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Backing up NIS & NFS - Linux Setup, Configuration & Administration

Hi, Wonder if anyone can help. I'm considering my companies' disaster recovery plan, and currently we've got a Linux server powering our NIS/NFS setup. If this server dies, so does NIS and NFS. In the same way that with a Windows domain you can have primary and secondary domain controllers, is it possible to have primary and secondary NIS/NFS controllers, so that if one dies the other can carry on? Will the secondary keep a complete mirror copy of the domain? Thanks for anyones help and time, Cheers Steve....

  1. #1

    Default Backing up NIS & NFS

    Hi,

    Wonder if anyone can help. I'm considering my companies' disaster
    recovery plan, and currently we've got a Linux server powering our
    NIS/NFS setup. If this server dies, so does NIS and NFS.

    In the same way that with a Windows domain you can have primary and
    secondary domain controllers, is it possible to have primary and
    secondary NIS/NFS controllers, so that if one dies the other can carry
    on? Will the secondary keep a complete mirror copy of the domain?

    Thanks for anyones help and time,
    Cheers Steve.
    Steve Guest

  2. #2

    Default Re: Backing up NIS & NFS


    "Steve Jenkins" <com> wrote in message
    news:google.com... 

    NIS is easy. Set up "slave" servers, and regularly transmit your source
    tables to an off-site location that can take over as the new NIS master if
    necessary.

    NFS is another story. If it's your primary file server and stuff is changing
    on it dynamically, your only hope is frequent backups to an off-site server.
    You've got to get file-reads to happen on whichever machine is up, and
    file-write's to reliably and synchronously occur to *both* servers. If you
    have to go this route and have graceful fll-through behavior, take a look at
    OpenAFS....


    Nico Guest

  3. #3

    Default Re: Backing up NIS & NFS

    Steve Jenkins wrote: 

    What we do is we have an NIS master and an NIS slave. Both
    also export NFS home areas using a disk that both systems can
    see. If one system fails, the NFS mounts will no longer work.
    However, it is fairly trivial to mount the failed machine's
    NFS area and export it.... and then change the DNS entry
    to use just the one server for a while.

    Chris Guest

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