Capital letters

Discussion in 'DNS Server' started by Carlos, Mar 2, 2005.

  1. Carlos

    Carlos Guest


    In my DNS server some of the workstations are registering with his names in
    capital letters, but is not in all workstations, how can I prevent this? I
    need that the workstations register only in small letters because we are
    using reverse lookup to use Unix printig.

    Thank you in advance

    Carlos, Mar 2, 2005
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  2. Carlos

    Herb Martin Guest

    DNS is traditionally NOT case sensitive.

    If you have DNS clients that are treating DNS
    as case sensitive the fautl lies with them.

    (Url paths may be case sensitive in the dir/file
    portion but not in the DNS portion.)
    Herb Martin, Mar 3, 2005
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  3. Check your computernames at the actual computers. They will register their
    names as they are entered in their properties.


    Please direct all replies ONLY to the Microsoft public newsgroups
    so all can benefit.

    This posting is provided "AS-IS" with no warranties or guarantees
    and confers no rights.

    Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
    Microsoft Windows MVP - Windows Server - Directory Services

    Security Is Like An Onion, It Has Layers
    HAM AND EGGS: A day's work for a chicken;
    A lifetime commitment for a pig.
    Ace Fekay [MVP], Mar 3, 2005
  4. In
    DNS is not case sensitive, but it does return the answer in the same case

    Best regards,
    Kevin D4 Dad Goodknecht Sr. [MVP]
    Hope This Helps
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    Kevin D. Goodknecht Sr. [MVP], Mar 3, 2005
  5. Carlos

    Carlos Guest


    Yes, I know that DNS is not case sensitive, but in my enviroment when the
    unix server query to the windows 2003 server for a workstation record and
    this record is in capital letters in the DNS the Unix can not redirect the
    print jobs. I donĀ“t understand why a few records from workstations appears
    in my Windows 2003 DNS in capital letters??

    For example, if you look in the DNS console in any of the reverse zones
    appears in this way:

    Name Type Data PTR PTR PTR

    Thanks for your help,
    Carlos, Mar 3, 2005
  6. Carlos

    Carlos Guest

    I changed in one of this workstations the name and after put the old name in
    small letters to try, and after in the workstation I ran ipconfig
    /registerdns and look in the DNS: Now in the primary zone appears the name
    in capital letters and in the reverse zone appears in small letters.
    Carlos, Mar 3, 2005
  7. Carlos

    Herb Martin Guest

    Are the workstations registering for themselves
    or having the DHCP server do it? (Might be the
    Herb Martin, Mar 4, 2005
  8. Carlos

    Carlos Guest

    Thanks for your reply.

    The DHCP server is registering the workstations in the DNS
    Carlos, Mar 4, 2005
  9. In
    Are they registering correctly now? If not, have you tried deleting the
    lease in DHCP, going to the machines that you've changed the name, and
    releasing and renewing the lease to see if that works?

    Ace Fekay [MVP], Mar 7, 2005
  10. Carlos

    Todd J Heron Guest

    I've seen the behavior the OP is complaining about in a large enterprise
    network I support. AD-integrated DDNS, al flavors of Windows workstations.
    I've seen at least one XP SP2 workstation which by all checks is in small
    caps at the workstation, as shown by output of ipconfig /all and under
    computer properties, but is shown as large caps (in some cases) as shown in
    the DNS console. I haven't figured it out either, but then again I probably
    won't spend a whole lot of time trying since MS DNS is not case-sensitive.
    But with respect to the OP's problem regarding UNIX printing, I will make a
    note the answer when someone else finally does... :)
    Todd J Heron, Mar 7, 2005
  11. In
    I can understand Todd. I've seen issues in larger networks too, but I
    haven't seen this one. Do you think it can be coming from WINS?

    Maybe changing the default name checking Multibyte UTF8 to something else,
    such as All Names or Strict ANSI. Here's a snippet from the DNS Help files
    that shows DNS is supposed (with the default UTF8 settings) to downcase the
    character set of whatever it receives for compatibility reasons:

    How the DNS service implements UTF-8
    To provide standards compatibility and interoperability with other DNS
    implementations, the DNS service uses uniform downcasing of any received
    character data. In this process, the DNS service converts all uppercase
    characters used in standard US-ASCII data to lowercase equivalent data for
    the following reasons:

    a.. To maintain compatibility with current and existing DNS standards.
    b.. To provide interoperability with DNS server implementations that do
    not recognize or support UTF-8 encoding.

    Ace Fekay [MVP], Mar 8, 2005
  12. In

    Also, I've noticed Mac clients will reg upper case sometimes. I dont know

    Ace Fekay [MVP], Mar 8, 2005
  13. Carlos

    Todd J Heron Guest

    Hmmmm.... I'll look into this and get back.
    Todd J Heron, Mar 8, 2005
  14. In
    Ok, cool. let me know what you find out.
    Ace Fekay [MVP], Mar 9, 2005
  15. Carlos

    Todd J Heron Guest

    "Ace Fekay [MVP]" wrote in message
    Ace, can't say that I have researched this any further or tested it, b/c I
    haven't. But I have discovered one thing. Maybe it's incidental, or maybe
    it's related, I don't know. I've noticed that Windows Server 2003, running
    DNS, does not exhibit the tendency to display client names (dynamically
    registered) in capitol letters on the dozen or so 2003 servers I have seen
    recently. This problem is evident with the one Windows 2000 Server running
    DNS which I examined. However, the OP stated he was running Windows Server
    2003. So my contribution to this matter may be in fact be, meaningless.
    Todd J Heron, Mar 24, 2005
  16. Todd, your contribution is always helpful, including this post with your
    observations. It never hurts!

    Also, replied privately.

    Ace Fekay [MVP], Mar 28, 2005
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