/dev/random

Apache mod_rewrite `serve backup' file

when we can’t find a particular static file in its “usual” location, use its alternate.

RewriteEngine On
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} !-f
RewriteCond %{REQUEST_URI}  ^/foo/bar/baz(.*\.png)$
RewriteRule ^/foo/bar/baz/(.*)$  /nfs/foo/bar/baz/$1