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Configure iptables for IPv6, closes #97 #96

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Configure iptables for IPv6, closes #97 #96

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15 changes: 15 additions & 0 deletions includes.container/etc/iptables/rules.v6
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Original file line number Diff line number Diff line change
@@ -0,0 +1,15 @@
*filter
:INPUT DROP [0:0]
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [0:0]

# Allow loopback
-A INPUT -i lo -j ACCEPT

# Allow SSH (Port 22)
# -A INPUT -p tcp --dport 22 -j ACCEPT

# Allow enstabilished and related connections
-A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT

COMMIT
15 changes: 15 additions & 0 deletions includes.container/usr/systemd/system/ip6tables.service
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Original file line number Diff line number Diff line change
@@ -0,0 +1,15 @@
[Unit]
Description=ip6tables firewall rules
DefaultDependencies=no
Before=network-pre.target
Wants=network-pre.target

[Service]
Type=oneshot
ExecStart=/sbin/ip6tables-restore /etc/iptables/rules.v6
ExecReload=/sbin/ip6tables-restore /etc/iptables/rules.v6
ExecStop=/sbin/ip6tables-save > /etc/iptables/rules.v6
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target
4 changes: 4 additions & 0 deletions modules/91-iptables.yml
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Expand Up @@ -8,3 +8,7 @@ modules:
type: shell
commands:
- ln -s /usr/lib/systemd/system/iptables.service /etc/systemd/system/multi-user.target.wants/iptables.service
- name: enable-ip6tables-systemd-unit
type: shell
commands:
- ln -s /usr/lib/systemd/system/ip6tables.service /etc/systemd/system/multi-user.target.wants/ip6tables.service
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