IRC: Freenode: #security, ##freebsd, ##hardware, #debian - all good Rizon: #baot As for mailing lists, Full Disclosure for sure, Bugtraq, all the big name security ones have really interesting posts.

>not as powerful as LXC though I think many would completely disagree with this.

The title of the blog is ... "Linux Blog" and the author may very well have no time/resources/desire to check whether his writing is also applicable elsewhere.