Re: Access Problem after update to CentOS 7.1

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> On 05 Apr 2015, at 14:35, Gregory P. Ennis <PoMec@xxxxxxxxx> 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/



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