android apache backup browserid catalyst conference cryptmount csp database debian django dns dnssec ejabberd emacs fetchmail firebug firefox gaia gaming gargoyle gearman gecko gerrit git github gnome grub gstreamer hsts html5 http i3 indieweb ios iptables ipv6 irc irssi launchpad letsencrypt libravatar linux lirc luks lvm lxc mahara mercurial mozilla mpd mutt mythtv nginx nodejs ntp nzoss openvpn openwrt optimisation osx owasp packaging plupload postfix postgres privacy privoxy programming publicspeaking python rackspace raid rt sane security ssh ssl sysadmin systemd thinkpad tor ubuntu vlc vnc web wine xmpp