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add brief section on rewrites
* Flags: No Case, Last, Redirect permanent, No Escape <ref>https://httpd.apache.org/docs/current/rewrite/flags.html#flag_ne</ref>
* Response Code: 301 = Permanent <ref>https://tools.ietf.org/html/rfc2616</ref>
== Rewrites ==
Use .htaccess ONLY for testing rules on-the-fly during development
so that you don't have to constantly reload Apache.
Once the rule is tested and works, it should be placed into the
proper Virtual Host configuration file.
e.g. /etc/apache2/sites-available/foo.conf
This is because the conf gets loaded into memory once during
startup whereas the .htaccess file needs to be loaded
FROM DISK on every single request. This slows a web
server. So, don't even leave .htaccess files lying around
empty. Nuke 'em.
See https://httpd.apache.org/docs/2.4/rewrite/tech.html
about the differences between per-directory context.
Basically, the path as seen in .conf will start with /
whereas the path as seen by .htaccess in / will have the
leading slash stripped already. That's why we use <code>^/?</code>
to make rules work in both contexts. But rules further down
the filesystem hierarchy will have a greater difference
between the .conf version and the .htaccess version (or
you can place the rules in a <directory> stanza)
== Secure Server ==
