http://jasminklipic.blogspot.pt/2012/05/squid-clamav-debian-squeeze.html

http://fenidik.blogspot.pt/2010/03/ext4-disable-journal.html
http://cybergav.in/tag/ext4-no-journal/

http://2bits.com/articles/high-php-execution-times-drupal-and-tuning-ap…

Fortunately I found the solution here http://thread.gmane.org/gmane.linux.drivers.ndiswrapper.general/3121 , which is to add these lines to /etc/sysctl.conf, and run "sysctl -p" to update the settings:
kernel.shmmax = 67108864
kernel.shmall = 67108864

#aptitude install zenmap
~gksu zenmap

nmap -sS -p 80,8080 -O 188.93.196.0/24

http://serverfault.com/questions/115063/nmap-check-if-port-80-and-8080-…

http://www.cs.wustl.edu/~jain/cis788-97/ftp/virtual_lans/index.htm

killall -9 php; killall -9 lighttpd; /etc/rc.restart_webgui

http://forum.pfsense.org/index.php?topic=45573.0

http://forum.malekal.com/otlpe-live-t23453.html#p213090
http://forums.cnetfrance.fr/topic/1169757-please-wait-while-the-connect…

http://www.thinkwiki.org/wiki/How_to_use_cpufrequtils
https://wiki.archlinux.org/index.php/CPU_Frequency_Scaling

http://www.uchobby.com/index.php/2007/05/05/read-embedded-flash-chips/
http://www.gremwell.com/nand-reader-writer-gadget

Remember that OpenVPN is doing bidirectional authentication: The server
authenticates the client and client authenticates the server.

Server Authenticates Client -- can be done with either a client
certificate or auth-user-pass or both.

Client Authenticates Server -- can currently only be done via a server
certificate signed by the root certificate (CA).

So you can use "auth-user-pass" and "client-cert-not-required" on the
client, but you still need a "ca" cert on the client to verify the
identity of the server.

James