Re: networkmanager hostname woes

[Thomas Danckaert]

From: ng0 <address@hidden>
Subject: Re: networkmanager hostname woes
Date: Fri, 15 Sep 2017 12:14:49 +0000

> Arun Isaac transcribed 0.8K bytes:
> > Thomas Danckaert writes:
> >
> > > AFAIU, the cause is that networkmanager changes my hostname 
> > (after
> > > DHCP?), in my case to “new-host2” or something similar, and this
> > > seems to break the X session.  When I manually restore the 
> > hostname
> > > with “sudo hostname <original-hostname>”, the problem is solved. 
> >  Is
> > > there anyway to disable this behaviour for networkmanager?
> >
> > I have the exact same problem too. If somebody has a solution, I'd 
> > like
> > to hear about it.
>
> I don't understand your problem.

The problem is that changing the hostname after starting an X 
session, breaks that session.

> This is public documented behavior of NM.

Can you point me to the networkmanager documentation?  Could help to 
find a proper way to configure this (adding some configuration 
options to our networkmanager service perhaps).  I couldn't 
immediately find anything helpful.

> Assuming that we build networkmanager with dhclient 
> option/configure:

seems like we do: the networkmanager package in in 
gnu/packages/gnome.scm has an option  (string-append 
"--with-dhclient=" dhclient)))

> add to /etc/dhcp/dhclient.conf:
>
> send host-name "yourhostname";

I think some people prefer not to send their own hostname to any 
router they connect to (assuming that's what “send host-name” does 
:-) ).  Do you think creating /etc/hostname instead is not a good 
solution?

Thanks!

Thomas