double entry in DNS reverse lookup zone

Discussion in 'Windows Small Business Server' started by ntwrkadmn, Aug 2, 2004.

  1. ntwrkadmn

    ntwrkadmn Guest

    There's multiple records in the reverse lookup zone on my
    SBS2000 server. One is the computer name with the domain
    suffix attached and the other is just the computer name
    and their both using the same ip address. Is this
    correct? The servers not setup to scavenge stale resource
    records, should it be?
    ntwrkadmn, Aug 2, 2004
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  2. While this is technically correct (per the RFC's), it can cause
    problems, but mainly via Internet sites (i.e, I was somewhere where
    the DNS service we used added a reverse lookup for each of the domains
    that were added on its public IP address!). This mainly caused
    problems with mail authentication at the helo/ehlo stage, but also
    looked bad (imho). However, if its refering to a private IP address,
    it shouldn't cause any problems, and that should also go for deleting
    one of the entries (I would have zapped the entry refering to just the
    computer name, and see if it re-created itself after certain events).

    Andrew Hodgson, Aug 2, 2004
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