The crontab command comes with all Linux/Unix OS as a default program, it is designed to automate... The default system and service manager for most Linux distributions now is systemd. It is... Traceroute is a tool used to trace the echo requet and echo reply from to routers. This tool is... run the following command:   setenforce 0   sed -i 's/SELINUX=enforcing/SELINUX=disabled/g'... For a quick active or inactive instead:systemctl is-active firewalld.service Stop Firewalld for...