[Linux-HA] Failover 2 servers multiple IP's and SSL

Tom Potwin wxman2 at gmail.com
Mon Jul 20 08:00:43 MDT 2009


Hi

So how do you handle separate SSL IP's in this situation? What is needed to
do simple failover for a single server?

Thanks

-----Original Message-----
From: Andrew Beekhof [mailto:andrew at beekhof.net] 
Sent: Monday, July 20, 2009 4:05 AM
To: wxman2 at gmail.com; General Linux-HA mailing list
Subject: Re: [Linux-HA] Failover 2 servers multiple IP's and SSL

On Sat, Jul 18, 2009 at 4:53 PM, Tom Potwin<wxman2 at gmail.com> wrote:
> Hi
>
> I've searched all over, and just gotten more confused. I need to set 
> up a auto failover for my primary server. I have the same system 
> backed up on to my second server in real time already. Both servers 
> have two NIC's; one for the network connection to my firewall/router, 
> and the other is just for the replication. I have a few sites that use 
> SSL certificates, so I'm using separate public IP's on my router, 
> matched to separate private IP's on the server. The addresses look like
this:
> 192.168.31.202 - This is the main server address, also used for the 
> common web sites that have no SSL's
> 192.168.31.203 - SSL site 1
> 192.168.31.204 - SSL site 2
> 192.168.31.205 - SSL site 3
> The secondary server uses 192.168.31.212 as the main server IP.
>
> What's confusing me is how do I make a setup that will detect the 
> primary is down, switch to the secondary, then change the secondary 
> IP's to be like the primary's.

It can't and shouldn't do this.
The IPs that get moved around need to be additional ones and not owned by
the machines themselves.

> I've found all kinds of tutorials to set up heartbeat, but I can't 
> find details on this kind of set up. Am I looking for the wrong thing?
> Is heartbeat unable to do this? Do I need another software with it? 
> The only thing I keep finding is load balancer setup's using a master 
> IP address, but I don't need a load balancer, and I can't use a single 
> master IP because of the SSL's.
> Please help, I'm getting a headache.
>
> Thanks, Tom
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