Reverse DNS woes.
Mark.Andrews at nominum.com
Mark.Andrews at nominum.com
Tue Jul 24 00:48:11 UTC 2001
> On July 23, 2001 07:42 pm, Mark.Andrews at nominum.com wrote:
> > > Hi everyone,
> > >
> > > I'm very confused as too why my reverse DNS is no longer working. What
> > > is
> > > going wrong here? I must have done something wrong, please straighten me
> > > out.
> >
> > The problem here is that the parent servers and the child servers
> > disagree about who is serving the zone.
> >
> > Either make NS1.SUDBURYWIRED.COM and NS2.SUDBURYWIRED.COM
> > authoritative for the zone or update the delgation to point
> > to ns1.isys.ca and ns2.isys.ca.
> >
> > Mark
>
> Could I tell the people that control ns1.sudburywired.com to 'forward' all
> calls to my IP block to my server?
No.
>
> -reid
>
> > > See details below.
> > >
> > > _____________________________________________________
> > >
> > > IP used in all tests: 216.223.80.10
> > >
> > > Output from nslookup on a.root-servers.net
> > > _____________________________________________________
> > > simple:~# nslookup
> > > Default Server: localhost
> > > Address: 127.0.0.1
> > >
> > > > server a.root-servers.net
> > >
> > > Default Server: a.root-servers.net
> > > Address: 198.41.0.4
> > >
> > > > set debug
> > > > 216.223.80.10
> > >
> > > Server: a.root-servers.net
> > > Address: 198.41.0.4
> > >
> > > ;; res_nmkquery(QUERY, 10.80.223.216.in-addr.arpa, IN, PTR)
> > > ------------
> > > Got answer:
> > > HEADER:
> > > opcode = QUERY, id = 37028, rcode = NOERROR
> > > header flags: response, want recursion
> > > questions = 1, answers = 0, authority records = 2, additional
> > > = 0
> > >
> > > QUESTIONS:
> > > 10.80.223.216.in-addr.arpa, type = PTR, class = IN
> > > AUTHORITY RECORDS:
> > > -> 80.223.216.in-addr.arpa
> > > nameserver = NS1.SUDBURYWIRED.COM
> > > ttl = 345600 (4D)
> > > -> 80.223.216.in-addr.arpa
> > > nameserver = NS2.SUDBURYWIRED.COM
> > > ttl = 345600 (4D)
> > >
> > > ------------
> > > Authoritative answers can be found from:
> > > 80.223.216.in-addr.arpa
> > > nameserver = NS1.SUDBURYWIRED.COM
> > > ttl = 345600 (4D)
> > > 80.223.216.in-addr.arpa
> > > nameserver = NS2.SUDBURYWIRED.COM
> > > ttl = 345600 (4D)
> > > *** No address (A) records available for 216.223.80.10
> > > ______________________________________________________
> > >
> > >
> > > Output from nslookup on ns1.sudburywired.com
> > > ______________________________________________________
> > > simple:~# nslookup
> > > Default Server: localhost
> > > Address: 127.0.0.1
> > >
> > > > server ns1.sudburywired.com
> > >
> > > Default Server: ns1.sudburywired.com
> > > Address: 216.223.90.2
> > >
> > > > set debug
> > > > 216.223.80.10
> > >
> > > Server: ns1.sudburywired.com
> > > Address: 216.223.90.2
> > >
> > > ;; res_nmkquery(QUERY, 10.80.223.216.in-addr.arpa, IN, PTR)
> > > ------------
> > > Got answer:
> > > HEADER:
> > > opcode = QUERY, id = 1077, rcode = NOERROR
> > > header flags: response, want recursion, recursion avail.
> > > questions = 1, answers = 1, authority records = 2, additional
> > > = 1
> > >
> > > QUESTIONS:
> > > 10.80.223.216.in-addr.arpa, type = PTR, class = IN
> > > ANSWERS:
> > > -> 10.80.223.216.in-addr.arpa
> > > name = simple.isys.ca
> > > ttl = 14160 (3h56m)
> > > AUTHORITY RECORDS:
> > > -> 80.223.216.in-addr.arpa
> > > nameserver = ns1.isys.ca
> > > ttl = 14160 (3h56m)
> > > -> 80.223.216.in-addr.arpa
> > > nameserver = ns2.isys.ca
> > > ttl = 14160 (3h56m)
> > > ADDITIONAL RECORDS:
> > > -> ns1.isys.ca
> > > internet address = 216.223.80.10
> > > ttl = 5759 (1h35m59s)
> > >
> > > ------------
> > > Name: simple.isys.ca
> > > Address: 216.223.80.10
> > > ______________________________________________________
> > >
> > >
> > > Output from nslookup on simple.isys.ca
> > > ______________________________________________________
> > > simple:~# nslookup
> > > Default Server: localhost
> > > Address: 127.0.0.1
> > >
> > > > set debug
> > > > 216.223.80.10
> > >
> > > Server: localhost
> > > Address: 127.0.0.1
> > >
> > > ;; res_nmkquery(QUERY, 10.80.223.216.in-addr.arpa, IN, PTR)
> > > ------------
> > > Got answer:
> > > HEADER:
> > > opcode = QUERY, id = 11129, rcode = NOERROR
> > > header flags: response, auth. answer, want recursion, recursion
> > > avail.
> > > questions = 1, answers = 1, authority records = 2, additional
> > > = 2
> > >
> > > QUESTIONS:
> > > 10.80.223.216.in-addr.arpa, type = PTR, class = IN
> > > ANSWERS:
> > > -> 10.80.223.216.in-addr.arpa
> > > name = simple.isys.ca
> > > ttl = 14400 (4H)
> > > AUTHORITY RECORDS:
> > > -> 80.223.216.in-addr.arpa
> > > nameserver = ns1.isys.ca
> > > ttl = 14400 (4H)
> > > -> 80.223.216.in-addr.arpa
> > > nameserver = ns2.isys.ca
> > > ttl = 14400 (4H)
> > > ADDITIONAL RECORDS:
> > > -> ns1.isys.ca
> > > internet address = 216.223.80.10
> > > ttl = 7200 (2H)
> > > -> ns2.isys.ca
> > > internet address = 216.223.80.11
> > > ttl = 7200 (2H)
> > >
> > > ------------
> > > Name: simple.isys.ca
> > > Address: 216.223.80.10
> > > ______________________________________________________
> > >
> > >
> > > Output from nslookup on ANY other server (example used: ns2.mci.net)
> > > ______________________________________________________
> > > simple:~# nslookup
> > > Default Server: localhost
> > > Address: 127.0.0.1
> > >
> > > > server ns2.mci.net
> > >
> > > Default Server: ns2.mci.net
> > > Address: 204.147.128.70
> > >
> > > > set debug
> > > > 216.223.80.240
> > >
> > > Server: ns2.mci.net
> > > Address: 204.147.128.70
> > >
> > > ;; res_nmkquery(QUERY, 240.80.223.216.in-addr.arpa, IN, PTR)
> > > ------------
> > > Got answer:
> > > HEADER:
> > > opcode = QUERY, id = 60051, rcode = SERVFAIL
> > > header flags: response, want recursion, recursion avail.
> > > questions = 1, answers = 0, authority records = 0, additional
> > > = 0
> > >
> > > QUESTIONS:
> > > 240.80.223.216.in-addr.arpa, type = PTR, class = IN
> > >
> > > ------------
> > > *** ns2.mci.net can't find 216.223.80.240: Server failed
> > > ______________________________________________________
> > >
> > >
> > > Output from the reverse zone file
> > > ______________________________________________________
> > > $TTL 14400
> > > @ IN SOA ns1.isys.ca. root.isys.ca. (
> > >
> > > 2001072301
> > > 10800 ; Refresh 3 hours
> > > 900 ; Retry 15 minutes
> > > 604800 ; Expire 7 days
> > > 7200 ) ; Minimum ttl 2 hours
> > >
> > > IN NS ns1.isys.ca.
> > > IN NS ns2.isys.ca.
> > >
> > > 1 IN PTR atm0-gw01-sud.isys.ca.
> > > 2 IN PTR fw01-sud.isys.ca.
> > > 3 IN PTR sw01-sud.isys.ca.
> > > 4 IN PTR sw02-sud.isys.ca.
> > > 5 IN PTR sw03-sud.isys.ca.
> > >
> > > 10 IN PTR simple.isys.ca.
> > > 11 IN PTR nulled.isys.ca.
> > > 12 IN PTR complex.isys.ca.
> > > [...]
> > > _________________________________________________________
> > >
> > >
> > > Any ideas?
> > >
> > > -reid
> >
> > --
> > Mark Andrews, Nominum Inc.
> > 1 Seymour St., Dundas Valley, NSW 2117, Australia
> > PHONE: +61 2 9871 4742 INTERNET: Mark.Andrews at nominum.com
--
Mark Andrews, Nominum Inc.
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: Mark.Andrews at nominum.com
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