| Connect looses the mail connection to the outer world [message #127240] |
Tue, 19 January 2016 00:56  |
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MGyHardSoft
Messages: 31
Registered: July 2013
Location: Budapest
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There is a strange thing happens since a month or two. After a while Connect cannot be contacted to from the external network for SMTP, Outlook or Web Client (HTTPS). What is really strange: if I VPN in to the local network, Web Client works perfectly from there.
1. I tried to restart the internal services of Connect. Does not help.
2. I tried to restart Connect service itself. Does not help.
3. What helps is to reboot the whole machine. "Fortunately" I can connect to the local network via (Kerio Control) VPN, and Web Admin works from there, so I can perform the reboot.
The fact that Connect heals by rebooting the machine indicates that there is no external factors in the problem (e.g. no firewall or DNS issue). I tried to find anything in the logs, even in the operating system's logs, without success. The machine is healthy, RAM usage is around 40 %, processor usage is around 5 %.
What is even more strange: I have two almost identical configuration which do the same:
- Kerio Control firewall 9.0.0 Virtual Appliance (VA)
- Kerio Connect 9.0.1 (394) running on Debian GNU/Linux 7.9 (Kerio VA), x86_64, with the latest operating system patches
- VMware ESXi 5.5U3 with the latest patch
- HP DL360p Gen8 server
The differences:
Server 1 uses VMware drivers, and the Connect runs as guest version 8, the other server uses HP drivers and the Connect runs as guest version 4. Server 1 had Connect 9 RC1 installed at some time, Server 2 was upgraded always to official versions, one-by-one.
Two days ago I have patched both ESXi-s and after the reboot I had to restart Server 2 again, then this morning again. Server 1 seem to work since then but the whole phenomenon is random, so it does not mean anything.
Both servers are running for years now with the latest HP patches. Two months ago everything was normal and unfortunately the errors cannot be connected to any specific change.
Have you got anything similar, or does anyone have a solution? What I thought is to make a backup, install fresh Connect and make a restore to that server, however, it is a lot of work and nothing assures that it will help.
Rgrds - Gyula
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