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  1. #1

    Question Cpanel DNS-Only VPS with 512mb RAM. Use 32bit or 64bit CentOS?

    Hello,

    Do you recommend 32bit or 64bit CentOS 6.x for a cpanel DNS-Only VPS with 512mb RAM?

    Thanks.
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  2. #2
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    32bit. bind and it's children will consume less memory.

  3. #3
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    Use 32-bit for less ram consumption
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  4. #4
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    I would recommend you to use 32 bit operating system since you are going to have 512 MB RAM in your VPS.
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  5. #5
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    +1 for 32 Bit. Considering you have 512MB RAM, there is no need to run 64 Bit unless a certain application you are looking to run requires it. 32 Bit also consumes less of a memory footprint leaving you with more resources for your apps.

  6. #6
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    32 bit will consume less memory.
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  7. #7
    Thanks everyone.

    Do you recommend openVZ or XEN virtualizatoin type for these small DNS-Only VPS servers?
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  8. #8
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    OpenVZ is a little faster then Xen if setup correctly and uses less resources. I would recommed OpenVZ over Xen.
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  9. #9
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    Quote Originally Posted by mrzippy View Post
    Hello,

    Do you recommend 32bit or 64bit CentOS 6.x for a cpanel DNS-Only VPS with 512mb RAM?

    Thanks.
    32Bit.

    Also how many zones you will be serving because 512MB might be an overkill.

    For instance 1,000 zones could be easily served with a cluster using 128MB Ram cluster members depending upon traffic levels.

  10. #10
    We currently have about 3k zones.

    What do you think? 512mb is too much?
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  11. #11
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    Quote Originally Posted by mrzippy View Post
    We currently have about 3k zones.

    What do you think? 512mb is too much?
    It sounds about right but you could likely get away with 256MB depending upon traffic levels, etc

    The thing is with VPSes is that you can upgrade and downgrade within a moments notice so for instance if you notice your Ram history is pretty low then you could downgrade after acouple of months or so.

    Regards,

  12. #12
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    Quote Originally Posted by mrzippy View Post
    We currently have about 3k zones.

    What do you think? 512mb is too much?
    We have about 5k zones, using 32bit with 256mb ram

  13. #13
    Quote Originally Posted by asc2000 View Post
    We have about 5k zones, using 32bit with 256mb ram
    Thanks.

    Are you using openVZ or XEN?
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  14. #14
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    XEN /OpenVZ

    I believe XEN has better performace over OpenVZ
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  15. #15
    Quote Originally Posted by ceylonhost View Post
    I believe XEN has better performace over OpenVZ
    I do not admit with you, it depends on your requirements.
    If not overselling, OpenVZ should provide the best performance since there is almost no virtualization overhead compared to bare metal server.

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