25 lines
1.1 KiB
YAML
25 lines
1.1 KiB
YAML
---
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- name: Apply rate limits
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iptables_raw:
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name: sshd_limit
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rules: |
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-N SSH_LIMIT
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{% if trusted_ip is defined and trusted_ip | length > 0 %}
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-A SSH_LIMIT -s {{ trusted_ip | join(',') }} -j RETURN
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{% endif %}
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-A SSH_LIMIT -m recent --name ssh_limit --set
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-A SSH_LIMIT -m recent --name ssh_limit --rcheck --seconds 60 --hitcount {{ sshd_max_conn_per_minute }} -j LOG --log-prefix "Firewall (ssh limit): "
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-A SSH_LIMIT -m recent --name ssh_limit --rcheck --seconds 60 --hitcount {{ sshd_max_conn_per_minute }} -j REJECT
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-A INPUT -p tcp -m state --state NEW -m multiport --dports {{ sshd_ports | join(',') }} -j SSH_LIMIT
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state: "{{ (sshd_max_conn_per_minute > 0) | ternary('present','absent') }}"
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weight: 10
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tags: ssh,firewall
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- name: Handle ssh ports
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iptables_raw:
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name: sshd_ports
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state: "{{ (sshd_src_ip is defined and sshd_src_ip | length > 0) | ternary('present','absent') }}"
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rules: "-A INPUT -m state --state new -p tcp -m multiport --dports {{ sshd_ports | join(',') }} -s {{ sshd_src_ip | flatten | join(',') }} -j ACCEPT"
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tags: ssh,firewall
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