On Fri, May 24, 2024 at 01:40:38PM -0400, Jeffrey Walton wrote: > On Fri, May 24, 2024 at 11:13 AM Paul M Foster <pa...@quillandmouse.com> > wrote: > > 192.168.254.30 yosemite.mars.lan yosemite
> 127.0.1.1 is traditionally used for the fully qualified domain name > (fqdn). So I would expect to see 'yosemite.mars.lan', but not > 'yosemite'. I don't know why you would expect that. What purpose would that serve? The goal here is for programs to be able to look up "the IP address" that belongs to $HOSTNAME. If the hostname is "yosemite", then "yosemite" must appear in the /etc/hosts file as an alias for whatever made-up FQDN is being used. This is what Paul has. What Paul has looks quite reasonable to me. If 192.168.254.30 is in fact bound to an ethernet interface by a static configuration (e.g. /etc/network/interfaces) then I would also say it looks correct. > Also, fqdn's end in dot '.' to denote the top of the dns tree. Not in the /etc/hosts file, they don't. You may be thinking of BIND configuration files. I've never IN MY LIFE seen trailing dots on hostnames in /etc/hosts.