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Diffstat (limited to 'roles/firewall/templates/rules.v4')
-rw-r--r-- | roles/firewall/templates/rules.v4 | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/roles/firewall/templates/rules.v4 b/roles/firewall/templates/rules.v4 deleted file mode 100644 index 1bfeb94..0000000 --- a/roles/firewall/templates/rules.v4 +++ /dev/null @@ -1,50 +0,0 @@ -{{ ansible_managed | comment }} - -*filter - -# By default, drop incoming packets: -:INPUT DROP [0:0] -:FORWARD DROP [0:0] -# By default, accept outgoing packets: -:OUTPUT ACCEPT [0:0] - -# Accept packets for localhost: --A INPUT -i lo -j ACCEPT - -# Accept any packet for an open connection: --A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT --A FORWARD -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT - -# The SSH port is always open: -{% set ssh_port = hostvars[inventory_hostname].ansible_port %} - -# Open TCP ports: -{% set tcp_ports = [ssh_port] + firewall_ports_tcp + firewall_ports4_tcp %} -{% set tcp_ports = tcp_ports | unique %} - -{% for port in tcp_ports %} -{% set num = port.port if port.port is defined else port %} -{% set src = '-s ' + port.source if port.source is defined else '' %} --A INPUT -p tcp {{ src }} --dport {{ num }} -m conntrack --ctstate NEW -j ACCEPT -{% endfor %} - -# Open UDP ports: -{% set udp_ports = firewall_ports_udp + firewall_ports4_udp %} -{% set udp_ports = udp_ports | unique %} - -{% for port in udp_ports %} -{% set num = port.port if port.port is defined else port %} -{% set src = '-s ' + port.source if port.source is defined else '' %} --A INPUT -p udp {{ src }} --dport {{ num }} -j ACCEPT -{% endfor %} - -# Any additional IPv4 rules: -{{ firewall_rules4 | join('\n') }} - -# ICMP; allow only pings and rate-limit them: --A INPUT -p icmp --icmp-type echo-request -m hashlimit --hashlimit-upto 5/s --hashlimit-mode srcip --hashlimit-srcmask 32 --hashlimit-name icmp-echo-drop -j ACCEPT - -# Log denies (this must be at the bottom of the file): --A INPUT -m limit --limit 3/min -j LOG --log-prefix "iptables denied: " --log-level 4 - -COMMIT |