Security Basics mailing list archives

Re: Weird TCP 1755 port on freebsd box


From: Jackson Alley <toomanymirrors () yahoo com>
Date: Wed, 8 Oct 2003 14:49:34 -0400

You can also check using FreeBSD's sockstat which i love :)

just had to plug that part of FreeBSD but it also seemed useful

TooManyMirrors
On 2003.10.06 16:12, Ranjeet Shetye wrote:
On Fri, 2003-10-03 at 16:27, Rick Zhong wrote:
> hi, all
> this is really strange. I detected opened 1755 (wms) port on my
freebsd box.
> (i use nmap to scan and also verify it using telnet to the port.)
However i
> cannot find  any services which is using this port on my server. (it
seems
> all the machine in this IP range opens 1755 port according to nmap,
this
> is very weird)
>
> Also i tried to block the incoming traffic to this port by adding
(deny from
> any to myaddress 1755 ) to my ipfw rules , but it seems i can still
reach
> the port. Meanwhile snort also detects a lot of cyberkit ICMP
(Welchia i
> believe) packets targeting at port 135 on my server.
>
> Anyone can give me some enlightment on this . thanks.
>
> regards,
> Rick
>
>
>
>
>
> --------------------------------------------------------------------------- > ----------------------------------------------------------------------------

what does netstat -tupan tell you ?
--

Ranjeet Shetye
Senior Software Engineer
Zultys Technologies
Ranjeet dot Shetye2 at Zultys dot com
http://www.zultys.com/

The views, opinions, and judgements expressed in this message are
solely
those of the author. The message contents have not been reviewed or
approved by Zultys.



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