unrelated additional info 'host' type A from

[Mark_Andrews at isc.org]

> Hello..
> 
> I got this problem that i havent been able to resolve..
> 
> I've got a Linux box as the DNS to domain.com and within that domain there's 
> a Win2K DNS box that resolves for CIB.domain.com
> The FQDN of the Win2k box is bioserver.cib.domain.com (as reported for the de
> legation of sub-domain)
> 
> The Win2K box have two NIC (one for the domain.com net and another for the pr
> ivate net cib.domain.com)
> 
> BUT..........
> 
> When they where installing the Win2k server, they wrote in bioserver.BIO.cib.
> domain.com as the FQDN for the server.. 
> Unfortunally, that Win2k server is a primary domain controller (which doesnt 
> allow to change the server's name, except by reinstaling the server,, wich is
>  out of the question)
> 
> Know when i check the Linux messages logs, i get a LOT of these messages..:
> 
> unrelated additional info 'bioserver.BIO.cib.DOMAIN.COM' type A from [X.X.X.3
> 6].53
> 
> 
> How can i eliminate this error message form the messages log. (Remember I can
> 't touch the Win2k box)
> 
> * Can i include another sub-domain delegation for "bio.cib.DOMAIN.COM"????
> * Can i add a PTR record for the other name..
> 
> What else can i do.... ANYTHING  please...
> 
> 
> 
> dig soa cib.DOMAIN.COM
> 
> ; <<>> DiG 8.3 <<>> soa cib.DOMAIN.COM
> ;; res options: init recurs defnam dnsrch
> ;; got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1
> ;; QUERY SECTION:
> ;;      cib.DOMAIN.COM, type = SOA, class = IN
> 
> ;; ANSWER SECTION:
> cib.DOMAIN.COM.  58m12s IN SOA bioserver.bio.cib.DOMAIN.COM. adm.bio.cib.DOMA
> IN.COM. (
>                                         28              ; serial
>                                         15M             ; refresh
>                                         10M             ; retry
>                                         1D              ; expiry
>                                         1H )            ; minimum
> 
> 
> ;; AUTHORITY SECTION:
> cib.DOMAIN.COM.  1D IN NS        bio.cib.DOMAIN.COM.
> 
> ;; ADDITIONAL SECTION:
> bioserver.cib.DOMAIN.COM.  1D IN A  150.187.181.36
> 
> ;; Total query time: 7 msec
> ;; FROM: dns1.DOMAIN.COM to SERVER: default -- X.X.X.2
> ;; WHEN: Fri Mar 29 22:13:02 2002
> ;; MSG SIZE  sent: 39  rcvd: 153
> 
> 
> 
> 
> 

	SOA records arn't supposed to cause additional section processing.
	MS DNS does perform additional section processing on the SOA record.
	
	The following should address the problem by teaching named that
	the MNAME field can generate additional data.

Index: bind8/src/bin/named/ns_resp.c
diff -u bind8/src/bin/named/ns_resp.c:8.174 bind8/src/bin/named/ns_resp.c:8.175
--- bind8/src/bin/named/ns_resp.c:8.174	Tue Feb 26 20:48:20 2002
+++ bind8/src/bin/named/ns_resp.c	Tue Apr 16 23:18:35 2002
@@ -1861,6 +1861,8 @@
 		}
 		n = cp1 - data;
 		cp1 = data;
+		if (tnamep != NULL && type == T_SOA)
+			*tnamep = savestr((char *)cp1, 1);
 		break;
 
 	case T_NAPTR:
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at isc.org