Re: [gentoo-user] Re: OT: iptables w/ 2 web servers

[Stroller]

On 24 Sep 2009, at 16:30, James wrote:
> ...
> So the best I can do is forward all traffic( 80, 443, etc) for the
> group of websites to a proxy behind the firewall, then use software
> such as what kashani suggested (proxypass, Squid, ngnix,
> lighttpd, or Varnish) and parse the traffic with some form of
> vhosts implementation on a single server (nated IP)?

I think you can simply forward to server A. If the site is on server A  
then it's served, if it's on server B then in the vhosts for that site  
on server A you can proxy for server B. Of course if server A goes  
down then you're stuffed.

> Then if the load of the combined virtual hostings becomes too large,
> I use a group (cluster) of servers that and implement some sort of
> load
> balancing across the machines that each contain complete copies of
> each website?
>
> Then there is the question of how to keep the individual machines
> 'in sync' and the limitation that once a machine is saturated
> (performance
> suffers too much due to insufficient  resources) there
> is no solution for expansion?

This surely exceeds what you'll be hosting on a NATted home connection?

> One last thing. I can get a small subnet of say 5 IP address from my
> ISP for an additional 20/month. That that help me? I want to put up
> dozens of small charitable web sites. None will have a huge user base,
> but I was going to stream some limited video from each of them.

Yes, this certainly overcomes the original problem. You have a  
separate IP for each server and the DNS for each site directs  
appropriately.

Not all routers support this configuration and, 5 years ago, I found  
it a little cumbersome to set it up in Linux (it's called "bridging").  
No doubt the situation has improved a lot since then.

Stroller.