Linux: cups cliente 403 forbidden

# cupsctl --remote-admin

Slackware: KickStarter - pppd frontend

# usermod -a -G dialout user

# chown root.dialout -R /etc/ppp

# chmod g+w /etc/ppp/chap-secrets pap-secrets

# chmod u+s /usr/sbin/pppd

Shell: Bash Shell Generate Random Numbers

http://www.cyberciti.biz/faq/bash-shell-script-generating-random-numbers/