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Remote desktop farm with wildcard cert

Posted on 2011-03-13
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Last Modified: 2013-11-21
Hi,
I have setup a remote desktop farm

Gateway: gateway.mydomain.org --> gw01.internal.local,gw02.internal.local
RD farm : farm.nlb.mydomain.org --> rd01.internal.local,rd02.internal.local,rd03.internal.local,rd04.internal.local

I have assigned a wildcard cert to all the remote desktop servers and the gateway servers but seem to have a little problem.

I get a cert error "Name mismatch"
requested remote computer
farm.nlb.mydomain.org
Name in the certificate from the remote computer
*.mydomain.org

Do i need to buy another wildcard cert to use on the remote desktop servers or do i need to do some thing else ?
Can i wildcard cert not be used on child domains?
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Question by:dkSoftware
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by:dkSoftware
ID: 35126945
Has no one faced this issue before ?
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Dave_Dietz earned 500 total points
ID: 35131135
The problem is that the URl doesn't conform to the wildcard specification.

*.mydomain.org will match for server1.mydomain.org, thatcomputer.mydomain.org, otherserver.mydomain.org but does not match bobs.computer.mydomain.org.

A wildcard certificate can only use a wildcard for the leftmost entity of the host portion fo the URI and there can be no dots in that entity.  To match farm.nlb.mydomain.org you would need a certificate for *.nlb.mydomain.org which would then work for fram.nlb.mydomain.org, farm2.nlb.mydomain.org, etc.

To have a certificate that works for both gateway.mydomain.org and farm.nlb.mydomain.org you will need to get a SAN certificate that specifies those DNS names in the Subject Alternate Field and install that certificate on your servers instead.

Dave Dietz
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Author Comment

by:dkSoftware
ID: 35134133
Thank you very much for this.
This confirms my theory and I will purchase another wildcard cert. to solve my problem :)
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