hostname FQDN

[Colin Law]

On 12 February 2016 at 10:12, thufir <hawat.thufir at gmail.com> wrote:
> Why does the --all-fqdns return an empty line?

>From man page
       -A, --all-fqdns
              Displays  all  FQDNs  of the machine. This option
enumerates all configured network
              addresses on all configured network interfaces, and
translates them to  DNS  domain
              names. Addresses that cannot be translated (i.e. because
they do not have an appro‐
              priate reverse IP entry) are skipped. Note that
different addresses may resolve  to
              the  same name, therefore the output may contain
duplicate entries. Do not make any
              assumptions about the order of the output.

Note the bit about skipping.  Is that the answer?

Colin

>
> thufir at tleilax:~$
> thufir at tleilax:~$ hostname -f
> tleilax.bounceme.net
> thufir at tleilax:~$
> thufir at tleilax:~$ hostname --all-ip-addresses
> 192.168.1.4
> thufir at tleilax:~$
> thufir at tleilax:~$ hostname -i
> 127.0.1.1
> thufir at tleilax:~$
> thufir at tleilax:~$ cat /etc/hosts
> 127.0.0.1       localhost
> 127.0.1.1       tleilax.bounceme.net    tleilax
>
> # The following lines are desirable for IPv6 capable hosts
> ::1     ip6-localhost ip6-loopback
> fe00::0 ip6-localnet
> ff00::0 ip6-mcastprefix
> ff02::1 ip6-allnodes
> ff02::2 ip6-allrouters
> thufir at tleilax:~$
> thufir at tleilax:~$ hostname --all-fqdns
>
> thufir at tleilax:~$
>
>
> thanks,
>
> Thufir
>
>
> --
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