[Semibug] OpenVPN hates ssh

[Steven Surdock]

Could be a firewall state issue...

-----Original Message-----
From: Semibug <semibug-bounces at lists.nycbug.org> On Behalf Of Mike Wayne
Sent: Thursday, May 28, 2020 3:51 PM
To: semibug at lists.nycbug.org
Subject: Re: [Semibug] OpenVPN hates ssh

On Thu, May 28, 2020 at 03:33:16PM -0400, Carl T. Miller wrote:
> Yes, try ssh -v, ssh -vv, or ssh -vvv on the client side.?? It will 
> let you know if there are any client-side issues.?? If that doesn't 
> help, check the system logs for messages from the ssh daemon.?? Doing 
> this should at least give you a hint.

Tried that. No joy.

Note that I get logged in just fine. I can run commands just fine and everything works - for 55 seconds or so.

Further testing: It looks like the problem is from the client to the server because I can do 
   % date ; sleep 60; date
   Thu May 28 15:44:54 EDT 2020
   Thu May 28 15:45:54 EDT 2020
   %

Then, at this point, I can not send anything to the server - no response of ANY kind. But I can open a new ssh session and it works.

I can also log into the server and "write" at myself and see the
message:
   %
   Message from wayne at server on pts/1 at 15:48 ...
   EOF

Eventually, ssh dies and prints:
   Fssh_packet_write_wait: Connection to 172.16.6.1 port 22: Broken pipe

So, something with OpenVPN is timing out such that I can not send from the client, after about a minute.

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