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Nestat
adv1_star_11 
8/8/08 7:16:26 PM
Disciple

Can anybody help me interpret the following nestat...

Proto Local Address Foreign Address State
TCP 0.0.0.0:135 0.0.0.0:0 LISTENING
TCP 0.0.0.0:445 0.0.0.0:0 LISTENING
TCP 0.0.0.0:50300 0.0.0.0:0 LISTENING
TCP 127.0.0.1:1030 0.0.0.0:0 LISTENING
TCP 127.0.0.1:1033 127.0.0.1:1034 ESTABLISHED
TCP 127.0.0.1:1034 127.0.0.1:1033 ESTABLISHED
TCP 127.0.0.1:1035 127.0.0.1:1036 ESTABLISHED
TCP 127.0.0.1:1036 127.0.0.1:1035 ESTABLISHED
UDP 0.0.0.0:161 *:*
UDP 0.0.0.0:445 *:*
UDP 0.0.0.0:500 *:*
UDP 0.0.0.0:1025 *:*
UDP 0.0.0.0:4500 *:*
UDP 127.0.0.1:1028 *:*
UDP 127.0.0.1:1900 *:*

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segger 
8/8/08 9:06:16 PM
Guru

Quote by adv1_star_11
Can anybody help me interpret the following nestat...

Proto Local Address Foreign Address State
TCP 0.0.0.0:135 0.0.0.0:0 LISTENING
TCP 0.0.0.0:445 0.0.0.0:0 LISTENING
TCP 0.0.0.0:50300 0.0.0.0:0 LISTENING
TCP 127.0.0.1:1030 0.0.0.0:0 LISTENING



Services or applications on your machine are listening for incoming TCP connections on the above port numbers (135, 445 etc.). 0.0.0.0 on the source IP address means the apps are listening on all IP-enabled interfaces; 127.0.0.1 means they're listening on the loopback address which means only other apps on your PC can connect to that port.

TCP 127.0.0.1:1033 127.0.0.1:1034 ESTABLISHED
TCP 127.0.0.1:1034 127.0.0.1:1033 ESTABLISHED
TCP 127.0.0.1:1035 127.0.0.1:1036 ESTABLISHED
TCP 127.0.0.1:1036 127.0.0.1:1035 ESTABLISHED



Multiple connections are established on the listed port numbers between your PC and itself, probably for the purposes of inter-process communication.


UDP 0.0.0.0:161 *:*
UDP 0.0.0.0:445 *:*
UDP 0.0.0.0:500 *:*
UDP 0.0.0.0:1025 *:*
UDP 0.0.0.0:4500 *:*
UDP 127.0.0.1:1028 *:*
UDP 127.0.0.1:1900 *:*



As per first comment re: listening for TCP connections, but instead listening for arrival of UDP datagrams.


Edited by segger: 8/8/2008 9:06:50 PM

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