Substituindo o FirewallD pelo Iptables no CentOS 7

Vou deixar uma dica de substituir o FirewallD pelo Iptables no CentOS 7. Então vamos ver como é simples mudar isso!

1. Instalar o repositório EPEL:

# yum install epel-release

2. Instalar o serviço Iptables:

# yum install iptables-services

3. Parar o serviço do FirewallD:

# systemctl stop firewalld

4. Desabilitar o serviço no boot:

# systemctl disable firewalld

5. Iniciar o serviço Iptables:

# systemctl start iptables

6. Habilitar o serviço no boot:

# systemctl enable iptables

Agora você já pode editar as configurações no arquivo /etc/sysconfig/iptables.

Lembre-se que sempre que adicionar uma regra, usar o "reload" no serviço para ativar a configuração.

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