It's not but this topic interest me. Would it be advisable to set up a simple web server in a jail and make it internet facing?
If it is possible and doesn't put the rest of the box at a security risk I'd love to know how to set one up for a simple private discussion forum for about 50 people. I've got one set up in virtualbox but I'd rather have it in a jail using nginx, mysql and php. Then again it wouldn't take much to get one running on a raspberry pi either and maybe that's a better option.