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How to disable BIND version querying??? help

Discussion in 'Bind / DNS / Nameserver Issues' started by bsasninja, Jul 19, 2008.

  1. bsasninja

    bsasninja Well-Known Member

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    Hi I have a doubt with something I cant find.
    I did a security control to my DNS with this site http://www.howismydns.com/

    Everything shows fine execpt for the following:

    The nameserver returned something as their version numbers. Check that these do not look like real ones (better yet, disable querying of the version number altogether):

    Nameserver Version
    ns1.server.com not available
    ns2.server.com not available


    This is cause at /etc/named.conf I set version "not available"; to "hide" the bind version number... but which is the way to fully disable querying of the version number????????
    For example I did a DNS check to google.com with the same site and this warning message doesnt appear, its fine: "Your nameservers do not seem to return any version information".

    I would like to disable querying of the version number. Which is the line I should add to named.conf?

    Thanks!
     
  2. inetbizo

    inetbizo Well-Known Member

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    Twitter:
    /etc/named.conf

    In the options{} section, change version "xx.xx"; to version "";
     
  3. bsasninja

    bsasninja Well-Known Member

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    Awesome! Thanks!
     
  4. EEKdood

    EEKdood Member

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    It seems that version ""; does not achieve the desired results. I discovered that version none; is the correct way to disable, rather than obscure, the BIND version query.
     
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