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  • kernel tuning for cloud VM

    From Jeff Peng@21:1/5 to All on Sun Jun 9 02:00:01 2024
    Hello

    I am using the VMs from big providers such as AWS and Azure.
    most of the VMs are 2core/4gb ram/100gb disk etc.
    They are used for running the regular web services (java, php etc), with
    debian 11 installed.

    Every VM I just use the default system configuration.
    Do I need to update some kernel config for the VMs? such as
    socket_buffer, max_fd etc. what's the suggested options for this kind of
    VM?

    Thanks.

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  • From [email protected]@21:1/5 to Jeff Peng on Sun Jun 9 07:00:01 2024
    On Sun, Jun 09, 2024 at 07:41:58AM +0800, Jeff Peng wrote:
    Hello

    I am using the VMs from big providers such as AWS and Azure.

    I'd ask AWS/Azure support for that. They do knowi their infrastructure
    best, we hope, and, after all, they are taking money for their service.

    Cheers
    --
    t

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  • From Geert Stappers@21:1/5 to [email protected] on Sun Jun 9 09:40:01 2024
    On Sun, Jun 09, 2024 at 06:58:21AM +0200, [email protected] wrote:
    On Sun, Jun 09, 2024 at 07:41:58AM +0800, Jeff Peng wrote:
    Hello

    I am using the VMs from big providers such as AWS and Azure.

    I'd ask AWS/Azure support for that.

    Yes, talking _with_ your vendor is the way to go.


    They do known their infrastructure best, we hope, and, after all,
    they are taking money for their service.


    Text from https://cloud.debian.org/images/cloud/

    Debian Official Cloud Images

    In this page you can find the Debian cloud images provided by the Debian
    Cloud Team for some cloud providers. End users do not need to download
    these images, as they are usually provided by their cloud providers.



    How can I verify my download is correct and exactly what has been
    created by Debian?

    For the current official images (in the per-distribution directories),
    the safest method is to download the image and checksum files over TLS
    from cloud.debian.org or cdimage.debian.org. These names support DNSSEC,
    so a validating resolver can ensure that a client is connected to a
    Debian host. And TLS ensures that the data is not manipulated in flight.

    The legacy OpenStack images (in the OpenStack/ directory) provide
    checksums and signatures. See SHA512SUMS.sign, etc. For more information
    about the verification steps, read the verification guide

    If you're interested in contributing checksum signatures for the current
    images, please reach us on the list: debian-cloud at lists.debian.org.



    Other questions?

    Questions can be forwarded to the Debian Cloud Team: debian-cloud
    at lists.debian.org.



    Text from me

    Invest in win-win-situations


    Groeten
    Geert Stappers
    --
    Silence is hard to parse

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  • From Michael =?utf-8?B?S2rDtnJsaW5n?=@21:1/5 to All on Sun Jun 9 12:40:01 2024
    On 9 Jun 2024 07:41 +0800, from [email protected] (Jeff Peng):
    debian 11 installed.

    Keep in mind that Debian 11 will be out of oldstable in about a year,
    with the release of 13/Trixie; and it will be out of security support
    in a few weeks, with the transition to long-term support. Depending on
    the complexity of your setup, you may want to start planning the
    upgrade process. (I assume that there is some reason why you haven't
    yet upgraded to Debian 12.)

    --
    Michael Kjörling 🔗 https://michael.kjorling.se “Remember when, on the Internet, nobody cared that you were a dog?”

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  • From Jeff Peng@21:1/5 to All on Sun Jun 9 14:00:01 2024
    many java dev ecosystem (such as big data stacks) are in debian 11.
    it's hard to upgrade to 12 at this time.

    Thanks.

    Keep in mind that Debian 11 will be out of oldstable in about a year,
    with the release of 13/Trixie; and it will be out of security support
    in a few weeks, with the transition to long-term support. Depending on
    the complexity of your setup, you may want to start planning the
    upgrade process. (I assume that there is some reason why you haven't
    yet upgraded to Debian 12.)

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