Domain fronting has been around for years and I’ve always understood the concept but never actually looked at exactly how it works. That was until recently when I did some work with Chris Truncer who had us set it up as part of a red team test. That was the point I had to get down and understand the actual inner workings. Luckily Chris is a good teacher and the concept is fairly simple when it is broken down into pieces.
Article Link: https://digi.ninja/blog/domain_fronting.php