sysadmin Linux Ubuntu project devops Ruby Windows perl script firefox OpenSolaris ssh vbscript ccdc Apache Debian iscsi Fedora FreePanel zfs funny security TraceMonkey beta random Drupal wireless error eee Capistrano chef libvirt juniper git aws tips ssd networking tmpfs tutorial cifs social networks atheros Adobe AIR Pandora samba umount rsync automated benchmarks flash errors phoenix Chrome V8 backup backdoor intrepid JavaScript upgrade