Tips and tricks - Linux

Random things we have collected.

Gentoo fame gave us these:

alias ak-emerge="ACCEPT_KEYWORDS=~x86 emerge"
alias du-max='du -h --max-depth=1'
function ipban { /sbin/iptables -t mangle -p tcp -A PREROUTING -s ${1} -j DROP; }
function ipunban { /sbin/iptables -t mangle -p tcp -D PREROUTING -s ${1} -j DROP; }
function hup { /bin/kill -HUP `/bin/pidof ${1}`; }
function topconn { netstat -tn | grep :80 | awk '{print $5}' | sed -e 's/:.*//' | sort | uniq -c | sort -r | head -n 25; }