[ILUG] Linux, Internet-connection with ISDN-adapter

[Conor Daly]

diald will do that for you.  It creates a virtual gateway to the internet,
watches for traffic on that and dials up the internet when required.  For
security, you need to look at IPchains.  This can set up a firewall on your
router machine for when you're connected.  It will also look after IP
Masquerading which is necessary to allow clients to connect to the internet
through the server (but you say you have done this already).  I found it
necessary to set up a local DNS on my server also to avoid connections to
the internet when a client just needed to know about a local machine.  Then
all you need to do is set each client to look to your server IP as its
gateway and DNS server.

I'm writing a HOWTO on the subject but it's very incomplete at present.  You
can find it at
http://www.geocities.com/conor_daly/
I would be grateful for your input on using an ISDN adapter (I only have a
standard phone line and modem) especially anything on using the second ISDN
channel.  I would like to incorporate such information into the HOWTO.  The
HOWTO is essentially a gathering together of information found in a series
of HOWTOs from the Linux Documentation Project (LDP) at www.linuxdoc.org

Hope this helps.  I can send you some diald configuration samples if you
like.  Email me if you want them.

---
Conor Daly

Ph   +353 1 8326146

conor.daly at oceanfree.net
------------------------------------------
-----Original Message-----
From: Anders R. Sæbøe <treig at online.no>
>
>As I said, I don't have an ISDN-card but an adapter, like a modem,
connected
>to my ttys1 (com2, isn't it?). The whole thing works in my redhat 6.2. I
use
>minicom to call, then exits that and types pppd. I distribute my connection
>to the whole house, and so far so good. The problem is that I want them to
>be able to connect from their computers using an automated program/script
>that does everything right for them, and don't leave me with too many
>security issues. The clients are running windows 98. Also, can I set up an
>ordinary chat-script with this ISDN-adapter? I am never prompted for login
>or password, I think.
>