On Fri 11 Jul 2003 at 11:53:36, Travis Stevenson said: > Out of curiosity how would do the tunnel machine. Would it be a proxy? How > would you tell the difference in which host to go to?
You can do it a number of different ways. You can use Apache's mod_proxy, set up in reverse, to serve from redundant machines. You can use a box with IP forwarding rules (via iptables on Linux or pf on OpenBSD). You could do a reverse squid proxy. You can use a specialized load-balancer like Foundry's ServerIron or Cisco's CSS. The disadvantage of these are that they're still single points of failure; if you lose the load balancer, then everything goes down. Round-robin DNS (pointing one hostname to multiple IP's on multiple machines) is much more robust, because if you lose one machine, the others will take over. -- Soren Harward [EMAIL PROTECTED] ____________________ BYU Unix Users Group http://uug.byu.edu/ ___________________________________________________________________ List Info: http://uug.byu.edu/cgi-bin/mailman/listinfo/uug-list
