2020-01-26 11:59:13 +01:00
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[Interface]
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2020-01-26 22:47:59 +01:00
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Address = 10.10.10.1/24, fd10:10:10::1/64
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2020-01-26 21:17:52 +01:00
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ListenPort = 51820
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2020-01-26 11:59:13 +01:00
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# Load keys
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PostUp = [ -e '/etc/wireguard/%i-privatekey' ] || (umask 077 && wg genkey > '/etc/wireguard/%i-privatekey')
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PostUp = [ -e '/etc/wireguard/%i-publickey' ] || (umask 022 && wg pubkey < '/etc/wireguard/%i-privatekey' > '/etc/wireguard/%i-publickey')
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PostUp = wg set '%i' private-key '/etc/wireguard/%i-privatekey'
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# Load peers
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2020-01-27 20:01:21 +01:00
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PostUp = [ -e '/etc/wireguard/%i-peers.conf' ] || (umask 022 && touch '/etc/wireguard/%i-peers.conf')
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PostUp = wg addconf '%i' '/etc/wireguard/%i-peers.conf'
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2020-01-26 11:59:13 +01:00
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# Enable IPv4/IPv6 forwarding
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2020-03-02 20:43:44 +01:00
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PostUp = grep -Fxq 1 /proc/sys/net/ipv4/ip_forward || printf 1 > /proc/sys/net/ipv4/ip_forward
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PostUp = grep -Fxq 1 /proc/sys/net/ipv6/conf/all/forwarding || printf 1 > /proc/sys/net/ipv6/conf/all/forwarding
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PostUp = grep -Fxq 1 /proc/sys/net/ipv6/conf/default/forwarding || printf 1 > /proc/sys/net/ipv6/conf/default/forwarding
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2020-01-27 20:01:21 +01:00
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# Store the internet-facing interface in a file for later use
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PostUp = ip route show default | awk '/^default/{print $5}' > '/etc/wireguard/%i-iface'
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# Allow access WireGuard via port 51820/UDP on the internet-facing interface
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PostUp = iptables -A INPUT -i "$(cat '/etc/wireguard/%i-iface')" -p udp --dport 51820 -j ACCEPT
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PostUp = ip6tables -A INPUT -i "$(cat '/etc/wireguard/%i-iface')" -p udp --dport 51820 -j ACCEPT
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PostDown = iptables -D INPUT -i "$(cat '/etc/wireguard/%i-iface')" -p udp --dport 51820 -j ACCEPT
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PostDown = ip6tables -D INPUT -i "$(cat '/etc/wireguard/%i-iface')" -p udp --dport 51820 -j ACCEPT
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# Allow access WireGuard via port 53/UDP on the internet-facing interface (to circumvent some firewalls)
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PostUp = iptables -t nat -A PREROUTING -i "$(cat '/etc/wireguard/%i-iface')" -p udp --dport 53 -j REDIRECT --to-port 51820
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PostUp = ip6tables -t nat -A PREROUTING -i "$(cat '/etc/wireguard/%i-iface')" -p udp --dport 53 -j REDIRECT --to-port 51820
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PostDown = iptables -t nat -D PREROUTING -i "$(cat '/etc/wireguard/%i-iface')" -p udp --dport 53 -j REDIRECT --to-port 51820
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PostDown = ip6tables -t nat -D PREROUTING -i "$(cat '/etc/wireguard/%i-iface')" -p udp --dport 53 -j REDIRECT --to-port 51820
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2020-01-26 11:59:13 +01:00
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# Allow packet forwarding on the WireGuard interface
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PostUp = iptables -A FORWARD -i '%i' -j ACCEPT && iptables -t nat -A POSTROUTING -o "$(cat '/etc/wireguard/%i-iface')" -j MASQUERADE
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PostUp = ip6tables -A FORWARD -i '%i' -j ACCEPT && ip6tables -t nat -A POSTROUTING -o "$(cat '/etc/wireguard/%i-iface')" -j MASQUERADE
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PostDown = iptables -D FORWARD -i '%i' -j ACCEPT && iptables -t nat -D POSTROUTING -o "$(cat '/etc/wireguard/%i-iface')" -j MASQUERADE
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PostDown = ip6tables -D FORWARD -i '%i' -j ACCEPT && ip6tables -t nat -D POSTROUTING -o "$(cat '/etc/wireguard/%i-iface')" -j MASQUERADE
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# Allow access to the local DNS server on the WireGuard interface
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PostUp = iptables -A INPUT -i '%i' -p tcp --dport 53 -j ACCEPT && iptables -A INPUT -i '%i' -p udp --dport 53 -j ACCEPT
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PostUp = ip6tables -A INPUT -i '%i' -p tcp --dport 53 -j ACCEPT && ip6tables -A INPUT -i '%i' -p udp --dport 53 -j ACCEPT
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PostDown = iptables -D INPUT -i '%i' -p tcp --dport 53 -j ACCEPT && iptables -D INPUT -i '%i' -p udp --dport 53 -j ACCEPT
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PostDown = ip6tables -D INPUT -i '%i' -p tcp --dport 53 -j ACCEPT && ip6tables -D INPUT -i '%i' -p udp --dport 53 -j ACCEPT
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