reverse delegation problem

Mark.Andrews at nominum.com Mark.Andrews at nominum.com
Wed Mar 22 01:16:48 UTC 2000


> Folks,
> 
> I am having some problems delegating the reverse dns for a subnetted
> class C to another dns server. The servers that are primary for
> 205.183.255.x are proxy.xpeditesystems.com (205.183.255.6) and
> ns1.xpedite.com (137.236.4.7) [a secondary].  

	Well proxy.xpeditesystems.com in not reachable, ping fails,
	and ns1.xpedite.com is not configured as a secondary (see below).

	medns1.messagereach.com and medns2.messagereach.com appear to
	be correctly configured.

	Mark

; <<>> DiG 8.2 <<>> -x soa @137.236.4.7 +norec 
; (1 server found)
;; res options: init defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 8555
;; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2
;; QUERY SECTION:
;;	255.183.205.in-addr.arpa, type = SOA, class = IN

;; AUTHORITY SECTION:
255.183.205.in-addr.arpa.  10h43m30s IN NS  proxy.xpeditesystems.com.
255.183.205.in-addr.arpa.  10h43m30s IN NS  ns1.xpedite.com.

;; ADDITIONAL SECTION:
proxy.xpeditesystems.com.  10H IN A  205.183.255.6
ns1.xpedite.com.	1d23h52m45s IN A  137.236.4.7

;; Total query time: 611 msec
;; FROM: bsdi.dv.isc.org to SERVER: 137.236.4.7
;; WHEN: Wed Mar 22 12:10:34 2000
;; MSG SIZE  sent: 42  rcvd: 138

> 
> I am trying to delegate 205.183.255.224-254 to
> medns1.messagereach.com (205.183.255.229) and medns2.messagereach.com
> (205.183.255.231) [a secondary].
> 
> The proxy and ns1 systems are running bind 4.9.4-P1 and 4.9.3-P1
> respectivily.  The medns1 & 2 systems are running bind 8.2.2-P5
> 
> In the proxy's named.boot file I have
> ----------------------------------------------------------------------
> 
> primary 255.183.205.IN-ADDR.ARPA. db.xpeditesystems.rev
> 
> ----------------------------------------------------------------------
> In the db.xpeditesystems.rev  file on the proxy I have.
> ----------------------------------------------------------------------
> 
> 224.255.183.205.in-addr.arpa. IN CNAME
> 224.224-254.255.183.205.in-addr.arpa.
> 225.255.183.205.in-addr.arpa. IN CNAME
> 225.224-254.255.183.205.in-addr.arpa.
> ... continuing until
> 254.255.183.205.in-addr.arpa. IN CNAME
> 254.224-254.255.183.205.in-addr.arpa.
> 
> 224-254.255.183.205.in-addr.arpa. 3600 IN NS medns1.messagereach.com.
> 224-254.255.183.205.in-addr.arpa. 3600 IN NS medns2.messagereach.com.
> 
> -----------------------------------------------------------------------
> In the medns1.messagereach.com named.conf file (same in medns2) I have.
> -----------------------------------------------------------------------
> 
> zone "224-254.255.183.205.IN-ADDR.ARPA" in {
>         type master;
>         file "db.205.183.255.224-254";
> };
> 
> ---------------------------------------------------------------------
> In the db.205.183.255.224-254 file on medns1.messagereach.com I have.
> ---------------------------------------------------------------------
> 
> $TTL 3600
> @ IN  SOA medns1.messagereach.com. hostmaster.messagereach.com.
> 
>                         ( 7 10800 3600 604800 3600 )
> 
>                                 IN  NS  medns1.messagereach.com.
>                                 IN  NS  medns2.messagereach.com.
> 
> 229   IN  PTR   medns1.messagereach.com.
> 231   IN  PTR   medns2.messagereach.com.
> 227   IN  PTR   memailin1.messagereach.com.
> 232   IN  PTR   memailin2.messagereach.com.
> 228   IN  PTR   mewww1.messagereach.com.
> 235   IN  PTR   mewww2.messagereach.com.
> 226   IN  PTR   memailout1.messagereach.com.
> 233   IN  PTR   memailout2.messagereach.com.
> 234   IN  PTR   memailout3.messagereach.com.
> 236   IN  PTR   memailout4.messagereach.com.
> 230   IN  PTR   pull1.messagereach.com.
> 237   IN  PTR   pull2.messagereach.com.
> --------------------------------------------------------------------
> 
> I think I have done everything right.. at least accoridng to the dns&bind
> book ver 3.
> 
> When I go to the proxy and try to do a nslookup on 205.183.255.237
> or any other ip listed above it seems to work fine.
> 
> When I try from medns1&2 for the same ip address it fails with this
> error..
> 
> root at medns1 # nslookup 205.183.255.237
> *** Can't find server name for address 205.183.255.229: Server failed
> 
> I end up just timing out on everwhere else on the net that I tried it. 
> 
> Any ideas?
> 
> --------------------------------------------------------------------
> One other minor issue I am having is that on the medns1 and 2 boxes
> I keep getting this error message in the logs when bind is restarted.
> What should I do to resolve this?
> 
> Mar 21 18:38:54 medns1 named[9108]: check_hints: no A records for
> L.ROOT-SERVERS.NET class 1 in hints
> 
> Thanks a LOT! Mike
> 
> 
> 
> 
> 
> 
> 
--
Mark Andrews, Nominum Inc. / Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at nominum.com



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