If you can find the list of open ports THROUGH a firewall, then you need to replace
the firewall. It has failed in its main task. The only way one should find out about
open ports on a server is to be in the same protection domain as the server.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Ravi Kumar
Sent: Tuesday, March 13, 2001 00:47
To: Mike Glassman - Admin
Cc: 'fw-gnac list'
Subject: RE: How to find out about Open ports on firewall
Mike,
If i use a port scanner then it will tell me the ports
which are open on firewall m/c but how I can find the
open port lists which are open on the server behind
the firewall.
Gm
--- Mike Glassman - Admin <[EMAIL PROTECTED]> wrote:
> Ravi,
>
> Why not simply run a port scanner such as Superscan,
> or Solar Winds IP
> Browser or any other such tool.
>
> These will scan a list of ports starting from
> portnumber to portnumber.
>
> You will then be able to see what is open and what
> not.
>
> Scan either the outside leg or the internall one.
>
> HTH,
>
> Mike
>
> > -----Original Message-----
> > From: Ravi Kumar [SMTP:[EMAIL PROTECTED]]
> > Sent: ã îøõ 07 2001 7:39
> > To: [EMAIL PROTECTED]
> > Subject: How to find out about Open ports on
> firewall
> >
> > Hi,
> > Is there any way through which we can idntify what
> all
> > ports are open on a remote firewall.
> >
> > I'm facing a problem in that my client says that
> port
> > (sqlnet) for a specific servie is open but my
> > application does not work, and I'm dead sure that
> the
> > specific port on clients firewall is not open.
> > So i want a third party tool through which I can
> show
> > them that port is not open( B'cuz if I use my own
> > application to identify that, then client may say
> that
> > ur using ur application which may be design to ur
> > need)
> >
> > Thanks
> >
> > Gm
> >
> > __________________________________________________
_
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