Problem with resolving name

[Albert Shih]

Hi everyone

I've got a very strange problem, first time since I'm using FreeBSD (from 3
I think).

After a fresh install (freebsd 11.1-P8) I got a very strange behavior, if I
dot

  ssh/ping fqdn

I got a (after long time)

  ssh: Could not resolve hostname fqdn: hostname nor servname provided, or not known

but if I do

  host fqdn

I got the correct answer(instantly), and after that the ... sometime ... ssh/ping work fine, sometime
ssh still not working.

So I track with tcdump+wireshark, it seem the host try to resolv a AAAA
record, but my server fqdn don't have a AAAA record (only V4 server), the
host try 3 times after (3 time with AAAA).

Instead a hosts fqdn do the correct dns request.

I can use ssh -4 (and it's working), but it's seem every command who need a
name resolution try the same thing and failed after some time, so lots of
command become very slow.

Inside my rc.conf no v6 configuration.

Regards


--
Albert SHIH
DIO bâtiment 15
Observatoire de Paris
xmpp: jas at obspm.fr
Heure local/Local time:
Wed Mar 21 14:36:27 CET 2018