Use Kea DHCP server as ISC DHCP server (dhcpd) is being phased out

KEA DHCP server

The ISC DHCP server (dhcpd) was traditionally used to set up a DHCP server in Linux, but the software is reaching end-of-life, and the Internet Systems Consortium is now recommending their own Kea DHCP server or alternatives such as Dnsmasq or udhcpd (as found in Busybox) as a replacement. I was unaware of this having just used the isc-dhcp-server package to set up a DHCP server in NanoPi R6C router/mini PC earlier this month. But a blog post on Ubuntu informed us dhcpd was going away, and Canonical plans to switch over the Kea DHCP server instead. The main difference from the user perspective is that Kea relies on JSON configuration files so all your dhcpd files will have to be rewritten. Other highlights for the Kea DHCP server include: Modular component design, extensible with hooks modules. Kea includes daemons for a DHCPv4 server, a DHCPv6 server, and a dynamic […]

ADLINK Ampere Altra Dev Kit features ATX motherboard with 32 to 80-core Arm COM-HPC CPU module

Ampere Altra Dev Kit AADK

ADLINK Ampere Altra Dev Kit is an “IoT prototyping kit” based on an ATX motherboard fitted with a COM-HPC-ALT Server Type Size E module powered by an Ampere Altra 32, 64, or 80-core Arm Neoverse N1 server processor, and supporting up to 768GB DDR4 memory. It’s basically the same hardware as found in the Ampere Altra Developer Platform (AADP), but without the tower and power supply, nor optional features like liquid cooling or 10GbE interfaces. Ampere Altra Dev Kit (AADK) specifications and content: Computer-on-Module – COM-HPC Server Type Size E Ampere Altra module with Ampere Altra 32 to 80-core 64-bit Arm Neoverse N1 processor up to 1.7/2.2/2.6 GHz (32/64/80 cores, TPD: 60W to 175W), up to 768 DDR4 ECC memory Mainboard – COM-HPC Server Base carrier board Storage – 2x M.2 slot for NVMe SSD Video – VGA port Audio – 3.5mm audio jack Networking – 1x Gigabit Ethernet Expansion […]

How to setup a WireGuard server on Ubuntu for remote login

WireGuard Server Network Topology

In this article, we will show you how to set up a WireGuard server on Ubuntu in order to use it for remote login. Introduction to WireGuard First of all, let’s first understand, what is WireGuard? WireGuard is a very simple and fast VPN tool with state-of-the-art encryption. Its goal is to be faster, simpler, more streamlined, and easy to use than IPsec, while avoiding the hassle of large-scale configuration. WireGuard is designed as a general-purpose VPN to run on embedded interfaces and supercomputers in many different environments. Originally released for the Linux kernel, WireGuard is now widely deployed and supported across platforms (Windows, macOS, BSD, iOS, Android). WireGuard is growing rapidly and is already considered the most secure, easiest-to-use, and simplest VPN solution in the industry. Basic Concepts of WireGuard Several basic concepts are involved in WireGuard: Peer: A node in WireGuard. Private key: Each node has its own […]

Install a server in your house, get free hot water!

server hot water cylinder

Heata, which began as an innovation project with British Gas, is a UK company that connects a server to your hot water cylinder and provides hot water to the house master for free up to 4.8 kWh per day, and at least 2.5 kWh as per contractual obligations. Companies spend millions of dollars to cool the servers hosted in their data centers and most of that heat is completely wasted. So Heata decided to create a win-win solution that lowers their cooling cost and provides free hot water to whoever has their server installed in their house. The installation process is said to be tested and approved by British Gas so you don’t lose your hot water cylinder warranty, and the heat transfer mechanism is patented as well under the UK patent GB2576035. A technician would come to cut the insulation and attach a thermal bridge to the cylinder. The […]

Rockchip RK3588S industrial mini PC features CAN Bus, RS485 & RS232 interfaces, relay, and more

Firefly EC-RK3588SPC

Firefly EC-R3588SPC industrial mini PC is based on the Rockchip RK3588S octa-core Cortex-A76/A55 processor and offers various interfaces used in industrial settings such as RS485 and RS232 serial interfaces, a CAN Bus, a relay, and digital input. The system is offered with up to 32GB RAM and 128GB eMMC flash, supports M.2 NVMe or SATA storage, as well as Gigabit Ethernet, Fast Ethernet, WiFi 4, Bluetooth 5.0, and 4G LTE cellular connectivity. You’ll also find 8K-capable HDMI and DisplayPort (USB-C) video outputs, some USB ports, and a 3.5mm audio jack. Firefly EC-R3588SPC specifications: SoC – Rockchip RK3588S octa-core processor with CPU – 4x Cortex-A76 cores @ up to 2.4 GHz, four Cortex-A55 cores @ up to 1.8 GHz GPU – Arm Mali-G610 MP4 quad-core GPU with OpenGL ES3.2 / OpenCL 2.2 / Vulkan1.1 support AI accelerator – 6 TOPS NPU VPU – 8Kp60 H.265/VP9/AVS2 video decoder, 4Kp60 AV1 decoder, 8Kp30 […]

DeskPi Super6C mini-ITX board takes up to 6x Raspberry Pi CM4 modules

Mini-ITX cluster board 6x Raspberry Pi CM4

You may remember the Turing Pi 2 mini-ITX cluster board that supports up to four Raspberry Pi CM4 modules. It now has some competition with the DeskPi Super6C board, still based on the mini-ITX form factor, and taking up to six Raspberry Pi CM4 modules. The Super6C offers a much slimmer design since the modules are inserted horizontally instead of vertically, plus each module comes with its own M.2 NVMe SSD socket besides a microSD card slot. The board also features two Gigabit Ethernet ports and two HDMI outputs, as well as four USB 2.0 ports. DeskPi Super6C specifications: SoM – 6x sockets for up Raspberry Pi Compute Module 4 Storage 6x M.2 PCIe Gen2 x1 2280 sockets, one per CM4 module 6x MicroSD card slots, one per CM4 module Video Output – 1x HDMI 2.0 output, 1x HDMI 1.4a output, both attached to the first Raspberry Pi CM4 module […]

Turing Pi 2 mini-ITX cluster board supports RK3588 based Turing RK1, Raspberry Pi CM4, and NVIDIA Jetson SoMs (Crowdfunding)

Turing Pi 2

We first covered the Turing Pi V2 mini-ITX cluster board supporting up to four Raspberry Pi CM4 or NVIDIA Jetson SO-DIMM system-on-module in August 2021. The company has now launched the Turing Pi 2 on Kickstarter with a little surprise: the Turing RK1 module with Rockchip RK3588 Cortex-A76/A55 processor and up to 32GB RAM. The board allows you to mix and match modules (e.g. 3x RPi CM4 + 1x Jetson module as on the photo below), and with SATA ports, Gigabit Ethernet networking, USB 3.0 ports, mPCIe socket, you could build a fairly powerful homelab, learn Kubernetes, or self-host your own apps. Turing Pi 2 specifications: SoM interface – 4x 260-pin SO-DIMM slots for up to four Raspberry Pi CM4 with Broadcom quad-core Cortex-A72 processor, up to 8GB RAM, up to 32GB eMMC flash (adapter needed) NVIDIA Jetson Nano/TX2 NX/Xavier NX SO-DIMM system-on-modules with up to 6x Armv8 cores, and […]

reServer Jetson-50-1-H4 is an AI Edge server powered by NVIDIA Jetson AGX Orin 64GB

Jetson AGX Orin 64GB AI inference server

reServer Jetson-50-1-H4 is an AI inference edge server powered by Jetson AGX Orin 64GB with up to 275 TOPS of AI performance, and based on the same form factor as Seeed Studio’s reServer 2-bay multimedia NAS introduced last year with an Intel Core Tiger Lake single board computer. The 12-core Arm server comes with 32GB LPDDR5, a 256GB NVMe SSD pre-loaded with the Jetpack SDK and the open-source Triton Inference server, two SATA bays for 2.5-inch and 3.5-inch drives, up to 10 Gbps Ethernet, dual 8K video output via HDMI and DisplayPort, USB 3.2 ports, and more. reServer Jetson-50-1-H4 (preliminary) specifications: SoM – Jetson AGX Orin module with CPU – 12-core Arm Cortex-A78AE v8.2 64-bit processor with 3MB L2 + 6MB L3 cache GPU / AI accelerators NVIDIA Ampere architecture with 2048 NVIDIA CUDA cores and 64 Tensor Cores @ 1.3 GHz DL Accelerator – 2x NVDLA v2.0 Vision Accelerator […]

EDATEC Raspberry Pi 5 fanless case