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Posted on 2025-2-25 09:10:20
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Requirements: Remotely manage the family's computer, be able to remotely boot the computer, view the screen, enter BIOS settings, and remotely reinstall the system.
Review:
KVM
KVM, short for Keyboard Video Mouse, enables access and control of computers by connecting directly to a keyboard, video, or mouse (KVM) port. KVM technology does not require the target server to modify the software. This means that the target computer can be accessed at any time in the BIOS environment. KVM provides true board-level access and supports multi-platform servers and serial devices. KVM technology has evolved from the initial basic SOHO office type to the enterprise IT infrastructure facility management system.
IP-KVM
KVM OVER IP can capture analog signals from the interfaces of computer keyboards, monitors, and mice, and digitally convert these analog signals into digital information packets, which are encrypted and compressed, and securely transmitted using TCP/IP connections in the network, so as to realize remote control of computer equipment.
IP-KVM is a technology based on a certain hardware scheme, using IP network to transmit keyboard, video, mouse information, to achieve remote full access to control all the resources of the computer or server, and the feeling of using the computer is completely the same as using the computer locally. By converting KVM interface signals from remote computers or servers into a form that can be transmitted over a network, IP-KVM provides the flexibility to control the target system from any location.
Manage cards remotely
A Remote Management Card (RMC) is an important component in servers used to remotely manage and monitor hardware status. They offer a variety of features that enable administrators to remotely access and control servers over the network without the need for physical contact with the device. Here are the key features of the remote management card:
1. Remote KVM (Keyboard, Video, Mouse)
Virtual KVM: Allows administrators to remotely connect to the server's keyboard, video, and mouse interfaces over the network, enabling full control over the server, including BIOS/UEFI level operations.
Virtual media support: You can mount ISO images or virtual disks over the network for operating system installation, patch updates, and other operations.
2. Power management
Remote power control: Power operations can be performed remotely, such as power on, shutdown, restart, forced power off, etc.
Power Status Monitoring: Monitor the power status of the server in real time to ensure that the server is running in the expected state.
3. Hardware health monitoring
Temperature Monitoring: Real-time monitoring of the server's internal temperature to prevent hardware damage caused by overheating.
Fan speed monitoring: Monitor fan speed to ensure the cooling system is working properly.
Hard drive status monitoring: Monitor the health status of hard drives through S.M.A.R.T. technology to warn of potential failures in advance.
Power supply monitoring: Monitor the status of the power module to ensure stable power supply.
4. Logging and alarming
System Event Logs: Log hardware and software events for your server, helping administrators analyze the root cause of the problem.
Alarm notification: When an abnormal situation is detected, send an alarm notification via email, SMS, or other means to ensure timely response by administrators.
5. Firmware and driver updates
Remote Firmware Updates: Allows administrators to remotely update the server's BIOS, BMC (Baseboard Management Controller), drivers, and other firmware over the network, reducing downtime.
Batch update: Supports batch updating of firmware for multiple servers to improve management efficiency.
6. Virtualization support
Virtual Console: Provides a browser-based virtual console, allowing administrators to manage the server remotely through a web interface.
Virtual Media Mounting: Supports network mounting of virtual media, such as ISO files or virtual disks, for system installation or maintenance.
7. Security
User permission management: Support multi-user login and assign different permissions to different users, ensuring that only authorized personnel can perform sensitive operations.
Encrypted Communications: Secures remote management communications using SSL/TLS encryption protocols to prevent data breaches.
Two-Factor Authentication: Supports two-factor authentication (2FA) to enhance login security.
8. Automation and scripting support
API and CLI Support: Provides APIs and command-line interfaces (CLIs) that allow administrators to write scripts to automate common administrative tasks.
Integration Tools: Supports integration with other management tools (such as vCenter, SCOM, Nagios, etc.) for centralized management.
9. Out-of-band management
Independent network interface: Remote management cards are usually equipped with independent network interfaces, which administrators can manage even if the server operating system crashes or fails to boot.
Out-of-band access: Even if the server is offline or has no operating system, administrators can still access and control the server through out-of-band management features.
10. Performance monitoring
Resource Utilization Monitoring: Monitors CPU, memory, storage, and network usage to help administrators optimize server performance.
Historical Data Analysis: Provides analytical reports with historical performance data to help identify performance bottlenecks and trends.
For enterprise servers, there is usually a remote card (KVM is just an essential feature of a remote card), or optional, commonly used brand servers and names are as follows:
| brand | name | | DELL | iDRAC（Integrated Dell Remote Access Controller） | | HP | iLO（Integrated Lights-Out） | | association | XCC（XClarity Controller） |
One-KVM
One-KVM is a BIOS-level remote control project based on inexpensive computer hardware and PiKVM software secondary development. It can realize remote management of servers or workstations, without installing software to adjust settings on the controlled machine, to achieve intrusive control, and has a wide range of applications.Default account: admin, password: admin。
Working with the documentation:The hyperlink login is visible.
Demo website:The hyperlink login is visible.
Source:The hyperlink login is visible.
The hardware that has been adapted is as follows:
Integration package adaptation overview |
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| | Firmware model | Firmware code | Hardware situation | The latest version | The player said | Onecloud | USB capture card, OTG | 241018 | Private cloud is the second generation | Cumebox2 | USB capture card, OTG | 241004 | Vmare | Vmare-uefi | USB capture card, CH9329 | 241004 | Virtualbox | Virtualbox-uefi | USB capture card, CH9329 | 241004 | S905L3A Universal Package | E900v22c | USB capture card, OTG | 241004 | My family said | Chainedbox | USB capture card, OTG | 241004 | Loongson Jiujiu faction | 2k0300 | USB capture card, CH9329 | 241025 |
I purchased a One-KVM device based on Wanke Cloud from the seafood market, as shown in the figure below:
PiKVM
PiKVM is a feature-rich, production-grade, open-source, Raspberry Pi-based KVM over IP appliance. It helps you manage your server or workstation remotely, regardless of the status of the operating system or whether it is installed or not. PiKVM allows you to turn on/off or restart your computer, configure UEFI/BIOS, reinstall the operating system using a virtual CD-ROM or flash drive, and more! Everything works as if you were working directly on a remote system. This is true hardware-level access that doesn't rely on any remote ports, protocols, or services!
Official Website:The hyperlink login is visible.
Source:The hyperlink login is visible.
Purchase link:The hyperlink login is visible.
Equipment:
BLIKVM
BLIKVM is an open-source software KVM professional device, currently available in 4 versions, v1 CM4, v2 PCIe, v3 HAT, v4 Allwinner. The device is designed to help users remotely manage servers, workstations, or personal PCs through the control device's HDMI screen and mouse and keyboard. Regardless of whether the target device's operating system is running normally or not, BLIKVM can solve all problems on the target device. For example, configure the BIOS system and reinstall the operating system for the target device by using a remote CD-ROM or flash drive. Unlike software-based remote management, you don't need to install any software on the controlled computer, allowing for intrusive control.
Official Website:The hyperlink login is visible.
Source:The hyperlink login is visible.
The equipment is as follows:
Interface:
NanoKVM
Lichee NanoKVM is an IP-KVM product based on LicheeRV Nano, inheriting the ultra-small size and powerful features of LicheeRV Nano. Lichee NanoKVM is available in two versions: NanoKVM Lite is the basic configuration, suitable for individual users with some DIY capabilities and enterprise users with bulk needs. NanoKVM Full is a complete version, with a well-developed shell, complete accessories, and a built-in system image card, which is recommended for individual users.
Official Website:The hyperlink login is visible.
Source:The hyperlink login is visible.
Equipment:
You can see that this device is even more compact.
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