Simple Steps to Use Yum Rollback on Centos / RHEL 5 Some nice instructions on a simple backup/rollback technique for packages on Centos / RHEL 5. This can be accomplished even more easily in newer versions of yum, such as on Centos / RHEL 6, which the ‘yum history’ command. There’s a nice undo feature there now, that makes it trivial to revert a change, if you have problems with a package update for any reason.

Old Article Comments I exported these from my old wordpress blog, so they are a bit out of date, but I thought I’d keep them around for posterity. [Andy Dorfman] - Apr 5, 2014 Excellent article. Do you think this setup will work to load balance/failover several nonclustered weblogic instances. In my current setup, i have apache rp listening on port 443 with ssl termination and forwarding everything to weblogics, listening on port 80.

Although I have worked with enterprise envrionments running Oracle and SQL Server for quite a few years, I’ve yet to be involved in a real high-availability deployment. This has been for a variety of technical reasons in our company’s application, and a lack of interest from most customers. Recently, I explored options and had the opportunity to test some load balancing setups for our application servers at a customer site. I was impressed with the reliability and reputation of the HAproxy software, so had a look at that to begin with.