Find data transfer on a particular port

[nanard]

Hi,

For instance, to know who is connected to port 993/tcp(IMAPS), you can use
"lsof":

crysto# lsof -ni |grep imaps
inetd       276     root    4u  IPv4 0xccb15b80      0t0  TCP 10.1.1.5:imaps
(LISTEN)
imapd     20016     root    0u  IPv4 0xccb142c0      0t0  TCP
10.1.1.5:imaps->192.168.10.42:3194 (ESTABLISHED)
imapd     20016     root    1u  IPv4 0xccb142c0      0t0  TCP
10.1.1.5:imaps->192.168.10.42:3194 (ESTABLISHED)

You have the name of the process (imapd) and the PID (20016) of the
connexion.

Regards,

----- Original Message -----
From: "Sunil Sunder Raj" <unixtools at hotmail.com>
To: <freebsd-isp at freebsd.org>
Sent: Monday, November 17, 2003 1:52 PM
Subject: Find data transfer on a particular port


> Hi,
>
> How does one find the data transfer on a particular port. You can find the
> data transfer on the whole server. But how to calculate which service/port
> is transferring the data.
>
> Regards
> SSR
>
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