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The Bambu Lab X1C is widely regarded as one of the most capable prosumer 3D printers on the market. However, for users who require the specific networking and thermal capabilities of its enterprise-focused sibling, the X1E, there is a significant price jump. This post explores a hardware and firmware modification designed to bring the X1C closer to the “E” specification, starting with…
Exploring the Differences between current S1 and S1 Pro Pre-Release Firmware: An In-depth Analysis I recently deep dived into the firmware upgrade methods of FLSUNs most recent 3D printers, for developing a jailbreak to gain remote access as superuser. While researching I noticed the anouncement of a new flagship model. In this post I work out the differences between the firmware configurations of…
Introduction Installing up to 1MB of memory on the IBM PC XT motherboard is a relatively straightforward process, allowing for a maximum of 896KB of addressable storage. This upgrade involves replacing chips that IBM has conveniently positioned in sockets. In my case, I have acquired an old IBM 5155 Portable Personal Computer, which is in exceptional condition and fully functional. I want to…
Introduction The resulting model is a fine-tuned version of microsoft/swin-tiny-patch4-window7-224 on the imagefolder dataset. It achieves the following results on the evaluation set: Loss: 0.7695 Accuracy: 0.7275 The Microsoft Swin-Tiny Transformer used in this project is a deep learning model architecture designed for computer vision tasks. It is a smaller variant of the Swin Transformer family…
Introduction In the world of high-performance computing and deep learning, the NVIDIA DGX H100 emerges as a true titan, boasting a remarkable hardware ensemble designed to deliver unmatched performance. With 8 NVIDIA H100-GPUs, 18 NVLink connections per GPU, 4 NVIDIA NVSwitches, and 2 terabytes of RAM, this system is an ideal choice for intensive AI tasks. To utilize its GPUs, a crucial step…
Mellanox Card Type Speed Ports PCIE Variations MCX415A-CCAT EN 100GBE 1 QSFP28 3.0 x16 IBM EKAM, H3C 0631A012/0231A7PU/0231A7XR MCX416A-CCAT EN 100GBE 2 QSFP28 3.0 x16 IBM EC3L (Low Profile), IBM EC3M, Dell 540-BBQH, DELL 540-BBQF (Low Profile), DELL 540-BBVR (Low Profile), DELL 540-BBUU (Low Profile), H3C 9901A3SQ MCX311A-XCAT EN 10GBE 1 SFP+ 3.0 x8 Lenovo 00AE047 MCX312A-XCBT EN 10GBE 2 SFP+ 3.0…
Introduction Because of my fable for network technology and the wish to gather more in-depth knowledge on the OSS firewall solution OPNsense, I planned a multi-WAN setup. One of the upstream gateways should be of course a ZTE MC801A HyperBox 5G [ztedevices.com] router as a fallback connection. Specification Description Network NSA&SA (5G: n41/78/79/1/28) / (4G: B1/3/5/8/28/34/39/40) MIMO 5G+LTE:…
For a long time, in order to be able to pick up a parcel at the DHL Packstations, the PostNummer, which is embossed on a golden customer card, had to be typed in manually and, in a second step, an mTAN had to be entered. This procedure was to be simplified by a new yellow customer card with a barcode on the back. The customer scans his customer card and then enters his mTAN.
Installing Fedora on LG Gram Notebook The LG gram is a very powerful and at the same time incredibly light notebook. As a Linux user, I of course immediately installed Fedora on the laptop and had to realise, to my disillusionment, that one or two things do not run as smoothly as I had hoped. During charging via USB-C, several kernel tasks spawn that place a heavy load on the CPU.
Installing Tang on OPNsense First, install the following packages that are available in the OPNsense repo to avoid building them from source: pkg install gmake pkgconf ninja socat Get the ports tree opnsense-code ports cd /usr/ports I chose not to build manpages, after all, a2x is not required and it saves time by not pulling in all the asciidoc dependency chain, see:…
Factory Reset an AP96xx APC UPS Network Management Card As an new owner of an AP9631 APC UPS Network Management Card 2 (NMC), I recently discovered some hidden and undocumented reset procedure that can be useful in certain situations. I purchased the AP9631 NMC for my APC Smart-UPS 750 (SMT750I), but the manual did not provide clear instructions on how to factory reset the card without using a…
Introduction The Mobile Ident III (MI3) is a multi-biometric handheld fingerprint identification device developed by 3M Cogent, intended for use in military, law enforcement, and civil government applications. It is designed to facilitate remote subject identification, disaster scene management, ID document authentication, and traffic citation, among other uses. It was launched on the market in…
Introduction Since I always fully encrypt my drives for security reasons, I needed a solution to decrypt them in my home network in a secure way after a reboot. The background story was especially the automatic installation of system updates that require a reboot (e.g. for a new kernel version). This guide was created on a Fedora 37 system. Network Bound Disk Encryption Clevis and Tang encryption…
Since I run several ZFS pools and want to get a notification by the integrated daemon “zed” in case of an error, I had the idea to create an alias at my email provider mailbox.org and send these notifications to my private mailbox via this alias. First, we need to install the msmtp and s-nail packages. This is a very lightweight SMTP client and a mailx compatible mail processing system…
I encountered an issue upgrading a brand new GS1200-5 from firmware V2.00(ABKM.1)C0 to V2.00(ABKM.2)C0 using Firefox on a Linux system. The upgrade button triggered a rapid flashing of the switch port, but failed after a 30-second timer expired. Cancelling the upgrade would reboot the switch, but the UI remained stuck in firmware upgrade mode. Reset and power off/on did not change things. In the…
Introduction PIER™ (Portable Iris Enrollment and Recognition) is a rugged handheld device that uses the unique patterns and textures of the human iris to enroll and identify individuals. The PIER™ 2.3 can store a database of 100,000 individuals (both left and right eye) and quickly return the identity of the subject. When connected to a Network, the device can identify an individual compared to a…
Introduction Google Coral Dual EdgeTPU is a Mini PCIE card with two built-in Edge Tensor Processing Units (EdgeTPUs) which provide high performance ML inferencing on a low-power ASIC. Why would I need an adapter for a Dual Edge TPU? Coral Dual Edge TPU is one card with two identical TPU cores. Each core has it’s own PCIe interface and motherboard shall have two PCIe busses on m.2 slot to…
How to make a dump stereo system smart? I have connected my stereo system to a Hue smart plug to be able to turn it on or off remotely when needed. Music is played via a Raspberry Pi with Raspotify. The smart plug is useful and convenient to save power in case I fall asleep at night listening to an audio book. This problem can be solved with a simple timer.
Introduction Since my keyboard and mouse are paired to my computer via Bluetooth and I always encrypt my hard drives with LUKS2, I ran into a chicken egg problem. At this early boot stage, the entire Bluetooth stack is not yet responsive. As a result, I can’t enter my password. The simplest solution is a wired keyboard, but then I would have multiple keyboards on the table and thus less…
Introduction The Huawei E3372 is a popular and quite cheap 4G LTE stick. The on-board LTE Cat 4 modem supports up to 150 MBit/s in download and up to 50 MBit/s in upload. It has a fallback on (DC-)HSPA(+), UMTS and EDGE when needed. The whole package is rounded off by small handy dimensions (88m x 28mm x 11.5mm). But as usual there is a footgun on purchasing the E3372 for your desired use case:
This script checks if the FRITZ!Box has a valid ssl certificate and renews it with certbot if necessary. In order to upload the certificate to the FRITZ!Box, a separate user must be created in the webinterface beforehand. It makes sense to call the script regularly (e.g. every 7 days) by a cronjob. A further development could be the dispatch of a mail when the certificate is renewed. #!/bin/bash #…
Introduction There are some barcode scanner apps offered on the app stores, which are designed to quickly and easily obtain important product properties of food, cosmetics, etc. while shopping. A well-known app in the German-speaking countries is “barcoo”. Since I wanted to have a fixed scanner for my refrigerator, which recognizes the EAN of the product and stores the product in a…
Welcome to my list of search engines for IT security researchers! As a security researcher, you know how important it is to stay up-to-date with the latest threats, vulnerabilities, and trends in the field. And one of the best ways to do that is by using specialized search engines that are designed specifically for the IT security community. This list includes some of the most popular and useful…
What are ATLAS and KSSU standards? There are different unit standards in aviation industry. The currently most widely used is the ATLAS standard. It’s name comes from the European Airline Alliance, which has agreed in the 1960s on a uniform standard for their aircraft components, maintenance processes, operational planning and training programs. The founding members of the ATLAS standard…
Introduction The AUDI e-scooter is based on the Segway Ninebot MAX G30D II. Aim of this little project is to add a GPS tracker with immobilizer function into my new scooter. The GPS tracker should be used to deactivate the e-scooter via SMS or app when it’s not in use. For this purpose, a relay is installed that interrupts the power supply to the dashboard panel. The clever thing about our…
Introduction The Mini B signal connector series is an overmolded connector used by many e-mobility manufacturers for various throttle, e-brake, PAS sensor and light connectors. Compatible versions of this connector are made among others by Julet, HIGO and Cusmade. These connectors are not available as solderable inline connectors that anyone can install. They come as prefabricated harnesses in the…
I have been looking for an ESP8266 board that has voltage converters like a NodeMCU but is much smaller and space saving. Background is my current project “fridge-kola” to control a wine fridge as an IoT device via my smart home and to read out its state. The TTGO board with integrated OLED display is perfect for my requirements. It has exactly the right size to be placed in the handle…
This tool is designed to help users understand and compare the different types of redundant array of independent disks (RAID) levels and their features. By using this calculator, you can quickly and easily determine which RAID level is best suited to your needs based on factors such as data storage capacity, performance, and fault tolerance. RAID is a technology that combines multiple physical…
internet.telekom Standard APN for data traffic in all access networks with shared IP (2G/3G/LTE). internet.v6.telekom Standard APN for data traffic in all access networks with IPv6 (2G/3G/LTE). internet.t-mobile Standard APN for Internet access with shared IP (2G/3G/now also for LTE). internet.t-d1.de You can use this APN if there are problems with applications not supporting NAT type 3 on…
Pimp my fridge! I have owned a Russell Hobbs RH8WC1 wine cooler for several years. Since I’m not a wine drinker, the fridge serves as a quickly accessible depot for all kinds of drinks next to my desk. But I often use it to store fritz-kola, a German soft drink brand that adds a lot of caffeine to its cola. That is where the name of the project comes from: fridge-kola
For devices without controls on the chassis (i.e. with the new Loewe-Eye), open the system settings and go to Extras. Enter the number sequence 756393 there. The number sequence stands for S(ervicemenu)LOEWE 😉 Note: No input field appears for this!
Chassis HDMI 1 HDMI 2 HDMI 3 HDMI 4 SL51x OLED UHD@60Hz HDR/ARC/DV UHD@60Hz HDR/DV UHD@60Hz HDR/DV UHD@60Hz HDR/DV SL4xx OLED UHD@60Hz HDR¹/ARC UHD@60Hz HDR¹ UHD@60Hz UHD@60Hz HDR/DV SL4xx LCD UHD@60Hz HDR¹/ARC UHD@60Hz HDR¹ UHD@60Hz UHD@60Hz SL3xx UHD@30Hz ARC UHD@30Hz UHD@30Hz UHD@60Hz ¹with UHD and HDR at the same time (with at least 4:2:2 chroma subsampling), the maximum possible frame rate…
Take down the paywall! I like to read the local news in the morning to find out what’s going on in my hometown right now. Besides the public announcements of the local authorities and utilities, there is a lot of news that is difficult or impossible to find on the public websites of the respective party. Unfortunately, this information is often hidden behind a paywall tied to a subscription,…