Allowing Incoming Traffic on Specific Ports
sudo iptables -A INPUT -p tcp --dport ssh -j ACCEPT
Monthly Archives: August 2013
Recursively Search All Files For A String
grep -r "string" /etc
grep -ri "string" /etc
grep -ri -l "string" /etc
find /etc -type f -exec grep -l "string" {} +
Using /dev/urandom to generate passwords
cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 10| head -n 4
Source: http://blog.colovirt.com/2009/01/07/linux-generating-strong-passwords-using-randomurandom/