// Aula 3 - Criando regras de systemd

# cd /lib/systemd/system

# vim firewall.service

============================================================

[Unit]
Description= Regras de IPTables vindos do arquivo Firewall.sh
After=network.target

[Service]
Type=oneshot
ExecStart=/usr/local/sbin/firewall.sh start
ExecStop=/usr/local/sbin/firewall.sh stop
KillMode=process
RemainAfterExit=true

[Install]
WantedBy=multi-user.target

=============================================================

# systemctl status firewall.service

# systemctl enable firewall.service

# ls -l /etc/systemd/system/multi-user.target.wants/

# systemctl stop firewall.service

# systemctl start firewall.service

# systemctl status firewall.service