> On 05 Apr 2015, at 14:35, Gregory P. Ennis <PoMec at PoMec.Net> wrote: > I sure need some help on this one, if any of you have ideas of what to > do next I would surely appreciate it. An additional aspect of this > scenario is that when I have used ssh to connect to this mail server via > the internal network, I am able to ssh out of the machine to one of the > internal networks or remotely to a different network. If no one else > has had this problem with 7.1 then it is obviously something I have > done, but right now I am at a loss. Assuming that the mail server’s routing table is correct, you will need some tcpdump to understand if the packets from outside reach the server (and then it discards them). I would do this: 1. Ensure that the mail server still has a valid default gateway and a correct routing table 2. start tcpdump on the gateway 3. start tcpdump on the mail server 4 Try to connect to the mail server from outside. > Greg Ciao, Andrea (just upgraded some servers, no problems) -- Andrea Dell'Amico http://adellam.sevenseas.org/ -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 841 bytes Desc: Message signed with OpenPGP using GPGMail URL: <http://lists.centos.org/pipermail/centos/attachments/20150405/0c9355c0/attachment-0004.sig>