Linux

Find Largest files/directories

du -Sh | sort -rh | head -5

To allow more simultaneous connections

/sbin/sysctl -w net.netfilter.nf_conntrack_max=262144

apt-get install conntrack

add nf_conntrack to /etc/modules

This increases power consumption

sudo apt-get install cpufrequtils

Get the number of cpus

grep -c processor /proc/cpuinfo

for i in `seq 0 31`; do cpufreq-set -c $i -r -g performance; done

where 31 is number of cpus - 1

cat /proc/[pid]/limits

sudo apt update

sudo apt ugrade