[SOLVED] Ubuntu hostname -i output

stampede · 09-02-2021, 06:39 PM

I'm working on some K8's training, and I built a pair of Ubuntu VM's in VMware. KDE Neon to be specific.

I noticed this interesting anomoly.

Master:

pch@master:~$ hostname -i
127.0.1.1

Worker:

pch@worker:~$ hostname -i
192.168.0.157 172.17.0.1 fe80::20c:29ff:feb1:9de8

I even set the IP static in the GUI and disabled IPV6 rebooted and checked again. Same output... Not sure what's setting the info in hostname -i.

How can I make sure the IP is properly set so that hostname -i sees the real thing?

stampede · 09-02-2021, 06:44 PM

Found it!!
Bizarrely the two servers were reading their /etc/hosts information differently.

127.0.1.1 was labeled master under /etc/hosts.

I've cleaned up the /etc/hosts files and specified the local IP's on each DNS name and now hostname -i output works great.