>How do I correct this problem? When I run 'nslookup 74.220.16.65' from various >machines it shows the correct answer.
dig cronus.intersessions.com. @ns.intersessions.com. +short 74.220.16.65 dig -x 74.220.16.65 @ns.intersessions.com. +short cronus.intersessions.com. so there is PTR+A "match". delegation of the PTR is OK: dig -x 74.220.16.65 +trace ; <<>> DiG 9.2.3 <<>> -x 74.220.16.65 +trace ;; global options: printcmd . 16937 IN NS h.root-servers.net. . 16937 IN NS c.root-servers.net. . 16937 IN NS b.root-servers.net. . 16937 IN NS j.root-servers.net. . 16937 IN NS g.root-servers.net. . 16937 IN NS e.root-servers.net. . 16937 IN NS d.root-servers.net. . 16937 IN NS i.root-servers.net. . 16937 IN NS k.root-servers.net. . 16937 IN NS m.root-servers.net. . 16937 IN NS f.root-servers.net. . 16937 IN NS a.root-servers.net. . 16937 IN NS l.root-servers.net. ;; Received 321 bytes from 207.203.133.65#53(207.203.133.65) in 3 ms 74.in-addr.arpa. 86400 IN NS DILL.ARIN.NET. 74.in-addr.arpa. 86400 IN NS BASIL.ARIN.NET. 74.in-addr.arpa. 86400 IN NS Y.ARIN.NET. 74.in-addr.arpa. 86400 IN NS Z.ARIN.NET. 74.in-addr.arpa. 86400 IN NS INDIGO.ARIN.NET. 74.in-addr.arpa. 86400 IN NS HENNA.ARIN.NET. 74.in-addr.arpa. 86400 IN NS EPAZOTE.ARIN.NET. 74.in-addr.arpa. 86400 IN NS CHIA.ARIN.NET. ;; Received 204 bytes from 192.33.4.12#53(c.root-servers.net) in 23 ms 16.220.74.in-addr.arpa. 86400 IN NS NS2.INTERSESSIONS.COM. 16.220.74.in-addr.arpa. 86400 IN NS NS.INTERSESSIONS.COM. ;; Received 95 bytes from 192.35.51.32#53(DILL.ARIN.NET) in 75 ms 65.16.220.74.in-addr.arpa. 10800 IN PTR cronus.intersessions.com. 16.220.74.in-addr.arpa. 10800 IN NS ns.intersessions.com. 16.220.74.in-addr.arpa. 10800 IN NS ns2.intersessions.com. ;; Received 148 bytes from 216.235.79.235#53(NS2.INTERSESSIONS.COM) in 38 ms and delegation is also OK for the intersessions.com zone. If there is a problem somewhere resolving the PTR, it's not with your NSs. Len ______________________________________________ IMGate OpenSource Mail Firewall www.IMGate.net
