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Delphix Engine unable to resolve scanname(rac database) under sepeate VLAN without dns server

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  • 1.  Delphix Engine unable to resolve scanname(rac database) under sepeate VLAN without dns server

    Posted 08-10-2015 02:51:00 PM
    Delphix Express is not able to resovle scanname(oracle rac) under seperate VLAN without dns server.Is there any way to edit /etc/named.conf under prebuild delphix engine to fix this issue?
    Or any ideas who had same issues?


  • 2.  RE: Delphix Engine unable to resolve scanname(rac database) under sepeate VLAN without dns server

    Posted 08-10-2015 02:58:00 PM
    Cico,

    You can add/change the DNS settings of the Delphix Engine via the admin portal. From the login page, click the "Server Setup" link, then enter the username and password (default is sysadmin/sysadmin). Once there you can change the dns settings. See pics below

    ">https://d2r1vs3d9006ap.cloudfront.net/s3_images/1254464/21775-14v3jxh_inline.png?1439222244">
    ">https://d2r1vs3d9006ap.cloudfront.net/s3_images/1254465/22541-1gwcvl9_inline.png?1439222249">
    ">https://d2r1vs3d9006ap.cloudfront.net/s3_images/1254466/21775-d2osc7_inline.png?1439222254">


  • 3.  RE: Delphix Engine unable to resolve scanname(rac database) under sepeate VLAN without dns server

    Posted 08-10-2015 03:47:00 PM
    Thanks for your Reply.

    However problem is I do not have dns server under this VLAN that is why I need to find a way to edit /etc/named.conf under engine server.
    Without dns server did anybody able to find a way to let engine resolve scanname?


  • 4.  RE: Delphix Engine unable to resolve scanname(rac database) under sepeate VLAN without dns server

    Posted 08-10-2015 03:51:00 PM
    Oh, I misunderstood your question earlier. The underlying operating system is not accessible to perform the suggested options. As this is not exclusive to Delphix Express, I am going to move this question to the general forum so that you can get a wider audience. 


  • 5.  RE: Delphix Engine unable to resolve scanname(rac database) under sepeate VLAN without dns server
    Best Answer

    Posted 08-10-2015 04:28:00 PM
    I discussed this with some colleagues to get a consensus before answering. Ultimately, if you need to have name resolution, you need to be able to access a DNS server. The operating system of the Delphix Engine is not accessible, nor modifiable. You could either:
    1. Ask for fw rules to allow you to query the DNS servers
    2. Setup your own little DNS stubs on a Linux/Windows machine in your VLAN to service those requests for you.


  • 6.  RE: Delphix Engine unable to resolve scanname(rac database) under sepeate VLAN without dns server

    Posted 08-10-2015 05:06:00 PM
    Thanks Adam for those details.

    I will build my dns server for this VLAN.


  • 7.  RE: Delphix Engine unable to resolve scanname(rac database) under sepeate VLAN without dns server

    Posted 08-14-2015 12:49:00 PM
    Hi Adam,

    I have multiple DNS servers under my VLAN and I saw the order of DNS causes the name resolution timeout issues.
    Can you please check what is the the timeout period for first dns query from Delphix Engine internal?




  • 8.  RE: Delphix Engine unable to resolve scanname(rac database) under sepeate VLAN without dns server

    Posted 08-14-2015 02:16:00 PM
    I will ask.