> -----Original Message----- > From: redhat-list-bounces@xxxxxxxxxx > [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Chet Nichols III > Sent: Wednesday, 25 June 2008 12:00 AM > To: General Red Hat Linux discussion list > Subject: Re: Known issue with resolving hosts with multiple > PTR records? > > The RHEL4 (update 6) boxes I tested this one worked fine > without an issue. > They truncated (as expected), and switched over to TCP. > There might be a nameserver or two in there > that isn't accepting TCP requests. The fact it seems to be > working for a bunch of people might prove that one otherwise, > but you never know. Would there happen to be any firewalls > that are blocking 53/TCP, either incoming or outgoing, from > certain subnets? > > Good luck- thanks! > > Chet > > Ahah, that was it. For some reason the firewall was configured to block TCP/53, while it was permitting UDP/53. Most peculiar and now it's all fixed. Thanks very much! -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list