BIND / Sendmail and Bad Referrals

[Mark Andrews]

> 
> > At 10:48 PM 24/06/2005, Mark Andrews wrote:
> > 
> > >         link1.rona.ca is returning the wrong SOA record.   The zone
> > >         is merlin.rona.ca yet it is claiming that it is rona.ca.  Named
> > >         correctly detects this misconfiguration and marks the server
> > >         as lame.
> > >
> > >         Similarly for link2.
> > >
> > >         Mark
> > >
> > >; <<>> DiG 9.3.2prerelease <<>> AAAA merlin.rona.ca. +norec @link1.rona.ca
> .
> > >; (1 server found)
> > >;; global options:  printcmd
> > >;; Got answer:
> > >;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21126
> > >;; flags: qr aa; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
> > >
> > >;; QUESTION SECTION:
> > >;merlin.rona.ca.                        IN      AAAA
> > >
> > >;; AUTHORITY SECTION:
> > >rona.ca.                86400   IN      SOA     rona.ca. 
> > >administrator.rona.ca. 998545544 28800 7200 604800 86400
> > >
> > >;; Query time: 259 msec
> > >;; SERVER: 207.61.124.213#53(207.61.124.213)
> > >;; WHEN: Sat Jun 25 12:44:58 2005
> > >;; MSG SIZE  rcvd: 106
> > 
> > 
> > There seems to be very different results using FreeBSD with INET6 and 
> > without.  With INET6, sendmail complains as I mentioned in the opening 
> > thread. However, with INET6 disabled in the kernel, mail flows fine to this
>  
> > site ?
> > 
> >          ---Mike 
> 
> 	Because it doesn't make the AAAA queries and hence doesn't see
> 	that link1.rona.ca and link2.rona.ca are misconfigured.
> 
> 	Mark
> --
> Mark Andrews, ISC
> 1 Seymour St., Dundas Valley, NSW 2117, Australia
> PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org

	On top of everything else it is sending garbage bytes at the end
	of the DNS response.
			
	Mark

12:43:12.762644 220.237.98.197.2341 > 209.47.3.143.53:  21513+ AAAA? merlin.rona.ca. (32)
                         4500 003c 8c87 0000 3f11 dab8 dced 62c5
                         d12f 038f 0925 0035 0028 022a 5409 0100
                         0001 0000 0000 0000 066d 6572 6c69 6e04
                         726f 6e61 0263 6100 001c 0001
12:43:13.268697 209.47.3.143.53 > 220.237.98.197.2341:  21513 0/1/0 (106)
                         4500 0086 b9e2 0000 2711 c513 d12f 038f
                         dced 62c5 0035 0925 0072 ce0b
						       5409 8180 (header)
                         0001 0000 0001 0000 
					     066d 6572 6c69 6e04 (qname)
                         726f 6e61 0263 6100
					     001c		 (qtype)
						  0001		 (qclass)
						       0472 6f6e (owner)
                         6102 6361 00
				     00 06			 (type)
				          00 01			 (class)
					       00 0151 80	 (ttl)
							 00 34   (rdlen)
							      04 (mname)
                         726f 6e61 0263 6100
					     0d61 646d 696e 6973 (rname)
                         7472 6174 6f72 0472 6f6e 6102 6361 00
							      3b (serial)
                         8498 88
				00 0070 80			 (refresh)
					  00 001c 20		 (retry)
						    00 093a 80   (expire)
							      00 (mininum)
                         0151 80
				00 0000				 (garbage)
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org