Hi allz,

Here is my situation.I am running slackware,I am connecting to my gateway through Ethernet and its running on DHCP and giving me the same IP whenever I start my computer and assign the IP to eth0.I have another ethernet card (eth1).I want to connect another PC(webserver) for my practise work through eth1 .so how can I do this to connect to that webserver and use net through eth0 also.

Diagram :

Internet----->Gateway+DHCP Server---->my system (with eth0 & eth1)-----> Local Webserver

Hi,

if you want to use the first box with the two ethernet devices as 'man in the middle' like this:
('Gateway' - '2 Ethernet Device Box' - 'second Box')

You should search for how to configure you 'man in the middle' box as a bridge or better as a NAT-router.

To make sure I understand: You want your webserver to be accessible from the Internet and you want your "my system" box to have Internet access?

I would think "my system" should already have Internet access. To make your webserver accessible from the Internet you need to set up DNAT on your Gateway and tell it to use "my system" as the gateway for your webserver (check the manufacturers documentation) to forward incoming connections to your webserver, and you need to enable ip forwarding in "my system." Both eth1 and the Webserver use static IP addresses?

There are several ways to enable ip forwarding. One way is to add

to /etc/sysctl.conf.

Have you considered simply connecting your webserver directly to the Gateway? I would think that would be (slightly) simpler.

Currently I want to access my webserver for learning purposes and dont want others to access it.How can I do it and do it as you said with man-in-the-middle-box situation.

Thanks For quick response

So this is simple, simply connect the eth1-device from the 'man-in-the-middle' with a cross-over-cable to the second machine.

then configure the ip from eth1 like this:

man-in-the-middle-box 192.168.5.4
http-server 192.168.5.5

with a subnetmask say 255.255.255.0.

then start the http-server on 192.168.5.5 and try to connect within you browser on the 192.168.5.4-box to http://192.168.5.5.

This should work if your http-server is listening on Port 80.

Good luck