counting unique connections

[Stewart Gray]

Hey guys, 

 

Is anyone able to tell me how to count unique connections to a
particular host? I'm not interested in packet counts, or
throughput..just the number of connections that have been made to a
host. 

 

I figure this will get the job done, but it doesn't seem very clean:

 

ra -r argus-file.arg - host x.x.x.x -Z both | wc -l

 

Is there a nicer way?

 

Thanks, 

 

Stewart


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