CentOS 6.5 端口转发

把访问本机的XX端口，转发到其他机器的端口
vi /etc/sysctl.conf配置文件的 net.ipv4.ip_forward = 1 默认是0    这样允许iptalbes FORWARD
我是直接编辑文件改的 ：sudo vi /etc/sysconfig/iptables

# Generated by iptables-save v1.4.7 on Sat Mar  1 17:49:09 2014
*nat
:PREROUTING ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A PREROUTING -p tcp -m tcp --dport 8012 -j DNAT --to-destination 192.168.1.253:8012 
-A POSTROUTING -p tcp -m tcp --dport 8012 -j MASQUERADE 
-A PREROUTING -p tcp -m tcp --dport 8000 -j DNAT --to-destination 192.168.1.253:8000 
-A POSTROUTING -p tcp -m tcp --dport 8000 -j MASQUERADE 
-A PREROUTING -p tcp -m tcp --dport 8003 -j DNAT --to-destination 192.168.1.253:8003 
-A POSTROUTING -p tcp -m tcp --dport 8003 -j MASQUERADE 
-A PREROUTING -p tcp -m tcp --dport 8009 -j DNAT --to-destination 192.168.1.253:8009
-A POSTROUTING -p tcp -m tcp --dport 8009 -j MASQUERADE 
-A PREROUTING -p tcp -m tcp --dport 8880 -j DNAT --to-destination 192.168.1.253:8880
-A POSTROUTING -p tcp -m tcp --dport 8880 -j MASQUERADE 
-A PREROUTING -p tcp -m tcp --dport 8010 -j DNAT --to-destination 192.168.1.253:8010
-A POSTROUTING -p tcp -m tcp --dport 8010 -j MASQUERADE 
-A PREROUTING -p tcp -m tcp --dport 8443 -j DNAT --to-destination 192.168.1.253:8443
-A POSTROUTING -p tcp -m tcp --dport 8443 -j MASQUERADE 


-A PREROUTING -p tcp -m tcp --dport 8090 -j DNAT --to-destination 192.168.1.244:8090
-A POSTROUTING -p tcp -m tcp --dport 8090 -j MASQUERADE 
-A PREROUTING -p tcp -m tcp --dport 8080 -j DNAT --to-destination 192.168.1.244:8080
-A POSTROUTING -p tcp -m tcp --dport 8080 -j MASQUERADE 

COMMIT
# Completed on Sat Mar  1 17:49:09 2014