According the the Apache URL rewriting guide, the way to handle Canonical Hostnames is like this:

Well, those rules are not always sufficient. Specifically, what if you also owned the www.example.com.au domain, and wished to redirect it also to the primary www.example.com domain? The solution is simple - we just need to add a single $ character to the end of the match-pattern of the first RewriteCond like this:

Now that will work nicely as long as the hosts use standard ports (ie 80 for HTTP, and 443 for HTTPS). However, some Python versions unnecessarily append the standard HTTPS port number to the Host HTTP header. Also I discovered today (after some Apache debug logging) that Adobe AIR applications have the exact same misbehavior for HTTPS, but only when running under Mac OS X.

Last night I received some pretty exciting (to me) news about something that's just been released on Adobe's pre-release site (which I am a member of)... unfortunately I can't say what it is yet (I've been sworn to secrecy), but it will likely help with a number of technical issues I'm currently facing in a major project at work, so I'm very happy with the timing! :)

I'm currently sitting in (and posting from) the first Adobe AIR Camp in Australia... there's not much going on yet, but the day is young! :)

Currently, Andrew Spaulding is introducing Flex Builder 3... since I've been using it for some time now, this part's a little slow ;)

Okay, now he's talking about using transparent images for application chrome... getting interesting... better go now :)