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dport and port differentiation

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bogale 2026-09-26 23:56:49 +09:00
commit 27431ddc89
3 changed files with 24 additions and 12 deletions
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2
data/dest.env
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@ -1,2 +1,2 @@
DEST=10.0.0.2
DEST6=fc00::2
DEST4=10.0.0.2

33
data/install.sh
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@ -2,27 +2,40 @@
set -euo pipefail
. data/dest.env
cat <<EOF >> /etc/sysctl.conf
net.ipv6.conf.all.forwarding = 1
net.ipv4.ip_forward = 1
net.ipv4.conf.all.forwarding = 1
net.ipv6.conf.all.forwarding = 1
EOF
for v in "" 6; do
for v in 6 ""; do
ip${v}tables -P FORWARD DROP
ip${v}tables -A FORWARD -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
ip${v}tables -A FORWARD -i awg0 -j ACCEPT
ip${v}tables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
done
for route in tcp:25 tcp:80 tcp:443 udp:443; do
PROTO=${route%:*}
PORT=${route#*:}
iptables -t nat -A PREROUTING -m addrtype --dst-type LOCAL -p $PROTO --dport $PORT -j DNAT --to-destination $DEST:$PORT
iptables -A FORWARD -d $DEST -p $PROTO --dport $PORT -j ACCEPT
ip6tables -t nat -A PREROUTING -m addrtype --dst-type LOCAL -p $PROTO --dport $PORT -j DNAT --to-destination [$DEST6]:$PORT
ip6tables -A FORWARD -d $DEST6 -p $PROTO --dport $PORT -j ACCEPT
for sock in tcp:25 80 443 2235=22 udp:443; do
if [[ "$sock" == *:* ]]; then
PORT=${sock#*:}
PROTO=${sock%:*}
else
PORT=$sock
fi
if [[ "$PORT" == *=* ]]; then
DPORT=${PORT#*=}
PORT=${PORT%=*}
else
DPORT=$PORT
fi
ip6tables -t nat -A PREROUTING -m addrtype --dst-type LOCAL \
-p $PROTO --dport $PORT -j DNAT --to-destination [$DEST6]:$DPORT
ip6tables -A FORWARD -d $DEST6 -p $PROTO --dport $DPORT -j ACCEPT
iptables -t nat -A PREROUTING -m addrtype --dst-type LOCAL \
-p $PROTO --dport $PORT -j DNAT --to-destination $DEST4:$DPORT
iptables -A FORWARD -d $DEST4 -p $PROTO --dport $DPORT -j ACCEPT
done
export DEBIAN_FRONTEND=noninteractive
add-apt-repository -y ppa:amnezia/ppa
apt-get install -y software-properties-common python3-launchpadlib gnupg2 linux-headers-$(uname -r) amneziawg amneziawg-tools iptables-persistent
apt-get install -y software-properties-common python3-launchpadlib gnupg2 \
linux-headers-$(uname -r) amneziawg amneziawg-tools iptables-persistent
mv data/awg0.conf /etc/amnezia/amneziawg
systemctl enable awg-quick@awg0
apt-get autoremove --purge -y