And then for Oracle HTTP Server...

I needed to put APEX (Application Express), version 3.2.1, on this same CentOS box.

I followed the installation instructions (for 3.2) found over at Oracle, then needed the HTTP server.

This is on the 10g database companion CD. Installing that went finely (once I'd decided to install it into a different home from the database) until one of the configuration-wizard steps failed.

The log pointed me to another (httpd) log, which said libdb.so.2 was missing.

The solution to that is to run:

ln -s /usr/lib/libgdbm.so.2.0.0 /usr/lib/libdb.so.2

and then retry the configuration-step.