ls /proc/sys/net/ipv4/

http://www.frozentux.net/ipsysctl-tutorial/chunkyhtml/tcpvariables.html
http://tldp.org/HOWTO/TCP-Keepalive-HOWTO/usingkeepalive.html
http://www.frozentux.net/ipsysctl-tutorial/chunkyhtml/


deb http://backports.debian.org/debian-backports squeeze-backports main


http://backports.debian.org/Instructions/

http://www.cyberciti.biz/faq/debian-linux-6-apt-get-install-linux-kerne…

https://library.linode.com/networking/openvpn/debian-6-squeeze

http://sandilands.info/sgordon/segmentation-offloading-with-wireshark-a…

http://engineeringmadness.blogspot.pt/2012/05/wireshark-shows-packets-l…

http://support.citrix.com/article/CTX116557

http://blogs.technet.com/b/nettracer/archive/2010/10/01/how-to-decrypt-…

https://www.google.pt/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&sqi=2&ve…

http://www.devside.net/articles/apache-performance-tuning

http://www.mail-archive.com/smokeping-users@lists.oetiker.ch/msg04315.h…

http://timanovsky.wordpress.com/2009/04/10/tuning-linux-firewall-connec…

http://openvz.org/VPN_via_the_TUN/TAP_device

http://wiki.vpslink.com/TUN/TAP_device_with_OpenVPN_or_Hamachi