Securely sandboxes processes to containers using built-in Linux capabilities. More information: https://manned.org/firejail.
sudo firecfg
firejail firefox
firejail --net=eth0 --ip=192.168.1.244 /etc/init.d/apache2 start
firejail --list
firejail --netstats
firejail --shutdown=7777
firejail --seccomp --private --private-dev --private-tmp --protocol=inet firefox --new-instance --no-remote --safe-mode --private-window
/etc/hosts
file):firejail --hosts-file=~/myhosts curl http://mysite.arpa