SETTING TPROXY MODE BRIDGE

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SETTING TPROXY MODE BRIDGE

TOPOLOGI

 

- OS proxy ubuntu server
- 2 lan card
- Asumsi squid3.x sudah terinstall dan berjalan dengan baik

Ether mikrotik 192.168.20.1/24 

br0 192.168.20.2 

client 192.168.20.3-192.168.20.254

1. Install Paket pendukung

apt-get install ebtables

apt-get install bridge-utils

2. Set file /etc/network/interfaces, hapus isinya dan hanya bagian ini yang jangan
================================ 

etc/network/interfaces 

auto lo

iface lo inet loopback

3. Set file /etc/rc.local

ifconfig eth0 0.0.0.0 promisc up 

ifconfig eth1 0.0.0.0 promisc up 

brctl addbr br0 

brctl addif br0 eth0 

brctl addif br0 eth1 

ifconfig br0 192.168.20.2 netmask 255.255.255.0 up 

route add default gw 192.168.20.1 dev br0 

modprobe xt_TPROXY 

modprobe xt_socket 

modprobe nf_tproxy_core 

modprobe xt_mark 

modprobe nf_nat

modprobe nf_conntrack_ipv4 

modprobe nf_conntrack
modprobe nf_defrag_ipv4 

modprobe ipt_REDIRECT 

modprobe iptable_nat 

iptables -F 

iptables -t nat -F 

iptables -t mangle -F 

iptables -X 

iptables -t nat -X 

ip rule add fwmark 1 lookup 100

ip route add local 0.0.0.0/0 dev lo table 100 

echo 0 >/proc/sys/net/ipv4/conf/lo/rp_filter 

echo 1 >/proc/sys/net/ipv4/ip_forward 

iptables -t mangle -N DIVERT 

iptables -t mangle -A DIVERT -j MARK --set-mark 1 

iptables -t mangle -A DIVERT -j ACCEPT 

iptables -t mangle -A PREROUTING -p tcp -m socket -j DIVERT 

iptables -t mangle -A PREROUTING -p tcp --dport 80 -j TPROXY --tproxy-mark 0x1/0x1 --on-port 3129 

iptables -t mangle -A PREROUTING -p tcp --dport 443 -j TPROXY --tproxy-mark 0x1/0x1 --on-port 3127 

ebtables -F
ebtables -t broute -A BROUTING -p ipv4 --ip-proto tcp --ip-dport 80 -j redirect --redirect target ACCEPT
ebtables -t broute -A BROUTING -p ipv4 --ip-proto tcp --ip-sport 80 -j redirect --redirect-target ACCEPT

#================================================================= 

exit 0

4. Reboot pc proxy..beres

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