Hi Occasionally we see customer is complainning that we are not able to resolve mx record when mxtoolbox or other website can resolve their mx record . If i do a trace on the domain, i get bellow .
now the problem is : demeter.is.co.za. and babylon.mitsol.co.za does not know anything about MX record of that domain. but if i query by using parent name server ns1.yithosting.co.za. and ns2.yithosting.co.za , it returns the mx record . but mxtoolbox, introdns can resolve the mx record although they complain the same that """" The following nameservers are listed at your nameservers as nameservers for your domain, but are not listed at the parent nameservers (see RFC2181 5.4.1). You need to make sure that these nameservers are working.If they are not working ok, you may have problems! demeter.is.co.za babylon.mitsol.co.za ERROR: One or more of the nameservers listed at the parent servers are not listed as NS records at your nameservers. The problem NS records are: ns1.yithosting.co.za ns2.yithosting.co.za This is listed as an ERROR because there are some cases where nasty problems can occur (if the TTLs vary from the NS records at the root servers and the NS records point to your own domain, for example). "" then why our bind is unable to resolve mx record ??? Thanks for the help [root@za-ns-8 ~]# dig rbcaa.co.za +trace ; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.17.rc1.el6_4.4 <<>> rbcaa.co.za +trace ;; global options: +cmd . 447499 IN NS a.root-servers.net. . 447499 IN NS j.root-servers.net. . 447499 IN NS l.root-servers.net. . 447499 IN NS d.root-servers.net. . 447499 IN NS k.root-servers.net. . 447499 IN NS g.root-servers.net. . 447499 IN NS i.root-servers.net. . 447499 IN NS h.root-servers.net. . 447499 IN NS m.root-servers.net. . 447499 IN NS c.root-servers.net. . 447499 IN NS f.root-servers.net. . 447499 IN NS e.root-servers.net. . 447499 IN NS b.root-servers.net. ;; Received 508 bytes from 10.33.91.35#53(10.33.91.35) in 14 ms za. 172800 IN NS za1.dnsnode.net. za. 172800 IN NS disa.tenet.ac.za. za. 172800 IN NS nsza.is.co.za. za. 172800 IN NS za-ns.anycast.pch.net. za. 172800 IN NS sns-pb.isc.org. ;; Received 360 bytes from 199.7.83.42#53(199.7.83.42) in 346 ms co.za. 86400 IN NS ns0.plig.net. co.za. 86400 IN NS ns.coza.net.za. co.za. 86400 IN NS ns0.neotel.co.za. co.za. 86400 IN NS ns1.coza.net.za. co.za. 86400 IN NS coza1.dnsnode.net. co.za. 86400 IN NS ns0.is.co.za. co.za. 86400 IN NS ns4.iafrica.com. ;; Received 266 bytes from 196.4.160.27#53(196.4.160.27) in 285 ms rbcaa.co.za. 86400 IN NS ns1.yithosting.co.za. rbcaa.co.za. 86400 IN NS ns2.yithosting.co.za. ;; Received 108 bytes from 196.4.160.17#53(196.4.160.17) in 81 ms rbcaa.co.za. 14400 IN A 41.203.1.156 rbcaa.co.za. 86400 IN NS demeter.is.co.za. rbcaa.co.za. 86400 IN NS babylon.mitsol.co.za. ;; Received 99 bytes from 41.203.1.158#53(41.203.1.158) in 41 ms _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
