It's impossible with clean apache to limit max connection per VHost limit. With mod_limitipconn it works for me, so it may be worth to make ebuild for it. There is a patch for apache which changes scoreboard a little so user using proxy servers are treated correctly (it uses 'Via' Header). More info (module & patch homepage) - http://dominia.org/djao/limitipconn2.html Reproducible: Always Steps to Reproduce: 1. 2. 3.
How about you do a little work for us then, and provide a patch to the latest ebuild in portage. That will help us along. Sorry but "Hi, here's something I like, please add it, and oh by the way do all the work for me, thank you" isnt very pleasant thing to see over and over. If you're willing to help speed things along, your request will be looked upon much more favourably.
module has been added to cvs, if you can give us a url for the vhosts limits patch, re-open this bug and attach the patch to it. Thanks for the bug report.