vi /etc/sysctl.conf
: net.ipv4.ip_forward = 1 :
sysctl -p /etc/sysctl.conf cat /proc/sys/net/ipv4/ip_forward
lsmod | grep ip_tables
vi /etc/sysconfig/iptables
: *nat :PREROUTING ACCEPT [0:0] :POSTROUTING ACCEPT [0:0] :OUTPUT ACCEPT [0:0] [0:0] -A POSTROUTING -s 192.168.0.0/255.255.255.0 -o eth0 -j MASQUERADE [0:0] -A PREROUTING -p tcp --dport 8080 -j DNAT --to 192.168.0.241:80 [0:0] -A PREROUTING -p tcp --dport 8081 -j DNAT --to-destination 192.168.0.22:8080 COMMIT :
*filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] -A FORWARD -i eth1 -j ACCEPT -A FORWARD -o eth1 -j ACCEPT :OUTPUT ACCEPT [0:0]
service iptables restart