Package: hostname
Version: 3.13
Severity: normal
On my machine, which is on a local network (thus doesn't have a
"public" IP address):
$ hostname --fqdn
xvii.vinc17.org
$ hostname --all-fqdns
xvii.local
It seems that xvii.local is set up by avahi-daemon, as I can see in
the syslog file:
Jul 28 18:12:34 xvii avahi-daemon[2690]: Server startup complete. Host name is
xvii.local. Local service cookie is 1210368067.
However xvii.vinc17.org resolves to 127.0.1.1 (via /etc/hosts) while
xvii.local resolves to 192.168.1.2 (the IP address of eth0, obtained
via DHCP). This means that xvii.vinc17.org is permanent, while
xvii.local will no longer exist if eth0 is brought down.
The method use by "hostname --all-fqdns" should make sure that the
FQDN is listed, because this is what one expects.
The hostname(1) man page gives strange recommendations:
-f, --fqdn, --long
Display the FQDN (Fully Qualified Domain Name). A FQDN consists
of a short host name and the DNS domain name. Unless you are
using bind or NIS for host lookups you can change the FQDN and
the DNS domain name (which is part of the FQDN) in the
/etc/hosts file. See the warnings in section THE FQDN above, and
avoid using this option; use hostname --all-fqdns instead.
Why use --all-fqdns instead of --fqdn? If the goal is to rely on a
permanent FQDN (e.g. for host identification in log files are things
like that), then --fqdn is a much better way. Really, this depends
on what the user wants to do...
-- System Information:
Debian Release: jessie/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1,
'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.10-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages hostname depends on:
ii libc6 2.17-7
hostname recommends no packages.
hostname suggests no packages.
-- no debconf information
-- debsums errors found:
sh: 1: /usr/sbin/dpkg-divert: not found
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