You’ve enabled mod_deflate either via apxs as a module, or by recompiling httpd as a whole, but alas, no compression.
You’d like to add mod_security to your custom apache+mod_php build. The package requires a recent version of libxml2 which must be installed in parallel. Once compiled, httpd is unable to start as a result of missing symbols.
MySQL on RDS has its pros and cons. Only your organization can decide if the solution meets your needs. Migrating from a traditonal MySQL database to RDS may not be a simple task.
Generating meaningful hostnames without human intervention.
I wrote a document about migrating RHEL/CentOS xen hosts to VMware .
I hope this helps someone. PDF.