I'll try to take a quick try at a howto. This assumes that your Linux and
Windows computers are connected with a TCP/IP class C network, 192.168.1., and
that is already working.
1) Download the diald '.rpm' package from "http://rpmfind.net". Install it
as root like so:
rpm -i diald.rpm
2) edit the "/etc/diald.conf" file to look something like this, without the
comments (of course):
mode ppp <-- We will be using a ppp connection
connect /etc/diald/connect <-- This is the chat script to connect to the ISP
device /dev/modem <-- Serial device your modem is attached to.
speed 115200 <-- Max speed serial port and modem can use.
modem <-- Treat the serial device as a modem
crtscts <-- Specifies hardware handshaking with modem
local 192.168.0.1 <-- Address of dummy network interface.
remote 192.168.0.2 <-- Address of dummy gateway.
-buffer-packets <-- Switch off packet buffering
buffer_size 0 <-- Really try to switch it off
defaultroute <-- Dummy interface will be default route
fifo /etc/diald/diald.ctl <-- fifo for communication with diald daemon
include /usr/lib/diald/standard.filter <-- Packet monitoring specification file
Notes: Make sure the dummy network interface is NOT part of your local network.
For example, my local network is a class C network (netmask 255.255.255.0)
addresses 192.168.1.0 through 192.168.1.254.
If you are running Redhat 6.2, add "noauth" to the "/etc/ppp/options" file.
Diald will NOT work if you don't do this.
3) Next you will need to use IP chains to set up IP masqeurading. Here is my
"/etc/sysconfig/ipchains" file:
:input ACCEPT
:forward DENY
:output ACCEPT
:acctin -
:acctout -
:acctboth -
:inp -
:out -
:fwd -
:IpFwAdM! -
-A input -s 0.0.0.0/0.0.0.0 -d 0.0.0.0/0.0.0.0 -j ACCEPT -f
-A input -s 0.0.0.0/0.0.0.0 -d 0.0.0.0/0.0.0.0 -j acctin
-A input -s 0.0.0.0/0.0.0.0 -d 0.0.0.0/0.0.0.0 -j acctboth
-A input -s 0.0.0.0/0.0.0.0 -d 0.0.0.0/0.0.0.0 -j inp
-A forward -s 0.0.0.0/0.0.0.0 -d 0.0.0.0/0.0.0.0 -j ACCEPT -f
-A forward -s 0.0.0.0/0.0.0.0 -d 0.0.0.0/0.0.0.0 -j fwd
-A output -s 0.0.0.0/0.0.0.0 -d 0.0.0.0/0.0.0.0 -j ACCEPT -f
-A output -s 0.0.0.0/0.0.0.0 -d 0.0.0.0/0.0.0.0 -j acctout
-A output -s 0.0.0.0/0.0.0.0 -d 0.0.0.0/0.0.0.0 -j acctboth
-A output -s 0.0.0.0/0.0.0.0 -d 0.0.0.0/0.0.0.0 -j out
-A fwd -s 192.168.1.0/255.255.255.0 -d 0.0.0.0/0.0.0.0 -j MASQ -m 10001
-A IpFwAdM! -s 0.0.0.0/0.0.0.0 -d 0.0.0.0/0.0.0.0 -m 10000
-A IpFwAdM! -s 0.0.0.0/0.0.0.0 -d 0.0.0.0/0.0.0.0 -m 10002
Start IPchains:
/etc/rc.d/init.d/ipchains start
4) Edit your "/etc/diald/connect" script and supply your login information.
Test it by simply invoking it from a command shell:
sh /etc/diald/connect
5) Start diald:
/etc/rc.d/init.d/diald start
Verify that "diald" is working by checking for the dummy interface:
/sbin/ifconfig
If it's there, then try to ping an address outside of your local network, i.e.
ping 208.211.173.30
This should cause "diald" to connect to your ISP, and start pppd.
------------- Performance tips -----------------------------
Run a local caching proxy on the Linux computer like "squid", and point all
your browsers to it.
Set up a caching DNS server on the LInux computer and point your clients to it.
This will reduce the DNS lookup traffic over the dialup link.
Edit the "/usr/lib/diald/standard.filter" file to change the timeouts to
something like 600 seconds. In particular, the default timeout of 120 seconds
for tcp.www is not enough time to read a news page before diald closes the link.
On Sun, 06 Aug 2000, you wrote:
> Okay List, no activity for a while, I'll add some.....
>
> I have two computers, one operates as a Linux server, the other as a Windows
> workstation, I want to move the modem from the Windows box to the Linux box,
> mostly to see if it can be done. I would like to move more and more
> internet to the Linux box, like operating it as a mail server and news
> server, as time goes on.
>
> Anyone know of a simple step by step guide on how to set this up, I am sure
> such a pass through connection is a very common occurance. If not, anyone
> want to write one, sort of a daild for morons. I have noticed that most
> HOWTOs are either very specific or very old.... I don't really have much
> time to get this working, I would have to give up, if it can't be done in a
> couple of hours.
>
> Paul
>
>
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> To unsubscribe from this list: send the line "unsubscribe linux-diald" in
> the body of a message to [EMAIL PROTECTED]
--
=============================================================
John D. Robertson, Computer / Engineering Consultant
Robertson & Robertson Consultants, Inc.
3637 West Georgia Rd.
Pelzer, SC 29669
Phone: (864) 243-2436
Fax: (864) 243-3023
Email: [EMAIL PROTECTED]
WWW: http://www.rrci.com
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