Viewing connections on a Linux port

Sometimes you might want to see the active connections on a specific port, rather than just the status of the port. This can be done using netstat:

netstat -anp | grep <your_port>

Something like this will be output (for example for port 19356):

tcp6       0      0 :::19356                :::*                    LISTEN      7354/java
tcp6       0      0 192.168.50.70:19356      192.168.50.75:50604      ESTABLISHED 7354/java
tcp6       0      0 192.168.50.70:19356      192.168.50.80:39582      ESTABLISHED 2748/java

Lines containing ESTABLISHED are active connections on the specified port. In our case, there are two of them.

If you still have any questions, feel free to ask me in the comments under this article, or write me on promark33@gmail.com.

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