> You can configure your load-balancers to have sticky sessions, or > route > traffic however you like. The only problem is price, and is it > overkill for > this situation. Your IP change is the cheapest and simplest. It will > also > have a period of downtime until you can get to the server to make the > switch. Also, you want to configure your first machine to _not_ come > up and > grab the prod IP address. So, just some logic that would: > > 1. run a hearbeat from the backup server which checks the health of > the prod > server > 2. If the prod server is unavailable: configure a NIC with the prod IP, > and > bring it up. > 3. on the prod server, don't bring up the prod IP. > > Just setup multiple IPs on a single nic, and make the prod IP the > secondary > on both boxes: > http://www.linuxhomenetworking.com/wiki/index. php/Quick_> HOWTO_:_Ch03_:_Linux_Networking#Multiple_IP_Addresses_on_a_Single_NIC > > good luck, > speeves > > > On Mon, Sep 14, 2009 at 12:19 PM, Brian Dumbledore <psteja2...@yahoo. > com>wrote: > > > > > >Have had really good luck with Coyote Point load balance hardware. > Set up > > >2 (or more, we had 5) servers running the same apps and then the LB > in > > >front to guide traffic. We used to use client vars (instead of > session > > >vars) to manage user-to-app connections that were seamless even > across > > >server switches. > > > > Thanks for the tip. Quick q, does the LB also support failover? My > concern > > is not loadbalancing, I want only one srever taking all traffic at > any given > > time, I just want the second server to take over when the main > server fails. > > > >
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