Outbound SSH problem

Greg Hennessy Greg.Hennessy at nviz.net
Sat Jun 25 17:13:00 GMT 2005


 
> block drop out quick on em0 proto tcp from any to any port = ssh [
> Evaluations: 437 Packets: 0 Bytes: 0 States: 0 ]
> 
> block drop out quick on em0 proto udp from any to any port = ssh [
> Evaluations: 1505 Packets: 0 Bytes: 0 States: 0 ]
> 
>  
> 
> My 5.3 server (the oldest I have at this location) used to 
> show these blocked packets in the log but now doesn't and my 
> 5.4 machines never have.
> I only see them on the daily security run.  
> 
>  
> 
> My question is, are my servers compromised or am I misreading 
> the run output?  I find it hard to believe that they are 
> compromised simply because the latest server I setup, every 
> file system is mounted read only yet I still have this 
> output.  As you can imagine I'm pretty nervous about this and 
> any help would be awesome!

Yes, RTFMP , with a default policy of block, there is no need for specific
rules to stop things like outbound ssh traffic. 

Logging will tell you the rest. 



Greg




 



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