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create TCP proxy unsing only iptables
1 | dpavlin | 289 | #!/bin/sh |
2 | |||
3 | # http://www.debian-administration.org/articles/595 | ||
4 | |||
5 | test -z "$1" -o -z "$2" -o -z "$3" -o -z "$4" && echo "$0 LOCAL_IP LOCAL_PORT REMOTE_IP REMOTE_PORT" && exit 1 | ||
6 | |||
7 | IPTABLES=/sbin/iptables | ||
8 | |||
9 | echo 'echo 1 > /proc/sys/net/ipv4/ip_forward' | ||
10 | |||
11 | echo $IPTABLES -t nat -A PREROUTING --dst $1 -p tcp --dport $2 -j DNAT --to-destination $3:$4 | ||
12 | echo $IPTABLES -t nat -A POSTROUTING --dst $3 -p tcp --dport $4 -j SNAT --to-source $1 | ||
13 | echo $IPTABLES -t nat -A OUTPUT --dst $1 -p tcp --dport $2 -j DNAT --to-destination $3:$4 |
Name | Value |
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svn:executable | * |
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