CentOS 6.3 Virtual under OpenVZ cannot ping, host lookups, outbound connections while postfix running
- by Paul Cravey
My best theory is that some kernel limit is being hit preventing outbound connections. We have tried basically everything from tcpdumps to provisioning an entirely new virtual server (we do not have this problem on any other virtuals), however the problem somehow carried over, even with new postfix build (working).
Emails work, and outbound…