I am happy to announce: hack.thebackupbox.net joined the wechall network. This site is a bit different from the other sites listed here. First, the site is hosted on one of epoch_qwert's boxes at home, so the connection is sometimes a bit slow. Secondly the challenges differ a lot from the usual stuff here; thebackupbox offers "shell" challenges. You connect via SSH to the (NetBSD) box and exploit programs to escalate priviledges. Many thanks for joining us and Happy Challenging !