Before installing the load balancer plug-in for Apache, apply the patch for the Apache Web Server issue 12355. More details about this issue are available at http://issues.apache.org/bugzilla/show_bug.cgi?id=12355. This patch is required for the Auto Apply feature to work. To apply the patch, follow these steps.
Untar http-2.0.59.tar and go to the directory httpd-2.0.59.
Download the patch from http://issues.apache.org/bugzilla/attachment.cgi?id=16495 and save it as a file, for example, 12355.diff.
From the directory httpd-2.0.59/modules/ssl, run the following command:
patch < 12355.diff