reverse lookups are wrong
Len Conrad
LConrad at Go2France.com
Sun Jul 22 20:02:37 UTC 2001
>
>But most of the time when I have services that do an ip lookup from
>outside our network, looking up the ip: 208.151.124.132 still returns
>the old firewall.infoinsights.com address.
# dig vic20.thethirdsector.com
; <<>> DiG 8.3 <<>> vic20.thethirdsector.com
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 3
;; QUERY SECTION:
;; vic20.thethirdsector.com, type = A, class = IN
;; ANSWER SECTION:
vic20.thethirdsector.com. 3H IN A 208.151.124.132
;; AUTHORITY SECTION:
thethirdsector.com. 3H IN NS mango.infoinsights.com.
thethirdsector.com. 3H IN NS ns.infoinsights.com.
thethirdsector.com. 3H IN NS ns2.infoinsights.com.
;; ADDITIONAL SECTION:
mango.infoinsights.com. 3H IN A 208.151.124.133
ns.infoinsights.com. 3H IN A 208.151.124.130
ns2.infoinsights.com. 3H IN A 208.151.124.230
# dig -x 208.151.124.132
; <<>> DiG 8.3 <<>> -x
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2
;; QUERY SECTION:
;; 132.124.151.208.in-addr.arpa, type = ANY, class = IN
;; ANSWER SECTION:
132.124.151.208.in-addr.arpa. 1H IN PTR firewall.infoinsights.com
;; AUTHORITY SECTION:
124.151.208.in-addr.arpa. 54m11s IN NS ns1.acsalaska.net.
124.151.208.in-addr.arpa. 54m11s IN NS ns2.acsalaska.net.
so, yes, your A and PTR don´t match.
Your NS´s are not delegated with authority for your reverse zone.
Len
http://MenAndMice.com/DNS-training
http://BIND8NT.MEIway.com : ISC BIND 8.2.4 for NT4 & W2K
http://IMGate.MEIway.com : Build free, hi-perf, anti-abuse mail gateways
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