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When issuing a command netstat -an on a server, there are a lot of TCP state...

When issuing a command netstat -an on a server, there are a lot of TCP state of SYN-RECEIVED and ESTABLISHED showing. Should there be any concerns with what netstat is reporting? Explain.

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Answer #1

netstat is a tool which is used to display all the network connections for the transmission control protocol, UDP connections, routing tables interface tables, multicast groups, networking statistics, masqueraded connections, server sockets etc.

when a netstat -a command is executed on any server or machine it will display all sockets : server sockets listening and default connected

The report shown when netstat command executed doesn't impact the server it only shows the list of server sockets which are active or listening, started etc.,

The netstat command used for problem determination.

The netstat command works on unix-like systems.

when netstat command executed in my machine:

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