I am `Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.117 Safari/537.36 SUSE/33.0.1750.117` and a recent one listed there is `Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.22 (KHTML, like Gecko) Ubuntu Chromium/25.0.1364.160 Chrome/25.0.1364.160 Safari/537.22` so I think this should be matching Debian or Linux and SUSE or Fedora http://user-agent-string.info/list-of-ua/os-detail?os=Linux%20(Fedora)