tcp_send error!

Éric Allard bind_ml at telusquebec.net
Wed Jan 30 14:37:59 UTC 2002


At 10:46 2002-01-26 +1100, you wrote:

Why does the named have to bind on the 0.0.0.0 address?
When doest it have to do a query_source?

I would apreciate any explainations!
Thanks in advance!

Here this part of the code:
src =3D server_options->query_source;
src.sin_port =3D htons(0);
if (bind(sp->s_rfd, (struct sockaddr *)&src, sizeof(src)) < 0)
ns_info(ns_log_default, "tcp_send: bind(query_source):
%s",
strerror(errno));



> >
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > This is only a guess but are you running (starting) named as a
> > non-root user and have a query-source port < 1024? If so, that's your
> > problem. Only root can bind to ports < 1024.
>
>         The error would be "permission denied" in that case.  The user
>         named is running at should not be a issue as the port is set
>         to zero when binding for TCP letting system select the port.
>
>         My suggestion would be to start it under a debugger (using -f)
>         and set a break point on the ns_info line after the bind call in
>         tcp_send and examine 'src' and 'options->query_source'.
>
>         Mark
> >
> > Take out the query-source port option, or start named as root and let
> > it switch UID itself using the -u command-line option.
> >
> >
> > Michael Kj=F6rling
> >
> >
> > On Jan 25 2002 11:17 -0500, =C9ric Allard wrote:
> >
> > >
> > > Hi!
> > >
> > > I use bind 8.2.5 on solaris 2.5.1 and I get constantly this error:
> > >
> > > Jan 25 10:49:27 empress named[29134]: tcp_send: bind(query_source):=20
> Invali
> > d
> > > argument
> > >
> > > What doest it means! Is anyone can give me a solution to resolve it?
> > >
> > > I will apreciate any hints!
> > >
> > > Thanks!
> >
> > - --
> > Michael Kj=F6rling  --  Programmer/Network administrator  ^..^
> > Internet: michael at kjorling.com -- FidoNet: 2:204/254.4   \/
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> >
> > ``And indeed people sometimes speak of man's "bestial" cruelty, but
> > this is very unfair and insulting to the beasts: a beast can never be
> > so cruel as a man, so ingeniously, so artistically cruel.''
> > (Ivan Karamazov, in Dostoyevsky's 'The Brothers Karamazov')
> >
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> > *** http://michael.kjorling.com/spam/ before doing so.
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>--
>Mark Andrews, Internet Software Consortium
>1 Seymour St., Dundas Valley, NSW 2117, Australia
>PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at isc.org



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