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l_lupos's avatar
l_lupos
Icon for Nimbostratus rankNimbostratus
Aug 30, 2021

Anyone have experience configuring Split DNS?

We have situation where the BIND stores internal and external records on 2 different views.

We are having problem migrating that domain on the F5 because apparently 2 views isn't working on the F5 when DNS express is activated, the BIND also works when DNS express is activated. By the way all records have the same name but different IP (external and internal), the F5 has a public IP for external users and private IP for internal users

 

If anyone has pointers on how to do this or any approach would be highly appreciated

application delivery
BIG-IP DNS

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  • SanjayP's avatar
    SanjayP
    Icon for Nacreous rankNacreous
    Aug 31, 2021

    I'm not sure about best practice, but one of the way could be to create 2 diffrent pools (external and internal) and use iRule at WideIP level to send to external vs internal pool based on source IP (e.g LDNS or clientIP)

  • l_lupos's avatar
    l_lupos
    Icon for Nimbostratus rankNimbostratus
    Aug 31, 2021

    Hello, thank you for taking time to answer.

     

    When you say 2 different pools, I will make a WideIP and use the F5 listener IP as the pool members?

     

    Regards

    • SanjayP's avatar
      SanjayP
      Icon for Nacreous rankNacreous
      Aug 31, 2021

      No. 2 pools, where for external pool it will have external IP of A record and internal pool would have internal IP.

      • l_lupos's avatar
        l_lupos
        Icon for Nimbostratus rankNimbostratus
        Sep 09, 2021

        Ohh okay, so each records have one wide IP. that's too much work damn. so we need to create a virtual server for each IP address? We dont actually have F5s for the servers. they are stand alone servers and we use the F5 GTM as authoritative DNS.