I have recently compiled apache on a dedicated server, Is it possible to compile mysql and open ssl, without having to re-install apache?

Is there any way to find out what modules have already been compiled into apache.

I suppose you could install mod_ssl as a DSO. MySQL is completely independent of Apache, so you wouldn't have any reason to recompile Apache after you installed mySQL.

Here's how to find a list of the current modules Apache has running: /path/to/apache/bin/httpd -l

cabalstudios, do "httpd -l" to get a list of your compiled-in modules.

cabal,
I believe mysql and SSL are both nondependent on your normal html

mysql -> you can compile independately
SSL -> (I use apache-ssl) its a whole new compiliation and binary and installation.