[FreeNX-kNX] Packet Loss results in Disconnect

[Holger Krull]

Phil Stricker schrieb:
> Hi Stefan!
>>> Sometimes, there occures some packet loss on the connection. Is there 
>>> any possibility to set up a higher tolerance in freenx or ssh?
>>>     
>> TCP can request lost packages and did that quite often. In your case i
>> would investigate time to find out what cause your vpn-connection to
>> gets interrupted.
>>   
> The routing across europe is not as stable, as it should be. It is not a 
> VPN problem. I do also have some packet loss when I ping high avaiable 
> servers p.e. in switzerland (from germany).
> 
> My VPN does not get interrupted, but there is some packet loss within 
> the VPN.
> 
> Do you know anything to tune freenx to accept more packet loss?

freenx uses ssh to tunnel its data, and that in turn uses tcp for 
transport. That means freenx has no direct way to influence the reaction 
to packet loss.
On the other side SSH has a way to influence how a broken connection is 
detected, so you might look at the ssh_config Paramters:
ServerAliveCountMax
ServerAliveInterval
TCPKeepAlive

To disable TCPKeepAlive may help to make a really broken connection go 
undetected, it is enabled by default if i remember right.