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Drastically simplify firewall config

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Alex 2022-01-19 13:30:18 +01:00
parent 4bc67c3906
commit b5ec581bc8
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1 changed files with 6 additions and 34 deletions
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configuration.nix
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@ -309,46 +309,18 @@ in
# Allow everything from router (usefull for UPnP/IGD)
iptables -A INPUT -s 192.168.1.254 -j ACCEPT
# Allow Docker containers to access a few things
iptables -N CONTAINERS
iptables -A INPUT -s 172.17.0.0/16 -j CONTAINERS
# Allow docker containers to access all ports
iptables -A INPUT -s 172.17.0.0/16 -j ACCEPT
# Yugabyte YSQL
iptables -A CONTAINERS -p tcp --dport 5433 -j ACCEPT
# Specific rules for VPN nodes
iptables -N VPN
iptables -A INPUT -s 10.42.0.0/16 -j VPN
# Allow server nodes to communicate between themselves on all ports
iptables -A VPN -s 10.42.0.2 -j ACCEPT
iptables -A VPN -s 10.42.0.21 -j ACCEPT
iptables -A VPN -s 10.42.0.22 -j ACCEPT
iptables -A VPN -s 10.42.0.23 -j ACCEPT
# Allow all VPN users to access Nomad API
iptables -A VPN -p tcp --dport 4646 -j ACCEPT
# Same for Consul API
iptables -A VPN -p tcp --dport 8500 -j ACCEPT
# Same for YugabyteDB YSQL and Admin ports
iptables -A VPN -p tcp --dport 5433 -j ACCEPT
iptables -A VPN -p tcp --dport 7000 -j ACCEPT
# Same for Netdata monitoring
iptables -A VPN -p tcp --dport 19999 -j ACCEPT
# Allow other nodes on VPN to access all ports
iptables -A INPUT -s 10.42.0.0/16 -j ACCEPT
'';
# When stopping firewall, delete all rules that were configured manually above
extraStopCommands = ''
iptables -D INPUT -s 192.168.1.254 -j ACCEPT
iptables -D INPUT -s 10.42.0.0/16 -j VPN
iptables -F VPN
iptables -X VPN
iptables -D INPUT -s 172.17.0.0/16 -j CONTAINERS
iptables -F CONTAINERS
iptables -X CONTAINERS
iptables -D INPUT -s 172.17.0.0/16 -j ACCEPT
iptables -D INPUT -s 10.42.0.0/16 -j ACCEPT
'';
};