When Primary is down for some time... The Secondary stops resolving domains.

Discussion in 'DNS Server' started by Mr. Backup, Sep 12, 2005.

  1. Mr. Backup

    Mr. Backup Guest

    I have two DNS Servers one is what should be the SOA for a few domains, and
    the other is the Secondary. This is a Primary, Secondary DNS setup. All
    would seem to be working fine, but when I tested by shutting down the
    Primary some, not all, but some of the domain that are listed in the
    secondary stopped resolving. Does anyone know why this would happen?



    Thanks.
     
    Mr. Backup, Sep 12, 2005
    #1
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  2. Mr. Backup

    Todd J Heron Guest

    Are the clients pointed to the Secondary DNS as their "Alternate DNS server"
    under their TCP/IP properties?

    --
    Todd J Heron, MCSE
    Windows Server 2003/2000/NT; CCA
    ----------------------------------------------------------------------------
    This posting is provided "as is" with no warranties and confers no rights

    I have two DNS Servers one is what should be the SOA for a few domains, and
    the other is the Secondary. This is a Primary, Secondary DNS setup. All
    would seem to be working fine, but when I tested by shutting down the
    Primary some, not all, but some of the domain that are listed in the
    secondary stopped resolving. Does anyone know why this would happen?



    Thanks.
     
    Todd J Heron, Sep 14, 2005
    #2
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  3. Mr. Backup

    Mr. Backup Guest

    yes... but thats not the main issue...
    What also happens is this... say i have the domain xyz.com... Well when i
    click on it from the secondary dns server when the primary has been off for
    a few hours it shows up in RED, with no information and no longer resolving
    the xyz.com domain
     
    Mr. Backup, Sep 16, 2005
    #3
  4. This usually means the SOA Expire Time is too short, set the SOA expire time
    to at least two weeks (14 Days or 1209600 Seconds) Four weeks is my
    preference. Also, make sure there is an NS record for both the Primary and
    Secondary DNS servers.



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    Kevin D. Goodknecht Sr. [MVP], Sep 16, 2005
    #4
  5. Mr. Backup

    Mr. Backup Guest

    I wouldn't have though of that, as the timeout is now set to 24 hours. this
    isn't beneficial is the Primary is down for any reason for more than a day.

    Thank you for the info
     
    Mr. Backup, Sep 19, 2005
    #5
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