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#1 (**permalink**) 02-19-2008, 05:47 PM

Hello everybody
we have a SlackBox without tcpdump. We want to check every hour ho
the box is working with an Oracle DB (TCP connection on prt 1521). S
every hour we do a 'netstat -an|grep 1521|grep ESTABLISHED'. But w
would like to collect other statistics such as the number of packet
gone through that machine. We don't have tcpdump nor iptables. Is i
possible to extract information about the packets gone through tha
box from/to the port 1521 with netstat or other tools
Thanks a million

Valerio Daell

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#2 (**permalink**) 02-19-2008, 05:49 PM

trenteldon <eldontrent@tiscali-dot-it.no-spam.invalid> wrote:
> But we
> would like to collect other statistics such as the number of packets
> gone through that machine. We don't have tcpdump nor iptables. Is it
> possible to extract information about the packets gone through that
> box from/to the port 1521 with netstat or other tools?

Total packets through an interface can be found with ifconfig. For
a particular port, the only thing I can think of offhand is ntop. ntop
seems kind of heavyweight if that's the only information you want, but
it would work. See http://www.ntop.org.

JDW

#3 (**permalink**) 02-19-2008, 05:51 PM

Jeremiah DeWitt Weiner wrote in news:crk0ki$a3g$1@reader1.panix.com:

> Total packets through an interface can be found with ifconfig. For
> a particular port, the only thing I can think of offhand is ntop. ntop
> seems kind of heavyweight if that's the only information you want, but
> it would work. See http://www.ntop.org.
>
> JDW
>
>

Thnx for the tip on ntop. Great tool, but i found it to be heavy demanding
on sytem mem. Are there any more tools out there that generate nice html
output but are much less demanding to the system ?

Thnx in advance.

#4 (**permalink**) 02-19-2008, 05:52 PM

Maarten wrote:
> Thnx for the tip on ntop. Great tool, but i found it to be heavy demanding
> on sytem mem. Are there any more tools out there that generate nice html
> output but are much less demanding to the system ?

I like vnstat - runs as a normal user from cron, as often as you want -
http://humdi.net/vnstat/ - you could periodically dump the output of a
query in a site directory - they have output examples on the page.

Kind Regards,
Michael

#5 (**permalink**) 02-19-2008, 05:52 PM

exlt wrote in news:SmcEd.12889$by5.9166@newssvr19.news.prodigy.c om:

>
> I like vnstat - runs as a normal user from cron, as often as you want
> - http://humdi.net/vnstat/ - you could periodically dump the output of
> a query in a site directory - they have output examples on the page.
>
> Kind Regards,
> Michael
>

Thank you very much, vnstat looks good.

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