On Wed, March 6, 2013 6:18 pm, chris wrote: > I am no expert - but I _think_ that the configuration files and the > behaviour of commands like ping and host do make sense. In particular,
> But your main problem lies with Postfix, and that is a whole different > can of worms. The command 'postconf -d' reveals several configuration > items relating to 'resolve' and 'dns'. Furthermore I found this link: > > http://www.linuxquestions.org/questions/linux-software-2/force-postfix-to > -refer-etc-hosts-857662/ > which I think describes your problem - and supplies an answer. Hopefully > it will help... Chris, many thanks, I'll follow this up later today though, perhaps I'm attempting 'wrong workaround', solving wrong problem, let me describe my original problem: this VPS/Postfix in use about 1 year, no known issues, runs multiple domains, MX, all good, handles several thousands emails daily few weeks ago mails addressed to one particular domain failed with: -Queue ID- --Size-- ----Arrival Time---- -Sender/Recipient------- EAB18382A0C 1272 Sat Mar 2 13:04:00 [email protected] (Host or domain name not found. Name service error for name=cleanmail02.cdsoft.ie type=A: Host not found, try again) [email protected] I've confirmed MX: #dig -t mx pinewood.ie ; <<>> DiG 9.3.6-P1-RedHat-9.3.6-16.P1.el5 <<>> -t mx pinewood.ie ... ;; QUESTION SECTION: ;pinewood.ie. IN MX ;; ANSWER SECTION: pinewood.ie. 3577 IN MX 20 cleanmail02.cdsoft.ie. pinewood.ie. 3577 IN MX 10 cleanmail01.cdsoft.ie. .. BUT, when I try host look up on cleanmail01.cdsoft.ie, I got: #host cleanmail01.cdsoft.ie ;; connection timed out; trying next origin Segmentation fault (core dumped) so, that's when I thought of creating /etc/host lookup.... but, my issue is really why can't I resolve on this host...? is this some ipv4/ipv6 issue ? thanks for any pointers and suggestions, thanks for all the help thus far -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
