I run a small private email list on qmail/ezmlm-idx off my RH 7.0 machine on a DSL connection from my home. It's been running well for two or three years now and earning its keep. Lately though, I noticed that the aol.com address are bouncing. The bounce message indicates that aol.com has blacklisted my server because of complaints about unsolicited bulk email. Well, strictly speaking this is impossible. I examine the logs and messages to postmaster frequntly, and I can see that my server is not being used by me or anyone else for mass unsolicited emails. I called aol.com and got the ball rolling to unblock me and establish a feedback loop, but in the meantime, I think I had better establish a reverse DNS zone for the server, just in case that had a part in the complaints. My problem is that I've got to be very careful about this since I cannot afford any down time if I screw it up. Before getting into it, though, I must admit that DNS has been a very hard subject for me to understand. It's also been quite a while since I set all this up and I'm getting a little hazy about the whole process. I have DNS handled by ZoneEdit.com: Domain: mollynet.com, 66.93.153.62 My ISP is Speakeasy.net. named.conf ; ; a caching only nameserver config ; directory /var/named cache . named.ca primary 0.0.127.in-addr.arpa named.local dig-x 66.93.153.62 ; <<>> DiG 8.3 <<>> -x ;; res options: init recurs defnam dnsrch ;; got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 4 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 ;; QUERY SECTION: ;; 1.1.168.192.in-addr.arpa, type = ANY, class = IN ;; ANSWER SECTION: 62.153.93.66.in-addr.arpa. 1H IN PTR dsl093-153-062.phx1.dsl.speakeasy.net nslookup -type=SOA mollynet.com Server: dsl231-041-022.sea1.dsl.speakeasy.net Address: 216.231.41.22 Non-authoritative answer: mollynet.com origin = ns3.zoneedit.com mail addr = dnsadmin.zoneedit.com serial = 980910580 refresh = 14400 (4H) retry = 7200 (2H) expire = 864000 (1w3d) minimum ttl = 7200 (2H) Okay now, this pointer record is my problem, right? 62.153.93.66.in-addr.arpa. 1H IN PTR dsl093-153-062.phx1.dsl.speakeasy.net If I tell Speakeasy.net to change that to: 62.153.93.66.in-addr.arpa. 1H IN PTR mollynet.com it will solve my problem. Right? Isn't that what is meant by reverse DNS? If I do this, can I still have ZoneEdit.com handle DNS for me? Or do I then need to switch DNS to Speakeasy.net? This is important to me, because ZoneEdit is free, while Speakeasy.net is not. Here's another part of the problem. nslookup -type=SOA 66.93.153.62 *** No start of authority (SOA) records available for 66.93.153.62 Where does the SOA for my IP address come from? I do not understand how there isn't SOA. Any suggestions will be appreciated. Frank -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
