Redundant Internet Connections Using Linux

Posted by tuxchick on Nov 6, 2005 2:06 AM EDT
SysAdmin Magazine; By Seann Herdejurgen
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With the advent of high-speed Internet links from Internet Service Providers (ISPs), it's easier for users to host services on their home computers. But what happens when your ISP connection goes down? An obvious solution is to have a redundant Internet connection from another ISP. To help set up a Linux host with redundant Internet connections, this article covers the following essentials:

1. Configuring the host to properly handle inbound network connections from multiple ISPs

2. Load-balancing outbound network connections

3. Configuring various services to enable redundancy

4. Configuring firewall protection using ipchains or iptables

[Ed.- Linux has all the tools to implement just about any kind of networking scenario- you don't need to spend megabucks on pricey commercial widgets.]

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