Re: A way of setting up a computer for routing *just* port 113?

2004-03-28 Thread Alexis Huxley
 Would it be possible to setup, say, my desktop machine, or any other 
 Debian machine, to be a router for *just* port 113? So I could forward 
 port 113 on the WAN to that machine, and then that machine could 
 automatically share port 113 with any machine on the home LAN? This 
 would include the Windows boxes that form the unfortunate majority on 
 the LAN. If so, what would be the requirements?

Okay, so your router-box-thing *always* forwards 113 to the Debian box,
and the Debian box is then intelligent enough to know to which of your
other home machines to send the request? Which depends on it having seen
the outgoing request that triggered the remote end's IDENT request.

I know that masquerading/NAT with 'ipchains' supports *some* sort of
'related' traffic (like control and data ports on FTP connections), but
I am pretty sure that it would not spot that the incoming IDENT request
is related to the previous outgoing IRC client connection request.

But ... there is a program 'mident' for providing IDENT support on
networks with masquerading, for doing something like this. Check
http://packages.debian.org/cgi-bin/search_packages.pl?keywords=midentsearchon=namessubword=1version=allrelease=all

Perhaps that will help you.

Alexis


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A way of setting up a computer for routing *just* port 113?

2004-03-27 Thread Joseph Jones
My router, which is not a computer, but rather an unbranded little 
plastic box, will only allow ports to be forwarded to one IP on the 
LAN's Class C subnet. This causes a problem when trying to use ident, 
which uses port 113, as it means that only one computer in the house may 
use ident without resetting the router.

Would it be possible to setup, say, my desktop machine, or any other 
Debian machine, to be a router for *just* port 113? So I could forward 
port 113 on the WAN to that machine, and then that machine could 
automatically share port 113 with any machine on the home LAN? This 
would include the Windows boxes that form the unfortunate majority on 
the LAN. If so, what would be the requirements?

Please understand I'm no expert with networking *or* Debian, but I know 
enough to setup small LANs and am generally capable of following 
instructions :)

Many thanks in advance :D

Joe

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Re: A way of setting up a computer for routing *just* port 113?

2004-03-27 Thread Jeff Noxon
It sounds like you just need to install one of the fake identd packages,
like nullidentd, and make your router forward port 113 requests to that.
nullidentd will always answer foobar to any request.  I run it on my
router (a Debian machine) to fool silly IRC servers which require an
ident service before you can connect.

There isn't any way to share the port like you suggest.  Perhaps if you
explain why you need ident to work (it is almost never needed at all),
someone can help more.

Regards,

Jeff

On Sun, Mar 28, 2004 at 04:06:24AM +0100, Joseph Jones wrote:
 My router, which is not a computer, but rather an unbranded little 
 plastic box, will only allow ports to be forwarded to one IP on the 
 LAN's Class C subnet. This causes a problem when trying to use ident, 
 which uses port 113, as it means that only one computer in the house may 
 use ident without resetting the router.
 
 Would it be possible to setup, say, my desktop machine, or any other 
 Debian machine, to be a router for *just* port 113? So I could forward 
 port 113 on the WAN to that machine, and then that machine could 
 automatically share port 113 with any machine on the home LAN? This 
 would include the Windows boxes that form the unfortunate majority on 
 the LAN. If so, what would be the requirements?
 
 Please understand I'm no expert with networking *or* Debian, but I know 
 enough to setup small LANs and am generally capable of following 
 instructions :)
 
 Many thanks in advance :D
 
 Joe


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