|
|
| sentme_mail 2001-09-28, 9:42 pm |
| hi
when i run netstat a pc it shows:
Active Connections
Proto Local Address Foreign Address State
TCP ronnie:epmap ronnie:0 LISTENING
TCP ronnie:microsoft-ds ronnie:0 LISTENING
TCP ronnie:1025 ronnie:0 LISTENING
TCP ronnie:1026 ronnie:0 LISTENING
TCP ronnie:1028 ronnie:0 LISTENING
TCP ronnie op3 ronnie:0 LISTENING
TCP ronnie:netbios-ssn ronnie:0 LISTENING
UDP ronnie:epmap *:*
UDP ronnie:microsoft-ds *:*
UDP ronnie:1027 *:*
UDP ronnie:1043 *:*
UDP ronnie:netbios-ns *:*
UDP ronnie:netbios-dgm *:*
can any body explain what does it means??? | |
|
| What type of system set up do you have? | |
| esexon 2001-10-02, 5:08 pm |
| mmm
never seen this before
TCP ronnieop3 ronnie:0 LISTENING
How did that smiley get in there?:> | |
| dmaftei 2001-10-02, 6:47 pm |
| quote:
Originally posted by esexon
mmm
never seen this before
TCP ronnieop3 ronnie:0 LISTENING
How did that smiley get in there?:>
It got in there because the board software blindly renders (that is a ":" followed by a "p"). The correct line is:
TCP ronnie:POP3 ronnie:0 LISTENING
except that in the real output POP is not in capitals. | |
| dmaftei 2001-10-02, 6:51 pm |
| quote:
Originally posted by sentme_mail
can any body explain what does it means???
Exactly what don't you understand? If you look at the header line (Proto Local Address Foreign Address State), it should be self-explanatory. | |
| sentme_mail 2001-10-02, 7:07 pm |
| TCP ronnie:netbios-ssn ronnie:0 LISTENING
UDP ronnie:epmap *:*
UDP ronnie:microsoft-ds *:*
UDP ronnie:1027 *:*
UDP ronnie:1043 *:*
UDP ronnie:netbios-ns *:*
UDP ronnie:netbios-dgm *:*
i don't know what are the functions of these lines above.
quote:
Originally posted by dmaftei
Exactly what don't you understand? If you look at the header line (Proto Local Address Foreign Address State), it should be self-explanatory.
| |
| dmaftei 2001-10-02, 7:25 pm |
| quote:
Originally posted by sentme_mail
i don't know what are the functions of these lines above.
Those are not functions. What comes after the protocol (TCP or UDP) is a socket. A socket has four parts: a source IP address, a source port, a destination IP address and a destination port. Again, look at the header line:
Proto Local Address Foreign Address State
Now take one of the lines in the output:
TCP ronnie:netbios-ssn ronnie:0 LISTENING
For this line:
- Proto is TCP
- Local Address is ronnie:netbios-ssn (in this case your IP address is resolved to your hostname, ronnie, and the port number is resolved to the service name, netbios-ssn)
- Foreign Address is ronnie:0
- State is LISTENING
The UDP lines don't have a state because UDP doesn't implement a finite state machine (TCP does).
If you want to see IP addresses instead of host names and port numbers instead of service names do a netstat -n. You will see something like:
TCP 192.168.1.1:139 192.168.1.1:0 LISTENING
There are more details to this, which I don't think you want to hear now... |
|
|
|