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How to check UDP port example = 31011?

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# 1  
Old 12-10-2012
How to check UDP port example = 31011?
We have open port UDP port 31011, how to verify if port were working or traffic were receive.
# 2  
Old 12-10-2012
What UNIX are you on?

As a general answer:
Code:
netstat -a | grep 31011

The status is the right most column - e.g., ESTABLISHED
# 3  
Old 12-10-2012
if you have lsof, try this:

Code:
lsof -i:31011

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