// Aula 2 - Criando um serviço customizado de Firewall

# cp /usr/lib/firewalld/services/ssh.xml /etc/firewalld/services

# vim /etc/firewalld/services/ssh.xml 

# mv /etc/firewalld/services/ssh.xml /etc/firewalld/services/ssh-custom.xml

# firewall-cmd --get-services

# firewall-cmd --reload

# firewall-cmd --get-services

# firewall-cmd --add-service ssh-custom --permanent

# firewall-cmd --reload

# firewall-cmd --list-services