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Marc Landmann

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    An error occurred while saving the comment
    Marc Landmann commented  · 

    Example:

    A bunch of CNAMEs is pointing to the dynamic IP address of server 1.

    smtp.mydomain.org -> myserver1.dynamic_dns_service.org
    pop.mydomain.org -> myserver1.dynamic_dns_service.org
    www.mydomain.org -> myserver1.dynamic_dns_service.org
    video.mydomain.org -> myserver1.dynamic_dns_service.org
    ftp.mydomain.org -> myserver1.dynamic_dns_service.org

    Now you want to redirect all services from server 1 to backup server 2. You would have to change all DNS entries.

    smtp.mydomain.org -> myserver2.dynamic_dns_service.org
    pop.mydomain.org -> myserver2.dynamic_dns_service.org
    www.mydomain.org -> myserver2.dynamic_dns_service.org
    video.mydomain.org -> myserver2.dynamic_dns_service.org
    ftp.mydomain.org -> myserver2.dynamic_dns_service.org

    This can be inconvenient if the entries are not in a common configuration file.

    It would be easier if you just had to change one entry.

    mydomain.org -> myserver1.dynamic_dns_service.org

    smtp.domain.org -> mydomain.org
    pop.smtp.org -> mydomain.org
    www.smtp.org -> mydomain.org
    video.smtp.org -> mydomain.org
    ftp.smtp.org -> mydomain.org

    Now it is easy to swap all services from server 1 to server 2:
    mydomain.org -> myserver2.dynamic_dns_service.org

    An error occurred while saving the comment
    Marc Landmann commented  · 

    Same problem here. We need to point one CNAME record to an another CNAME record and are not able to achieve this using plesk.

    Marc Landmann supported this idea  · 

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