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SysAdmin: A Linux Internet Gateway

Sep 09, 2000, 16:36 (0 Talkback[s])
(Other stories by Marcel Gagné)

WEBINAR:
On-Demand

Re-Imagining Linux Platforms to Meet the Needs of Cloud Service Providers


"Back in the February 2000 issue, I covered the idea of setting up an intra-office email server using Linux. Designed to work as a standalone email solution for a small or home office, the logical next step is to branch this machine to an Internet connection and bring the office online. Online means many things to many people, but email is still arguably the most powerful reason to provide company-wide Internet access. Consequently, your setup will no doubt require providing email as well as Web-browsing capabilities. You can define who gets access and to what."

"While I will review some of the topics covered earlier, I'll assume that you can refer to the February 2000 issue for how to set up the original mail server. This beginning-level article will show how to configure a Linux system to provide Internet access. I'll also show how to accomplish this for a minimum of cost, with one company sharing a single phone line, a single modem, and a single dial-up account to an ISP. This setup demonstrates the magic of IP forwarding and masquerading - a technique that makes all hosts in a network appear as though they are coming from the single Internet-connected Linux server."

"The setup I will present here is actually comprised of two main components. One is the technical side - the nuts and bolts of using Linux to create this simple, powerful server. The second is more marketing related. I will start with the second component - the search for a friendly ISP begins."

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