domain-name option during the installation of Debian

[Martin T <m4rtntns@gmail.com>]

Hi,

during the installation of Debian, one is asked for "domain name".
Only place where it seems to be used is for completing the FQDN's:

root@localhost:~# find / \( \( -path "/proc" -o -path "/sys" \) -a
-prune \) -o \( -type f -a -exec grep -iH "lab.net" {} \; \)
/var/log/installer/status:Maintainer: Rémi Denis-Courmont <remi@remlab.net>
/var/log/installer/status:Maintainer: Rémi Denis-Courmont <remi@remlab.net>
/var/log/installer/cdebconf/questions.dat:Value: lab.net
/etc/network/interfaces: dns-search lab.net
root@localhost:~#


So in case I execute "ping www", it is translated automatically to
"ping www.lab.net".

However, where and how is the domain-name used during/after Debian installation?



regards,
Martin