Why servers in DMZ have 2 different IP addresses?

[Former Member]

I notice that all of my company's unix servers in the DMZ have 2 IP addresses.

Could you expalin why?

Thanks! Points will be given.

[Former Member]

Hi Laura,

DMZ is used as Security factor!

In this you use the NAT protocol, which has an external IP adress and a internal IP address.

The external IP address is available for pulbic and the internal for the System to work with but not known to pulbic for security reasons!

For details on that :

http://documents.made-it.com/sap-int.html

http://compnetworking.about.com/cs/networksecurity/g/bldef_dmz.htm

Regards,

Prem

http://compnetworking.about.com/cs/networksecurity/g/bldef_dmz.htm

[Former Member]

Hello Laura,

Check the link

http://articles.techrepublic.com.com/5100-6350-1061732.html

Hope it helps.

Regards,

Jafer