What is the passage information

I am new to wirehark and the network as a whole, but I monitor the traffic of my application and I can filter it so that I can see when it is actively transferring the data that it should use with the server, and wirehark shows this:

protocol = TCP length = 54 info = 56705 > ms-wbt-server [ACK] Seq=1 Ack=61 Win=252 Len=0 

every second is launched from my application to my application server. Why does my application keep sending these packets every second?

This is a C # .net application if it has any help.

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2 answers

This is a keepalive TCP packet that contains no data but with the ACK flag set. Just says on the other end that you are still there, and keeps the connection open.

There is a good review here: http://tldp.org/HOWTO/TCP-Keepalive-HOWTO/overview.html

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ms-wbt-server is port 3389 and is used for Remote Desktop Protocol (RDP), do you have a remote desktop connection open for your server?

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