Re: Named daemon and port 32770? (and port 32985 on restart)
On di, 2002-10-15 at 11:50, Christian Schuerer-Waldheim wrote:
> > Any ideas on why there is a single UDP port open? My configuration is
> > pretty simple, no controls configured for the name server and a 'listen-on
> > port 53' statement in the config file....
>
> As I can remember, bind is controlled (start, stop, etc) via an extra
> daemon. For this it would need an open port to listen for commands.
That wouldn't be a smart thing to do, usign a random port for listening
for admin commands. Fortunately bind doesn't do that and uses 953/tcp
for this (at least for bind9; haven't seen or used bind8 for almost 2
years)
I have these ports in use for bind on my server at home:
tcp 0 0 pub.lic.ifa.ce:53 0.0.0.0:* LISTEN 110 4774236 21576/named
tcp 0 0 10.2.1.1:53 0.0.0.0:* LISTEN 110 4425670 21576/named
tcp 0 0 127.0.0.1:53 0.0.0.0:* LISTEN 110 4425668 21576/named
tcp 0 0 127.0.0.1:953 0.0.0.0:* LISTEN 110 4425680 21576/named
udp 0 0 0.0.0.0:39946 0.0.0.0:* 110 4425675 21576/named
udp 0 0 pub.lic.ifa.ce:53 0.0.0.0:* 110 4774235 21576/named
udp 0 0 10.2.1.1:53 0.0.0.0:* 110 4425669 21576/named
udp 0 0 127.0.0.1:53 0.0.0.0:* 110 4425667 21576/named
Googling a bit will tell you that it uses that random high-numbered udp
port as a source for recursive queries, unless the query-source option
is set.
--
Tot ziens,
Bart-Jan Vrielink
Reply to: