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iamtakingiteasy/etc-iproute2-rt_tables

Created November 3, 2018 01:43
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etc-iproute2-rt_tables
255 local
254 main
253 default
0 unspec
250 myvpn
Raw
myvpn.sh
#!/bin/bash
dev=$1
ip=$4
gw=${ip%.*}.1
ports=(
80
443
)
nets=(
128.199.0.0/16
13.125.0.0/16
13.230.0.0/15
13.56.0.0/14
159.122.128.0/18
159.203.0.0/16
159.65.0.0/16
159.89.0.0/16
165.227.0.0/16
167.99.0.0/16
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178.63.0.0/16
18.130.0.0/16
18.144.0.0/16
18.204.0.0/14
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188.166.0.0/17
195.154.0.0/17
206.189.0.0/16
34.240.0.0/13
34.248.0.0/13
35.176.0.0/15
35.178.0.0/15
35.180.0.0/16
46.101.128.0/17
51.136.0.0/15
52.32.0.0/16
52.56.0.0/16
52.57.0.0/16
54.212.0.0/15
54.228.0.0/15
64.137.0.0/17
68.171.224.0/19
74.82.64.0/19
104.236.229.38/32
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)
localnets=(
10.0.0.0/8
172.16.0.0/12
192.168.0.0/16
)
directdomains=(
)
selectors=()
for v in ${ports[@]}; do
selectors+=("dport $v table myvpn")
done
for v in ${nets[@]}; do
selectors+=("to $v table myvpn")
done
for v in ${localnets[@]}; do
selectors+=("to $v table main")
done
for v in ${directdomains[@]}; do
selectors+=("to $(dig "$v" +short) table main")
done
if ip link show $dev; then
iptables -A POSTROUTING -t nat -o $dev -j SNAT --to-source $ip
ip route add default via $gw dev $dev table myvpn
for v in "${selectors[@]}"; do
ip rule add $v
done
sysctl net.ipv4.ip_forward=1
sysctl net.ipv4.conf.all.rp_filter=0
sysctl net.ipv4.conf.$dev.rp_filter=0
else
for v in "${selectors[@]}"; do
ip rule del $v
done
ip route del default via $gw dev $dev table myvpn
iptables -D POSTROUTING -t nat -o $dev -j SNAT --to-source $ip
fi
ip route flush cache
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