Re: Port Zero

Ron <[email protected]>
Newsgroups gmane.comp.security.incidents
Message-ID <[email protected]>
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Looks to me like it's not set.  Because there's no active connection,
there's no foreign address.

A socket that's listening won't have a foreign address set, and a socket
that's connected will.

I noticed on Linux, it looks like this:
iago@darkside:~$ netstat -a | grep LISTEN
tcp        0      0 *:8001          *:*                LISTEN
tcp        0      0 *:3306          *:*                LISTEN
tcp        0      0 *:http          *:*                LISTEN
tcp        0      0 *:ssh           *:*                LISTEN
tcp        0      0 *:https         *:*                LISTEN

Probably 0.0.0.0:0 is just Windows's way of saying "not set"?

[email protected] wrote:
> Active Connections
> 
>   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    0.0.0.0:1025           0.0.0.0:0              LISTENING
>   TCP    0.0.0.0:1028           0.0.0.0:0              LISTENING
>   TCP    0.0.0.0:1054           0.0.0.0:0              LISTENING
>   TCP    0.0.0.0:1307           0.0.0.0:0              LISTENING
>   TCP    0.0.0.0:1344           0.0.0.0:0              LISTENING
>   TCP    0.0.0.0:1445           0.0.0.0:0              LISTENING
>   TCP    0.0.0.0:1447           0.0.0.0:0              LISTENING
>   TCP    0.0.0.0:1452           0.0.0.0:0              LISTENING
>   TCP    0.0.0.0:1453           0.0.0.0:0              LISTENING
>   TCP    0.0.0.0:1455           0.0.0.0:0              LISTENING
>   TCP    0.0.0.0:1460           0.0.0.0:0              LISTENING
>   TCP    0.0.0.0:1465           0.0.0.0:0              LISTENING
>   TCP    0.0.0.0:1466           0.0.0.0:0              LISTENING
>   TCP    0.0.0.0:1469           0.0.0.0:0              LISTENING
>   TCP    0.0.0.0:1491           0.0.0.0:0              LISTENING
>   TCP    0.0.0.0:1496           0.0.0.0:0              LISTENING
>   TCP    0.0.0.0:1498           0.0.0.0:0              LISTENING
>   TCP    0.0.0.0:1507           0.0.0.0:0              LISTENING
> 
> Above is the output of netstat -an |more
> 
> Guys / Gals Do you know what means port zero in Windoze Platform ? I know the answer but jst wanted to know anyone has a better explaination.
> 
> In Unix Family port zero is used for socket programming but not the same in Windoze family.
> 
> I have asked this question in many programs of mine in CEH - Certfied Ethical Hacking but still awaiting for answers. Lemme see if can get some answers for this post!!!!
> 
> Ciao
> 
> Baba
> CEO
> Appsec
> 
> 
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