Re: why does getdomainname(2) answer "(none)"?

[David Wright <d.wright@open.ac.uk>]

Quoting Tim Showalter (tjs@psaux.com):
> Hi.  I'm curious why my Debian systems always answers getdomainname()
> with "(none)".  Actually, one of the FreeBSD machines I use responds
> with "", but I'm still curious why it doesn't work.

$ cat /proc/sys/kernel/domainname 
(none)
$ 

is where (none) comes from.

> It looks like the dnsdomainname only uses getdomainname() if you ask
> about NIS.  Both glibc and the hostname source seem to agree on this.
> 
> What am I missing, or is the documentation just bogus?

In /usr/local/src/kernel-source-2.2.15/Documentation/proc.txt it says

 domainname and hostname
    These files can be controlled to set the NIS domainname and
    hostname of your box. For the classic darkstar.frop.org a simple:

    # echo "darkstar" > /proc/sys/kernel/hostname
    # echo "frop.org" > /proc/sys/kernel/domainname

    would suffice to set your hostname and NIS domainname.

so it seems you need to tell it.

Cheers,

-- 
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