My knowledge is a bit rusty and my previous configuration got lost during a mistake in a migration process. A few questions to appear in a series to get it back again. Nr 6:
In addition to the previous question http:Q_24356129.html
I would like these error pages to be slightly programmable, but I know that it is not a smart idea to use some cgi or scripting (php/perl whatever) for it, since an error might be caused by the absence or inaccessibility of either of them. Would something like SSI do (all I need to know is customize a bit based on some environment variables and the current host) or are there other reasonable alternatives that have a small chance to fail?
I understand I should never use this on HTTP 500 errors, for obvious reasons. In case an error page has an error itself, what will the apache server do and what will the user see?