Part 2 Exercise Find out TCP Port and Ping Command Exercise 1 Find out if a port is open or closed Type netstat a and press Enter A list of all your active TCP IP connections will populate The port numbers appear after the IP address with a colon separating the two For example, if your IP address is 192 168 1 1 and you see an entry for 192 168 1 1 2869, it means port 2869 is open If you see port numbers listed after 0 0 0 0, it means that all network adapters on your computer have the listed ports open and in the state indicated in the State column on the right Port numbers listed after 127 0 0 1 are open on your computers loopback address only The loopback address is a virtual network interface mainly used for connectivity testing purposes Provide a screenshot with your result Get the latest list of port numbers from IANA at http www iana org assignments port numbers Find out what port numbers need to be blocked to stop echo and chargen

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Part 2  Exercise  Find out TCP Port and Ping Command   Exercise 1  Find out if a port is open or closed   Type netstat  a and press Enter  A list of all your active TCP IP connections will populate  The port numbers appear after the IP address with a colon separating the two  For example, if your IP address is 192 168 1 1 and you see an entry for 192 168 1 1 2869, it means port 2869 is open  If you see port numbers listed after 0 0 0 0, it means that all network adapters on your computer have the listed ports open and in the state indicated in the State column on the right  Port numbers listed after 127 0 0 1 are open on your computers loopback address only  The loopback address is a virtual network interface mainly used for connectivity testing purposes  Provide a screenshot with your result  Get the latest list of port numbers from IANA at http   www iana org assignments port numbers  Find out what port numbers need to be blocked to stop echo and chargen

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Part-2: Exercise: Find out TCP Port and Ping Command : Exercise 1: Find out if a port is open or closed : Type netstat -a

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Advances In Databases And Information Systems 14th East European Conference Adbis 2010 Novi Sad Serbia September 2010 Proceedings Lncs 6295

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