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---
- name: Allow Related And Established
ansible.builtin.iptables:
chain: "{{ item }}"
ctstate: ESTABLISHED,RELATED
jump: ACCEPT
ip_version: "{{ ip_version }}"
loop: ['INPUT', 'OUTPUT']
- name: Deny Invalid
ansible.builtin.iptables:
chain: "{{ item }}"
ctstate: INVALID
jump: DROP
ip_version: "{{ ip_version }}"
loop: ['INPUT', 'OUTPUT', 'FORWARD']
- name: Allow Loopback In
ansible.builtin.iptables:
chain: INPUT
in_interface: lo
jump: ACCEPT
ip_version: "{{ ip_version }}"
- name: Allow Loopback Out
ansible.builtin.iptables:
chain: OUTPUT
out_interface: lo
jump: ACCEPT
ip_version: "{{ ip_version }}"
- name: Allow Ping In
ansible.builtin.iptables:
chain: INPUT
protocol: "{{ item }}"
jump: ACCEPT
limit: 1/second
ip_version: "{{ ip_version }}"
loop: ['icmp', 'icmpv6']
- name: Allow Ping Out
ansible.builtin.iptables:
chain: OUTPUT
protocol: "{{ item }}"
jump: ACCEPT
ip_version: "{{ ip_version }}"
loop: ['icmp', 'icmpv6']
- name: Allow Dns Out
ansible.builtin.iptables:
chain: OUTPUT
protocol: "{{ item }}"
destination_port: 53
jump: ACCEPT
ip_version: "{{ ip_version }}"
loop: ['tcp', 'udp']
- name: Allow Ntp Out
ansible.builtin.iptables:
chain: OUTPUT
protocol: 'udp'
destination_port: 123
jump: ACCEPT
ip_version: "{{ ip_version }}"
- name: Allow Ssh In
ansible.builtin.iptables:
chain: INPUT
protocol: 'tcp'