Openvpn hanging?
Roberto Ragusa
mail at robertoragusa.it
Tue Sep 10 15:43:00 UTC 2013
On 09/10/2013 02:05 PM, Timothy Murphy wrote:
> fedora wrote:
>
>>> I'm having a curious problem communicating with a remote site of mine.
>>> I can access the site with "ssh -Y alfred-vpn" without any problem.
>>> But then any command, eg cat, vim, tail,
>>> that gives more than a minimal response,
>>> causes the connection to hang, that is, to cease accepting any input,
>>> and I see no way to revive the connection
>>> except to kill the sshd entry from another ssh connection to the site,
>>> or else just to close the local window.
>>>
>>> For example, "sudo tail -9 /var/log/messages" works,
>>> but not if I replace 9 with 20.[tim at alfred ~]$ ifconfig tun0
>
>> Different MTU and fragmentation disabled?
>
> Thanks for your response.
> But the MTU seems to be 1500 at both ends
> (unless the modem at the remote end can change it?)
The MTU of the tunnel is probaby too big.
There are a lot of approaches to this kind of issues.
As a first try, "ifconfig tun0 1000" on both sides of
the tunnel, then check again with a new ssh session.
--
Roberto Ragusa mail at robertoragusa.it
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