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   Author  Topic: IP address in oracle network files  (Read 2945 times)
Pete Finnigan
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IP address in oracle network files
« on: Apr 2nd, 2009, 6:32pm »
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What is the reason of justifcation for using the IP address instead of the hostname in Oracle Network files?
 
The DISA stig and CIS documents both state to make this change.
 
thanks,
 
David Ehresmann
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Pete Finnigan
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Re: IP address in oracle network files
« Reply #1 on: Apr 3rd, 2009, 12:19pm »
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Hi David,
 
The reason is that hostnames are easier to subvert/spoof than an IP Address is. Someone could place a rogue DNS server in an organisation and play man-in-the-middle attacks. Basically this is not number 1 on the list of Oracle security hardening advice but if you want to go the extra mile its worth doing simply because IP addresses are harder to spoof than hostnames. I appreciate that hostnames are easier to work with in some cases with Oracle because of things like failover.  
 
If you were using something like valid node checking for instance ip addresses would make spoofing your way past it harder than if hostnames were used.
 
cheers
 
Pete
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