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*mangle |
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:PREROUTING ACCEPT [0:0] |
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:INPUT ACCEPT [0:0] |
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:FORWARD ACCEPT [0:0] |
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:OUTPUT ACCEPT [0:0] |
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:POSTROUTING ACCEPT [0:0] |
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COMMIT |
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*nat |
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:PREROUTING ACCEPT [0:0] |
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:INPUT ACCEPT [0:0] |
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:OUTPUT ACCEPT [0:0] |
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:POSTROUTING ACCEPT [0:0] |
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-A PREROUTING -i eth0 -d {PUBLIC_IP} -p tcp -m tcp --dport 80 -j DNAT --to-destination 10.128.0.3:80 |
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-A PREROUTING -i eth0 -d {PUBLIC_IP} -p tcp -m tcp --dport 443 -j DNAT --to-destination 10.128.0.3:443 |
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-A POSTROUTING -d 10.128.0.3 -o eth1 -p tcp -m tcp --dport 80 -j SNAT --to-source 10.128.0.2 |
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-A POSTROUTING -d 10.128.0.3 -o eth1 -p tcp -m tcp --dport 443 -j SNAT --to-source 10.128.0.2 |
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-A POSTROUTING -s 10.128.0.2 -o eth0 -j SNAT --to-source {PUBLIC_IP} |
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-A POSTROUTING -s 10.128.0.0/20 ! -d 10.128.0.0/20 -j MASQUERADE |
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COMMIT |
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*filter |
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:INPUT DROP [0:0] |
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:FORWARD DROP [0:0] |
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:OUTPUT ACCEPT [0:0] |
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:FILTERS - [0:0] |
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-A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT |
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-A INPUT -i lo -j ACCEPT |
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-A INPUT -m conntrack --ctstate INVALID -j DROP |
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-A INPUT -p icmp -m icmp --icmp-type 8 -m limit --limit 5/sec -j ACCEPT |
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-A INPUT -i eth1 -m conntrack --ctstate NEW -s 10.128.0.0/20 -j ACCEPT |
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-A INPUT -j FILTERS |
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-A INPUT -j DROP |
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-A FORWARD -o eth1 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT |
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-A FORWARD -i eth1 -o eth1 -m conntrack --ctstate NEW -s 10.128.0.0/20 -j ACCEPT |
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-A FORWARD -o eth0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT |
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-A FORWARD -i eth1 -o eth0 -m conntrack --ctstate NEW -s 10.128.0.0/20 -j ACCEPT |
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-A FORWARD -i eth0 -o eth1 -j FILTERS |
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-A OUTPUT -o lo -j ACCEPT |
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-A OUTPUT -o eth0 -j ACCEPT |
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-A OUTPUT -o eth1 -j ACCEPT |
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-A FILTERS -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT |
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-A FILTERS -p tcp -m conntrack --ctstate NEW -m tcp --syn --dport 22 -j ACCEPT |
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-A FILTERS -p tcp -m conntrack --ctstate NEW -m tcp --syn --dport 80 -j ACCEPT |
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-A FILTERS -p tcp -m conntrack --ctstate NEW -m tcp --syn --dport 443 -j ACCEPT |
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-A FILTERS -p udp -m conntrack --ctstate NEW -m udp --dport 51820 -j ACCEPT |
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-A FILTERS -p udp -m conntrack --ctstate NEW -m udp --dport 51821 -j ACCEPT |
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-A FILTERS -p tcp -m conntrack --ctstate NEW,RELATED,ESTABLISHED -m tcp --syn --dport 1719 -j REJECT |
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-A FILTERS -p tcp -m conntrack --ctstate NEW,RELATED,ESTABLISHED -m tcp --syn --dport 1720 -j REJECT |
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-A FILTERS -p tcp -m conntrack --ctstate NEW,RELATED,ESTABLISHED -m tcp --syn --dport 1723 -j REJECT |
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-A FILTERS -p tcp -m conntrack --ctstate NEW,RELATED,ESTABLISHED -m tcp --syn --dport 5060 -j REJECT |
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-A FILTERS -p tcp -m conntrack --ctstate NEW,RELATED,ESTABLISHED -m tcp --syn --dport 5061 -j REJECT |
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-A FILTERS -p tcp -m conntrack --ctstate NEW,RELATED,ESTABLISHED -m tcp --syn --dport 6566 -j REJECT |
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-A FILTERS -p tcp -m conntrack --ctstate NEW,RELATED,ESTABLISHED -m tcp --syn --dport 8080 -j REJECT |
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-A FILTERS -p tcp -m conntrack --ctstate NEW,RELATED,ESTABLISHED -m tcp --syn --dport 8443 -j REJECT |
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-A FILTERS -p tcp -m conntrack --ctstate NEW,RELATED,ESTABLISHED -m tcp --syn --dport 8880 -j REJECT |
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-A FILTERS -p tcp -m conntrack --ctstate NEW,RELATED,ESTABLISHED -m tcp --syn --dport 10080 -j REJECT |
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-A FILTERS -m conntrack --ctstate INVALID -j DROP |
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-A FILTERS -j REJECT |
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COMMIT |
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