Segurança Informática (Redes e Internet)

Podcast sobre segurança (em inglês)
Do melhor que há!!!

Security Now!
http://leoville.tv/podcasts/sn.xml

Site para gerar passwords
https://www.grc.com/passwords.htm

Encriptar ficheiros (simétrica)

http://www.cyberciti.biz/tips/linux-how-to-encrypt-and-decrypt-files-with-a-password.html

Configurar o Asus Ubuntu eee PC 8.04

• Desactivar nos pacotes o tracker (evitar ir à pen).
  
• Abrir a configuração GDM de forma a abrir o utilizador "asus" (escolhido por mim) automáticamente.
• Tentar criar auto login sem o gdm

http://news.softpedia.com/news/Optimize-Ubuntu-8-04-for-Speed-86405.shtml
e + e + profile + b

• No meu caso - sudo gedit /etc/modprobe.d/blacklist - adicionar - blacklist intel_rng - para não aparecer o erro no arranque
• http://ubuntu-tutorials.com/2008/06/23/install-adobe-acrobat-reader-812-on-ubuntu-804/
• http://ubuntuforums.org/showthread.php?t=604437 ?!?!?!?!?
  
• http://wiki.eeeuser.com/howto:fixgoogleearthspeed
• http://www.ubuntu-eee.com/index.php5?title=Get_the_most_of_the_battery
• http://www.ubuntu-eee.com/index.php5?title=How_to:_reduce_swappiness
• http://www.ubuntu-eee.com/index.php5?title=Fix:_The_shutdown_on_hardy
• Editar o applet do som (pequena coluna de som) e alterar para "alsa"
• No grub retirar o spash e quiet para ver o que o computador está a fazer ;-)
  
• No arranque demora muito tempo por causa de um "clock" ver

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/236273

• Instalar o Clearlooks Compact (theme para widgets/controlos)
• Por causa do som: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/192382 (reboot)
  
• Por causa ca câmara carregar o modulo /etc/modules acrescentar uvcvideo (reboot)
  

Activar LAPTOP MODE - Ubuntu on PEN DRIVE

http://aldeby.org/blog/index.php/howto-ubuntu-linux-on-hp-pavilion-dv2000-dv6000-dv9000-series-laptops

kdenllive

Apesar de ser mais adepto do Gnome, também uso aplicações do KDE como o K3B, o Scribus e agora o kdenLive (para o Gnome há o Pitivi mas ainda tem muito que evoluir).

No Ubuntu Hardy tive um pequeno problema com o som (no Sound) e tive que instalar o seguinte pacote conforme indicado aqui.

libsdl1.2debian-all

Alterar nome da Pen/Discos Externos/etc.

https://help.ubuntu.com/community/RenameUSBDrive

Interessante - Proxy Bypass websites

If your filter system filters based on words in the urls, and the kids are just using it to go to bebo or myspace, I've found that a lot of the proxies are based on the same scripts and the url's they produce have the same code after the proxy domain so you can just filter this based on the sites you want to filter.

That probably made no sense so an example...

http://youbypass.com/?q=aHR0cDovL3d3...bQ%3D%3D&hl=e8

http://dodu.info/?q=aHR0cDovL3d3dy5i...bQ%3D%3D&hl=e8

both take you to bebo.com

So instead of filtering the domain, filter the "aHR0cDovL3d3dy5iZWJvLmNvbQ" part and you'll filter all the proxies that use this particular php.

No good if kids are accessing all sorts of sites, but we had a problem purely with bebo (they seem to have shunned myspace here). They didn't seem to understand they could go anywhere on the net through the proxies!