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*mangle
:PREROUTING ACCEPT [0:0]
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
-A POSTROUTING -o virbr1 -p udp -m udp --dport 68 -j CHECKSUM --checksum-fill
COMMIT
*nat
:PREROUTING ACCEPT [0:0]
:INPUT ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
-A PREROUTING -i eth1 -p tcp --dport 2222 -j DNAT --to 192.168.100.10:22
-A PREROUTING -i eth1 -p tcp --dport 80 -j DNAT --to 192.168.100.10:80
-A PREROUTING -i eth1 -p tcp --dport 443 -j DNAT --to 192.168.100.10:443
# KVM Virtual Subnets
-A POSTROUTING -s 192.168.100.0/24 -d 224.0.0.0/24 -j RETURN
-A POSTROUTING -s 192.168.100.0/24 -d 255.255.255.255/32 -j RETURN
-A POSTROUTING -s 192.168.100.0/24 ! -d 192.168.100.0/24 -p tcp -j MASQUERADE --to-ports 1024-65535
-A POSTROUTING -s 192.168.100.0/24 ! -d 192.168.100.0/24 -p udp -j MASQUERADE --to-ports 1024-65535
-A POSTROUTING -s 192.168.100.0/24 ! -d 192.168.100.0/24 -j MASQUERADE
-A POSTROUTING -s 192.168.122.0/24 -d 224.0.0.0/24 -j RETURN
-A POSTROUTING -s 192.168.122.0/24 -d 255.255.255.255/32 -j RETURN
-A POSTROUTING -s 192.168.122.0/24 ! -d 192.168.122.0/24 -p tcp -j MASQUERADE --to-ports 1024-65535
-A POSTROUTING -s 192.168.122.0/24 ! -d 192.168.122.0/24 -p udp -j MASQUERADE --to-ports 1024-65535
-A POSTROUTING -s 192.168.122.0/24 ! -d 192.168.122.0/24 -j MASQUERADE
COMMIT
*filter
:INPUT DROP [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p udp --sport 53 -m state --state ESTABLISHED -j ACCEPT
-A INPUT -p tcp --sport 53 -m state --state ESTABLISHED -j ACCEPT
-A INPUT -p udp --sport 123 -m state --state ESTABLISHED -j ACCEPT
-A INPUT -p icmp -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT
-A INPUT -p tcp -m tcp --dport 22 -m state --state NEW,ESTABLISHED -j ACCEPT
# Allow loopback interface
-A INPUT -i lo -j ACCEPT
Е
AK
*mangle
:PREROUTING ACCEPT [0:0]
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
-A POSTROUTING -o virbr1 -p udp -m udp --dport 68 -j CHECKSUM --checksum-fill
COMMIT
*nat
:PREROUTING ACCEPT [0:0]
:INPUT ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
-A PREROUTING -i eth1 -p tcp --dport 2222 -j DNAT --to 192.168.100.10:22
-A PREROUTING -i eth1 -p tcp --dport 80 -j DNAT --to 192.168.100.10:80
-A PREROUTING -i eth1 -p tcp --dport 443 -j DNAT --to 192.168.100.10:443
# KVM Virtual Subnets
-A POSTROUTING -s 192.168.100.0/24 -d 224.0.0.0/24 -j RETURN
-A POSTROUTING -s 192.168.100.0/24 -d 255.255.255.255/32 -j RETURN
-A POSTROUTING -s 192.168.100.0/24 ! -d 192.168.100.0/24 -p tcp -j MASQUERADE --to-ports 1024-65535
-A POSTROUTING -s 192.168.100.0/24 ! -d 192.168.100.0/24 -p udp -j MASQUERADE --to-ports 1024-65535
-A POSTROUTING -s 192.168.100.0/24 ! -d 192.168.100.0/24 -j MASQUERADE
-A POSTROUTING -s 192.168.122.0/24 -d 224.0.0.0/24 -j RETURN
-A POSTROUTING -s 192.168.122.0/24 -d 255.255.255.255/32 -j RETURN
-A POSTROUTING -s 192.168.122.0/24 ! -d 192.168.122.0/24 -p tcp -j MASQUERADE --to-ports 1024-65535
-A POSTROUTING -s 192.168.122.0/24 ! -d 192.168.122.0/24 -p udp -j MASQUERADE --to-ports 1024-65535
-A POSTROUTING -s 192.168.122.0/24 ! -d 192.168.122.0/24 -j MASQUERADE
COMMIT
*filter
:INPUT DROP [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p udp --sport 53 -m state --state ESTABLISHED -j ACCEPT
-A INPUT -p tcp --sport 53 -m state --state ESTABLISHED -j ACCEPT
-A INPUT -p udp --sport 123 -m state --state ESTABLISHED -j ACCEPT
-A INPUT -p icmp -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT
-A INPUT -p tcp -m tcp --dport 22 -m state --state NEW,ESTABLISHED -j ACCEPT
# Allow loopback interface
-A INPUT -i lo -j ACCEPT