There is really no public channel that I am aware of. Googling around I see news articles from ABC etc., but those seem to be more of a PR spin on our involvement over there.
The reason that I personally know is that my sister in law and her husband are both in the RAAF and have been deployed in the Middle East a few times (though not Afghanistan).
Australia is one of the least transparent countries with regards to airstrikes. It would be nice if there was public pressure for them to be more transparent.