25 Jul
2012
25 Jul
'12
10:23 p.m.
On 7/25/2012 3:55 PM, John R Pierce wrote:
On 07/25/12 1:57 PM, Steve Lindemann wrote:
Anyone have any ideas for why nagios would have trouble testing smtp on the email server when the primary dns goes offline? I'm not even sure where to look or who else would make sense to ask the question of on this one. I'd appreciate any insight anyone out there has on this.
DNS lookups default to using 53/udp, and only use 53/tcp for zone transfers. could it be 53/udp is being lost/blocked between this host and your ns1 ?
good question but unlikely... all the servers are in the same dmz and sit on the same switch. -- Steve