Re: Backup Web Server
On Mon, Nov 25, 2002 at 02:17:22PM -0500, Steve Mickeler wrote:
>
> Theres a couple of ways you can do this.
>
> 1) round robin dns : 2 servers with their own IP's, each serving up the
> website. If one goes down, you still get a 50% success rate.
>
> 2) VRRP via keepalived - http://www.keepalived.org/ : 2 servers, 1 real
> floating IP that is bound to the active server. If the active server dies,
> the IP's are picked up by the standby server and keeps on going.
>
> 3) LVS ( Linux Virtual Server ) http://www.linuxvirtualserver.org/ : This
> is the most involved setup but will also give you the most scalability and
> availabilty by creating farms of local servers that the inbound requests
> are balanced across. It can also do enhanced checks on the local servers
> to make sure that only healthy nodes are answering requests.
You make it sound as if #2 and #3 are disconnected. But reading the
web site for #2 makes it sound as if it only works *with* LVS. Is
that not true?
Jeremy
--
Jeremy D. Zawodny | Perl, Web, MySQL, Linux Magazine, Yahoo!
<Jeremy@Zawodny.com> | http://jeremy.zawodny.com/
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