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25 lines
939 B
Plaintext
25 lines
939 B
Plaintext
# Adapted from http://tldp.org/HOWTO/TransparentProxy-6.html (6.2 Second method)
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# Note that the choice of firewall mark (3) and routing table (2) was fairly arbitrary.
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# If you are already using policy routing or firewall marking for some other purpose,
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# make sure you choose unique numbers here. Otherwise, don't worry about it.
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# On the router, run
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PROXY_IP=192.168.1.100
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TARGET_IP=192.168.1.110
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iptables -t mangle -A PREROUTING -j ACCEPT -p tcp -m multiport --dports 80,443 -s ! $TARGET_IP
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# Alternative to MITM the whole network:
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# iptables -t mangle -A PREROUTING -j ACCEPT -p tcp -m multiport --dports 80,443 -s $PROXY_IP
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iptables -t mangle -A PREROUTING -j MARK --set-mark 3 -p tcp -m multiport --dports 80,443
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ip rule add fwmark 3 table 2
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ip route add default via $PROXY_IP dev br0 table 2
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# On the proxy machine, run
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iptables -A PREROUTING -t nat -i eth0 -p tcp -m multiport --dports 80,443 -j REDIRECT --to-port 8080
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