René Koppe - xargon.de

xargon.de

Sign in Subscribe

René Koppe

Updating the Firmware on a Myricom NIC

So you bought a used 10G network card, probably for cheap because it's old, really obscure and information is sparse? Welcome to my world! This is a 10G network card designated 10G-PCIE-8B-S made by Myricom. It has one SFP+ slot, no module vendor lock-in and reasonable power usage. It seems

Proscend 190-T with Netcologne FTTB Part 3

A Netcologne technician punched down my connection to the ZTE box today and things worked out about half as good as I wished. The 190-T immediately synched up but for some reason the connection is capped at 500/100 instead of 1000/100. My ongoing theory is that although the

Proscend 190-T with Netcologne FTTB Part 2

Today I received the 190-T SFP module that I ordered. It took a bit longer than expected due to the module only being available from a small shop in Switzerland, which had two modules left in stock. Customs in Germany is horrible, so after a day of actual transport it

Proscend 190-T with Netcologne FTTB Part 1

Netcologne is currently offering up to 1Gbit/s with their FTTC/FFTB connections. In case of FTTB the installation consists of a Mini-DSLAM installed in the basement of the building. For some reason (most likely cost and standardization) all connections are made via G.fast - no matter the distance

Sourcing replacement pins for AM4 CPUs

Sourcing replacement pins for AM4 CPUs

CPUs in a PGA (Pin Grid Array) package are notorious for taking damage when being handled without proper care. CPUs with a heatspreader (e.g. AM4) tend to stick to the cooler while being removed, resulting in sudden movements when the CPU is forcibly being pulled out of the locked

M'key - getting started

Before creating or transferring your personal key there are some prerequisite steps you might have to complete. Linux Start by installing gpg using your distributions package manager. For Debian/Ubuntu you can use apt: # apt install gpgAfter that you can insert your M'key into any USB-Slot. If your key has

STM vserprog - a 1.8v/3.3v serial flash reader

STM vserprog - a 1.8v/3.3v serial flash reader

This programmer uses a modified version of the wonderful stm32-vserprog [https://github.com/dword1511/stm32-vserprog] firmware and is compatible with flashrom. * USB-C port * reads/writes serial flash memory via SPI * compatible with both 1.8v and 3.3v chips * voltage support can be modified with resistor dividers * compatible with the

M'key - a durable open source smartcard emulator

M'key - a durable open source smartcard emulator

Did you ever wish for a cheap, durable and secure way to store your GPG keys for signing and authentication? I sure did! So I made this: a USB dongle based on the GNUK open source project [http://www.fsij.org/doc-gnuk/] which emulates a smartcard reader via HID. Support