Find data transfer on a particular port

[Sunil Sunder Raj]

Hi,
>From mrtg I come to know that my server X is transferring Y mbit/s. But When 
I get into the server, how do I know which service/port is transferring 
maximum data.

Regards
SSR


>From: "nanard" <nanard at tou.nu>
>To: "Sunil Sunder Raj" <unixtools at hotmail.com>, <freebsd-isp at freebsd.org>
>Subject: Re: Find data transfer on a particular port
>Date: Mon, 17 Nov 2003 14:00:05 +0100
>
>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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