CentOS6.5 port forwarding

Forward the port XX that accesses the local machine to the port vi/etc/sysctl of other machines. net. ipv4.ip _ forward = 1 the default value is 0. in this way, iptalbesFORWARD is allowed. I modified the file directly: sudovi/etc/sysconfig/iptables.

Forward the port XX that accesses the local machine to the port of another machine.
Net. ipv4.ip _ forward = 1 in the vi/etc/sysctl. conf configuration file. the default value is 0, which allows iptalbes FORWARD
I directly edited the file and changed it:Sudo vi/etc/sysconfig/iptables

 

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1. # Generated by iptables-save v1.4.7 on Sat MaR1 17:49:09 2014
2. * Nat
3. : Prerouting accept [0: 0]
4. : Postrouting accept [0: 0]
5. : Output accept [0: 0]
6. -A prerouting-p tcp-m tcp -- dport 8012-j DNAT -- to-destination 192.168.1.253: 8012
7. -A postrouting-p tcp-m tcp -- dport 8012-j MASQUERADE
8. -A prerouting-p tcp-m tcp -- dport 8000-j DNAT -- to-destination 192.168.1.253: 8000
9. -A postrouting-p tcp-m tcp -- dport 8000-j MASQUERADE
10. -A prerouting-p tcp-m tcp -- dport 8003-j DNAT -- to-destination 192.168.1.253: 8003
11. -A postrouting-p tcp-m tcp -- dport 8003-j MASQUERADE
12. -A prerouting-p tcp-m tcp -- dport 8009-j DNAT -- to-destination 192.168.1.253: 8009
13. -A postrouting-p tcp-m tcp -- dport 8009-j MASQUERADE
14. -A prerouting-p tcp-m tcp -- dport 8880-j DNAT -- to-destination 192.168.1.253: 8880
15. -A postrouting-p tcp-m tcp -- dport 8880-j MASQUERADE
16. -A prerouting-p tcp-m tcp -- dport 8010-j DNAT -- to-destination 192.168.1.253: 8010
17. -A postrouting-p tcp-m tcp -- dport 8010-j MASQUERADE
18. -A prerouting-p tcp-m tcp -- dport 8443-j DNAT -- to-destination 192.168.1.253: 8443
19. -A postrouting-p tcp-m tcp -- dport 8443-j MASQUERADE
22. -A prerouting-p tcp-m tcp -- dport 8090-j DNAT -- to-destination 192.168.1.244: 8090
23. -A postrouting-p tcp-m tcp -- dport 8090-j MASQUERADE
24. -A prerouting-p tcp-m tcp -- dport 8080-j DNAT -- to-destination 192.168.1.244: 8080
25. -A postrouting-p tcp-m tcp -- dport 8080-j MASQUERADE
27. COMMIT
28. # Completed on Sat Mar 1 17:49:09 2014