Array
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            [1] => projects_and_solutions/realizovannye-proekty/
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            [3] => Array
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            [1] => technology
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            [1] => technology/ustroystvo-videoanalitika-NEYROII/
            [2] => Array
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            [3] => Array
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                    [IS_PARENT] => 
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            [4] => 
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            [1] => technology/termokozhukhi-smartec/
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            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
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            [1] => technology/teplovizory-smartec/
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            [3] => Array
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            [3] => Array
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                    [DEPTH_LEVEL] => 2
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            [3] => Array
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                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
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                    [IS_PARENT] => 
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            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
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            [3] => Array
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                    [DEPTH_LEVEL] => 2
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            [4] => 
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            [1] => support/materials/
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                (
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            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
                )

            [4] => 
        )

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                (
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                    [IS_PARENT] => 
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                    [FROM_IBLOCK] => 3
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            [4] => 
        )

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            [1] => support/videos/
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                (
                )

            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
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            [4] => 
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            [0] => Проектировщикам
            [1] => support/projects/
            [2] => Array
                (
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            [3] => Array
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                    [IS_PARENT] => 
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            [1] => support/installers/
            [2] => Array
                (
                )

            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
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            [4] => 
        )

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                    [IS_PARENT] => 
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            [4] => 
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            [0] => О бренде
            [1] => company/
            [2] => Array
                (
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            [3] => Array
                (
                    [IS_PARENT] => 1
                    [DEPTH_LEVEL] => 1
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            [3] => Array
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                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
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            [4] => 
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            [1] => http://p.smartec-s.com/
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                )

            [3] => Array
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                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
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        )

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            [3] => Array
                (
                    [IS_PARENT] => 
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            [4] => 
        )

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                (
                )

            [3] => Array
                (
                    [IS_PARENT] => 
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                    [FROM_IBLOCK] => 3
                )

            [4] => 
        )

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            [1] => technology
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                (
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            [3] => Array
                (
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            [4] => 
        )

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            [1] => technology/ustroystvo-videoanalitika-NEYROII/
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                (
                )

            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
                )

            [4] => 
        )

    [5] => Array
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            [0] => Термокожухи Smartec
            [1] => technology/termokozhukhi-smartec/
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                (
                )

            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
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            [4] => 
        )

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            [1] => technology/teplovizory-smartec/
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                (
                )

            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
                )

            [4] => 
        )

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            [1] => technology/806153/
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                (
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            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
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            [4] => 
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            [1] => all_products/
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                (
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                    [IS_PARENT] => 1
                    [DEPTH_LEVEL] => 1
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            [4] => 
        )

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                (
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            [3] => Array
                (
                    [IS_PARENT] => 
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            [3] => Array
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                (
                )

            [3] => Array
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                    [IS_PARENT] => 
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                    [FROM_IBLOCK] => 3
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                (
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            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
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            [4] => 
        )

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            [1] => products/okhrannaya-signalizatsiya/
            [2] => Array
                (
                )

            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
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            [4] => 
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            [3] => Array
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                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
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            [4] => 
        )

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            [1] => products/Software/
            [2] => Array
                (
                )

            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
                )

            [4] => 
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                (
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            [3] => Array
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            [4] => 
        )

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            [1] => support/warranty/
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                (
                )

            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
                )

            [4] => 
        )

    [18] => Array
        (
            [0] => Техподдержка
            [1] => support/technical_support/
            [2] => Array
                (
                )

            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
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            [4] => 
        )

    [19] => Array
        (
            [0] => Дополнительные материалы
            [1] => support/materials/
            [2] => Array
                (
                )

            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
                )

            [4] => 
        )

    [20] => Array
        (
            [0] => Вопросы и ответы
            [1] => support/faq/
            [2] => Array
                (
                )

            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
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            [4] => 
        )

    [21] => Array
        (
            [0] => Обучающие материалы
            [1] => support/videos/
            [2] => Array
                (
                )

            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
                )

            [4] => 
        )

    [22] => Array
        (
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            [1] => support/projects/
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                (
                )

            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
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            [4] => 
        )

    [23] => Array
        (
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            [1] => support/installers/
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                (
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            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
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                (
                )

            [3] => Array
                (
                    [IS_PARENT] => 
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                    [FROM_IBLOCK] => 3
                )

            [4] => 
        )

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        (
            [0] => О бренде
            [1] => company/
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                (
                )

            [3] => Array
                (
                    [IS_PARENT] => 1
                    [DEPTH_LEVEL] => 1
                    [FROM_IBLOCK] => 3
                )

            [4] => 
        )

    [26] => Array
        (
            [0] => Социальная ответственность
            [1] => social_responsibility/
            [2] => Array
                (
                )

            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
                )

            [4] => 
        )

    [27] => Array
        (
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            [1] => http://p.smartec-s.com/
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                (
                )

            [3] => Array
                (
                    [IS_PARENT] => 
                    [DEPTH_LEVEL] => 2
                    [FROM_IBLOCK] => 3
                )

            [4] => 
        )

)

Ubuntu Vm Images May 2026

virt-customize -a ubuntu.qcow2 --install prometheus-node-exporter virt-customize -a ubuntu.qcow2 --ssh-inject ubuntu:file:/home/me/key.pub This tool mounts the filesystem offline – significantly faster than booting. Even a perfect image can perform badly if the hypervisor configuration mismatches. 6.1 Disk I/O: Writeback vs. None Libvirt’s default cache mode for QCOW2 is writeback . This is dangerous: host crash = data loss in guest. Change to writethrough or none (if using persistent memory). To check:

: Never dd a cloud image directly to a block device without resizing partitions. Always use qemu-img resize followed by a boot that runs growpart and resize2fs . And always, always keep a serial console log. ubuntu vm images

<memoryBacking> <locked/> </memoryBacking> The serial console is your only lifeline. Common failures: virt-customize -a ubuntu

virsh dumpxml vm-name | grep "driver name" # Look for cache='none' or cache='writethrough' Ubuntu’s kernel sees vCPUs as separate cores. For NUMA-aware workloads (databases), pin vCPUs to physical cores: None Libvirt’s default cache mode for QCOW2 is writeback

: unattended-upgrades on first boot can cause race conditions with cloud-init and configuration management (Puppet, Ansible). Many production users disable it and rebuild images weekly. 5. Building Custom Images: The Modern Toolchain While downloading official images is common, enterprises need golden images with pre-installed agents (Datadog, CrowdStrike), custom kernels, or compliance tooling. 5.1 packer (HashiCorp) – The Industry Standard source "qemu" "ubuntu" iso_url = "https://releases.ubuntu.com/22.04/ubuntu-22.04-live-server-amd64.iso" http_directory = "http" boot_command = [ "<esc><wait>", "set autoinstall<wait>", "curl -s http:// .HTTPIP : .HTTPPort /user-data > /tmp/user-data<enter>" ] ssh_username = "ubuntu" qemu_binary = "/usr/bin/qemu-system-x86_64"

| Component | Desktop Default | Cloud Image Default | |-----------|----------------|----------------------| | Root password | Set by user | Locked ( * in shadow) | | SSH | Not installed | Installed and enabled | | Password auth | Allowed | Disabled (key-only) | | Firewall | None (ufw inactive) | None (cloud security groups handle isolation) | | Automatic updates | Unattended-upgrades off | Unattended-upgrades on (security updates only) | | Kernel livepatch | Off | Available via UA subscription |