/linux@lemmy.ml
12 comments fedilink hide all child comments

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

top 12 comments
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[-] db2@lemmy.world 38 points 7 months ago

Caching.

[-] tubbadu@lemmy.kde.social 12 points 7 months ago

Can I clear that cache? It scares me

[-] possiblylinux127@lemmy.zip 11 points 7 months ago

Try rebooting your router

[-] db2@lemmy.world 6 points 7 months ago

Probably. What does your dns and/or dhcp?

[-] isVeryLoud@lemmy.ca 5 points 7 months ago

Sooo basically a ghost :P

[-] db2@lemmy.world 4 points 7 months ago

In the machine, yes.

[-] possiblylinux127@lemmy.zip 31 points 7 months ago

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

[-] knobbysideup@sh.itjust.works 12 points 7 months ago

Dns caching

[-] Frederic@beehaw.org 11 points 7 months ago

Reboot your router/DHCP server

[-] lemmyvore@feddit.nl 3 points 7 months ago

And you may want to use shorter DHCP leases in the future.

[-] nixx@lemmy.ca 9 points 7 months ago

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

[-] hellvolution@lemmygrad.ml 3 points 7 months ago

That's why you should set a (12h-24h tops) lease time on your DHCP...

this post was submitted on 29 Jan 2024
41 points (93.6% liked)

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