System

https://calomel.org/openssh.html Example on how to setup 2 factor authentication with OpenSSH using “ForceCommand” script

https://calomel.org/openssh.html Example on how to setup 2 factor authentication with OpenSSH using “ForceCommand” script

https://calomel.org/openssh.html Example on how to setup 2 factor authentication with OpenSSH using “ForceCommand” script

http://pastebin.com/gAs4EkyG Example of perl exploit script that runs on a compromised web server and provides remote shell, http proxy and DDoS agent. Works on *nix and windows

http://pastebin.com/gAs4EkyG Example of perl exploit script that runs on a compromised web server and provides remote shell, http proxy and DDoS agent. Works on *nix and windows

http://www.datacenterknowledge.com/the-facebook-data-center-faq-page-3/ article about facebook infrastructure, the 3rd page contains links to different videos and presentations by facebook engineers

http://downloads.polycom.com/voice/voip/sip_sw_releases_matrix.html SIP Firmware for Polycom SoundPoint IP Phones and conf. devices

http://nuclight.livejournal.com/125747.html A way to detect BT protocol traffic – instead of looking at every packet, traffic to torrent tracker websites is redirected (via divert(4) ) and then analyzed. Analyzer script (PERL) produces the src_ip, dst_ip, dst_port triplet, this info can be used to produce firewall rules

http://openvswitch.org/ right now ppl are using linux bridges as virtual switches for XEN/KVM VMs. Open vSwitch is an improvement over linux bridge that supports industry standard protocol and features and IOS-like CLI – [when project matures] ]you should be able trunk your VM server with cisco switch and expand it into the server with all features supported and backed by a standard config.

http://www.ibm.com/developerworks/linux/library/l-linuxboot/ [short] reference for linux boot process