CentOS 7 방화벽 해제

## Step 1: 방화벽을 해제합니다.

[root@localhost ~]# systemctl mask firewalld

 

## Step 2: 방화벽을 정지합니다.

[root@localhost ~]# systemctl stop firewalld

 

## Step 3: iptables service 관련packages를 설치합니다.

[root@localhost ~]# yum -y install iptables-services

 

## Step 4: boot시 service를 시작합니다.

[root@localhost ~]# systemctl enable iptables

 

## 만약 ip6tables 서비스를 사용하지 않을 경우, skip 합니다.

[root@localhost ~]# systemctl enable ip6tables

 

## Step 5: iptables services를 시작합니다.

[root@localhost ~]# systemctl start iptables

 

## 만약 ip6tables 서비스를 사용하지 않을 경우, skip 합니다.

[root@localhost ~]# systemctl start ip6tables

 

## 전체 서비스를 disable할 경우 아래와 같이 진행합니다.

[root@localhost ~]# systemctl list-unit-files | grep fire

firewalld.service                           enabled

  

[root@localhost ~]# systemctl list-unit-files | grep iptables

iptables.service                            disabled

  

[root@localhost ~]# systemctl stop firewalld

[root@localhost ~]# systemctl stop iptables

[root@localhost ~]# systemctl stop ip6tables

[root@localhost ~]# systemctl disable firewalld

rm '/etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service'

rm '/etc/systemd/system/basic.target.wants/firewalld.service'

[root@localhost ~]# systemctl disable iptables

[root@localhost ~]# systemctl disable ip6tables

  

[root@localhost ~]# systemctl list-unit-files | grep fire

firewalld.service                           disabled

[root@localhost ~]# systemctl list-unit-files | grep iptables

iptables.service                            disabled