[ILUG] SSH dictionary attacks.

[Pádraig Brady]

Ciaran Johnston wrote:
> Aine Douglas said:
> 
>>Thanks Rick, my problem was I was debugging and watching for log
>>outputs of an app with tail -f, and my output was getting lost in the
>>dictionary attack logs.
> 
> 
> tail -f pipes very nicely to grep
> 
> tail -f <file> | grep -v <stuff I don't want to see>
> tail -f <file> | grep <only the stuff I want to see>

You probably want to use grep --line-buffered in this case; see:
http://www.pixelbeat.org/programming/stdio_buffering/

Pádraig.