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Old 03-10-2005, 05:23 PM   #1
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Registered: Feb 2005
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Subdomains and security with regards to root domain

I'm hoping to get a confirmation from the security gurus that my thinking is correct. I'm looking to set up a subdomain such as from my main domain ( using a A record in the DNS. So the subdomain will in fact be hosted on a different server. The reason for this is because I'll be putting up some PHP scripts that have not been thoroughly tested yet for security, so in case the PHP scripts are exploited, the hacker can atmost only affect the subdomain.

Is my thinking correct on this as far as full isolation between the subdomain and main domain as far as security when the former is hosted on a separate server using A record? I mean, the two domains should basically be on two separate servers in every since of the word.

Old 03-10-2005, 05:48 PM   #2
Registered: Apr 2002
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Yes, you should be fine because you aren't setting up a subdomain. A subdomain would mean you own and you are relegating to someone else to create,, etc. By creating, you are simply creating the host foo in the domain At any rate, a compromise of this host doesn't neccesarily mean a compromise of the entire domain, assuming that you don't have sensitive info like usernames and passwords for stored somewhere on foo.


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