bogdan/zira-etc
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Initial commit.

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Bogdan Stoica
2021-05-24 22:18:33 +03:00
commit e2954d55f4
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csf/disabled/csfpre.sh Normal file
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# accept pptp traffic
iptables -A INPUT -i eth0 -p gre -j ACCEPT
iptables -A INPUT -i eth0 -p 50 -j ACCEPT
iptables -A INPUT -i eth0 -p 51 -j ACCEPT
iptables -A INPUT -p udp --dport 1701 -m policy --dir in --pol ipsec -j ACCEPT
iptables -A INPUT -p udp --dport 1701 -j DROP
#iptables -I FORWARD 1 -m conntrack --ctstate INVALID -j DROP
iptables -I FORWARD 2 -i eth+ -o ppp+ -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
iptables -I FORWARD 3 -i ppp+ -o eth+ -j ACCEPT
iptables -I FORWARD 4 -i ppp+ -o ppp+ -s 192.168.42.0/24 -d 192.168.42.0/24 -j ACCEPT
iptables -I FORWARD 5 -i eth+ -d 192.168.43.0/24 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
iptables -I FORWARD 6 -s 192.168.43.0/24 -o eth+ -j ACCEPT
# Uncomment to DROP traffic between VPN clients themselves
# iptables -I FORWARD 2 -i ppp+ -o ppp+ -s 192.168.42.0/24 -d 192.168.42.0/24 -j DROP
# iptables -I FORWARD 3 -s 192.168.43.0/24 -d 192.168.43.0/24 -j DROP
iptables -t nat -I POSTROUTING -s 192.168.43.0/24 -o eth+ -m policy --dir out --pol none -j SNAT --to-source 192.168.1.2
iptables -t nat -I POSTROUTING -s 192.168.42.0/24 -o eth+ -j SNAT --to-source 192.168.1.2
###
iptables -A OUTPUT -p gre -j ACCEPT
iptables -A FORWARD -i ppp+ -o eth0 -j ACCEPT
iptables -A FORWARD -i eth0 -o ppp+ -j ACCEPT
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE