[...] > But, I don’t just need to know if a module is available: once the module is loaded, its available for all virtualhosts. I need to know if the SSLEngine has been enabled within a virtualhost so I can do something like the following: mod_ssl sets the environment variable HTTPS to "on" if the current request was received via https. You should be able to use the "env=" conditions for Header set to get your example to work as intended. https://httpd.apache.org/docs/2.4/mod/mod_ssl.html#envvars rainer --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx