Hi, On Mon, Aug 22, 2016 at 11:52 PM, Bill Cole <sausers-20150...@billmail.scconsult.com> wrote: > On 22 Aug 2016, at 21:15, Alex wrote: > >> Is it a full-fledged nameserver, suitable enough for MX, A, TXT, >> queries, etc for this purpose? > > Nope. rbldnsd is only an authoritative server and does not do any resolution > via other servers or caching of records for which it is not authoritative. > > If you have some solid reason to believe that the problem is BIND (which > seems unlikely to me...) it might be a good idea to analyze exactly what the > mechanics of the problem are and pick alternative software which is designed > to be a caching recursive resolver AND which won't have exactly the same > problem(s).
Yes, I'm learning that about rbldnsd now too. I also agree about bind - it's always performed well, and it's a perfectly robust box that it was running on, so I confused about the problem. I also really didn't want to introduce another application unique to this one box. It looks like I've isolated the problem down to a configuration error on the system that was making one of the backup nameservers unreachable, resulting in some query timeouts. Thanks, Alex
