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Manage instance

Here is how to manage instances in the Bare Metal Server service.

View instance list​

You can view a list of running instances along with basic instance information.

  1. Go to the KakaoCloud Console > Beyond compute service > Bare metal server menu.

  2. In the Instance menu, check the list of currently created instances.

    Image Instance menu

    FieldDescription
    NameName assigned by the user
    IDUnique ID (UUID) of the instance
    StatusCurrent status of the instance
    - For details, see Instance lifecycle
    TypeServer type of the instance
    ImageInstalled image on the instance
    Primary private IPPrivate IP address assigned to the instance’s primary network interface
    Primary public IPPublic IP address attached to the instance’s primary network interface
    Availability zoneAvailability zone where the instance is located
    Creation dateCreation timestamp of the instance
    MoreExecute additional actions per item
    - See More features for details

More features​

You can click the [More] icon on an instance to access various management actions.

  1. Go to the KakaoCloud Console > Beyond compute service > Bare metal server menu.

  2. In the Instance menu, click the [More] icon on the instance you want to manage.

    Image More features

    ActionDescription
    StartStart an instance that is currently in the Stopped state
    StopTemporarily stop the instance
    - Billing continues
    RestartReboot the instance by stopping its running processes
    - May fail if processes don’t terminate properly
    Force restartForcefully power off and reboot the instance
    DeleteTerminate and release the instance
    RenameEdit instance name and description
    RebuildRebuild the instance with a new OS and key pair
    Associate public IPAttach a public IP to the network interface of the instance
    - Project admin only
    Disassociate public IPDetach the public IP from the instance's network interface
    - Project admin only
    SSH connectConnect to the instance via SSH
    - Only for Linux-based instances
    - See Connect to Linux instance with SSH for details
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When changing the instance state via command line, note the following:

  • If you shut down the instance from the OS, it will automatically reboot.
  • To stop the server completely, use the console.

View instance details​

You can check detailed instance information, network connections, and monitoring data.

  1. Go to the KakaoCloud Console > Beyond compute service > Bare metal server menu.
  2. In the Instance menu, select the instance you want to view.
  3. Review the details on the instance detail page.
FieldDescription
Instance nameName assigned by the user
Instance IDUnique ID (UUID) of the instance
Instance statusCurrent status of the instance
Availability zoneAvailability zone of the instance
HostnameAutomatically generated hostname based on private IP
- Formatted as host-{PRIVATE_IP}
Instance typeInstance type selected at creation
ImageName of the image used
vCPUNumber of CPUs according to instance type
Key pairKey pair associated with the instance
MemoryMemory size according to instance type
CreatorUser who created the instance
VolumeDisk capacity assigned to the instance
Creation timeTime and date the instance was created (elapsed time since creation)

Hard reboot instance​

You can forcefully reboot an instance.
This operation is equivalent to a system reboot. It typically takes 10–15 minutes, and existing configurations such as public/private IP addresses, public DNS, and data volumes remain unchanged.
Note that forcibly rebooting an instance does not reset its billing period.

  1. Go to the KakaoCloud Console > Beyond compute service > Bare metal server menu.

  2. In the Instance menu, click [More] > Force reboot on the instance you want to restart.

    Force reboot

  3. In the Force reboot instance pop-up, review the instance details and click [Confirm].

Delete instance​

You can delete instances that are no longer in use.

caution

Deleted instance resources are permanently released and cannot be recovered.

  1. Go to the KakaoCloud Console > Beyond compute service > Bare metal server menu.
  2. In the Instance menu, click [More] > Delete instance on the instance you want to remove.
  3. In the pop-up, enter the instance name and click [Delete].

Set time reference​

Accurate and consistent time settings are important for multi-server operations and processes.
Images provided by KakaoCloud come preconfigured with time synchronization services such as Network Time Protocol (NTP), Chrony, and systemd-timesyncd. These services ensure all servers work from the same time reference. However, they require internet access.
For local network environments, KakaoCloud offers its own NTP service. On Linux systems, you can use Chrony to sync time with KakaoCloud’s NTP server.

info
  • KakaoCloud's time synchronization service is available via IPv4 address 169.254.169.123.

  1. Install the Chrony package.

    sudo yum install chrony

  2. Open /etc/chrony.conf and add the following line:

    server 169.254.169.123 prefer iburst minpoll 4 maxpoll 4

  3. Restart the Chrony daemon:

    sudo service chronyd restart

  4. Enable Chrony to start on boot:

    sudo chkconfig chronyd on

  5. Confirm that time is synced to 169.254.169.123:

    chronyc sources

  6. Check Chrony tracking status:

    chronyc tracking