Radio for Everyone
- FM Audio Transmitters - Portables and Car Hands-FreeFM Audio Transmitters - Portables and Car Hands-FreeI'm using FM transmitters for years, both portables and vehicle versions, and pretty much used the majority of types on the market, so here's how they work and which ones I recommend.How FM transmitters work?Output audio from a device via FM transmission standard: you set a frequency on […]
- Review: Nooelec Rattlesnake 3-antenna kitThree antennas with magnetic mount and coax for $16:Review and observations are based on over half a year's use, summary: order from manufacturer, Amazon USA, or eBay right away. Rattlesnake kit is the best value aftermarket antenna package I ever came across. Period.Direct competitor on price ($15 on Amazon) is rtl-sdr.com's antenna kit, separate review here.First impressionsHeavy, feels good when opening the envelope:M5: Screw standard referring to […]
- Portable Bluetooth Audio Signal ReceiversReceive an audio signal up to 50 feet / 15 meters - best replacement for wires, also work as hands-free in a vehicle. Hands-on guide and five units tested and compared: cheap from China, for Hi-Fi, and midrange and expensive hands-free. Regardless of locale and prices, these four types cover most flavors on the market.What […]
- Maximum USB cable lengthQuestion often comes up, Answer: 27 feet / 9 meters with RTL-SDR dongles:For testing, I tried four separate RTL-SDR dongles in image above: rtl-sdr.com v3, Nooelec Mini 2, Nooelec E4000 SMArtee and regular Nooelec SMArt.USB connector cable is crucial, as mentioned in a previous post detailing stuff I'm happy with, blue 5 feet / 1.5 m […]
- RTL-SDR Dongles Image GalleryStudio Photos of over 20 RTL-SDR dongles on the market:More than 200 high-resolutions PCB, case and comparison images by clicking here.
Run my experiment on GENI
- Multicast routing with PIMIn this experiment, we will see how multicast routing protocols build a distribution tree between one or more multicast receivers and sources. It should take about 60-90 minutes to run this experiment. To reproduce this experiment on GENI, you will need an account on the GENI Portal, and you will
- A peek into Internet routingIn this experiment, we will see how traffic traverses the Internet across different autonomous systems. We'll use traceroute to sample some Internet paths. Then, we'll try to find clues about the routers along the path from the router hostnames. We'll also examine how traffic moves from one autonomous system to
- Experimental evaluation of the impact of Tor latency on web browsingTor is an anonymity network that is used by privacy-conscious users around the world to browse the web anonymously. However, routing web traffic through the Tor network also adds extra latency to each packet. In this experiment, we will set up a private Tor network, with complete control over network
Crazy Danish Hacker
- Downloading images from the SPACE STATION with a 22$ USB radioIn this video I demonstrate how to configure a cheap software defined radio to pick up radio transmissions from the international space station!
- Stack-Based Overflows – Getting a Metasploit ShellIn this video I show how to finish recreating the popular SLMail exploit!
- Stack-Based Overflows – Controlling Execution FlowIn this video I show how to recreate the popular SLMail exploit from scratch!
Blog – Hackaday
- Building a Stump Grinder from the Ground UpFelling a tree properly is a skill that takes some practice to master, especially without causing any injuries or property damage. Getting the tree cut down though is sometimes only …read more
- See This Hybrid Approach to Folded 3D Printed Mechanisms3D printers are quite common nowadays, but we’re still far from exhausting new ideas to try with them. [Angus] of [Maker’s Muse] recently got interested in 3D printing small mechanical …read more
- Keebin’ with Kristina: the one with the Mad Model MHand-Wired Hell Help Do you dream of building a curvy ergonomic keyboard or macro pad, even though the idea of hand wiring gives you nightmares? You can make it a …read more
ZeroSec – Adventures In Information Security
- Some of the [Many] Problems with Security SkillsSome of the problems with Security/Infosec/Insert whatever you want to call this industry here and the discussion around skills shortage plus realisation that the expectation vs reality on both sides of the fence needs to be reaffirmed.
- Ford Focus RS (Potentially For Sale)Thinking about selling my Mk3 Focus RS in Nitrous Blue, the spec sheet and modifications are listed below, get in touch on twitter if you're interested @ZephrFish.Focus RS MK3 2016 NB (Black wrapped roof)Painted Brake CallipersRecaro Shell Bucket SeatsReversing CameraRear Privacy GlassSYNC3
- Locking Down SSH - The Right WayA little guide for locking down a VPS or similar to ensure your SSH connection is as secure as can be.
Genesys Guru Blog
- Genesys Integration on The Wire (IOTW)Following on from a previous post on Genesys Management 2.0 here I’ve been doing some additional work on integrating Genesys environments with Elasticsearch. The result is what I call Genesys Integration on The Wire (IOTW). Integration on The Wire (IOTW) is a technology which enables system level integration based on a “zero touch” […]
- Genesys Management 2.0Hi – I’m back! Unfortunately, due to client confidentiality I’ve not been able to blog about Genesys work projects for a few years. Let’s change that .. This post is about something I have been looking at for several years in the form of a shelved project which gets events from Genesys components via the […]
- 2016 Xmas Light show using Raspberry Pi ControllerEnjoy!
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- Enabling Hibernation in Ubuntu 20.04 LTS using a Swap FileEnabling of the hibernation option on Ubuntu 20.04 LTS didn't work in the way I used to do. So, I had to explore further and do it slightly differently. This blog post records those things I did to get hibernation option working.1. First of all, create a swap file using the following commands.sudo fallocate -l […]
- Encrypting Files Using GnuPGThis post shows how to use GnuPG to encrypt and decrypt files on a Linux environment.1. If you haven't created your GnuPG key pair yet, you can use the following commands to create them and view their details.Create a pair of GnuPG keys using the following command.gpg --gen-keyThe keys and their relevant information are stored […]
- Sending Secure Emails with OpenPGPUse of encryption in our electronic communication is essential to protect our security and privacy. Here's how we can use OpenPGP standard to send and receive emails securly. While there are many software tools to get this done, I prefer this way.1. Create a pair of GNU Pritty Good Privacy (PGP) keys using the following […]
AMSAT-UK
- ISS SSTV Aug 6-7 145.800 MHz FMRussian cosmonauts on the International Space Station (ISS) are planning to transmit Slow Scan TV images on 145.800 MHz FM using the SSTV mode PD-120. The transmissions are part of the Moscow Aviation Institute SSTV experiment (MAI-75) and will be … Continue reading →
- 23cm band: Amateur radio coexistence with Sat-NavThe Chair of IARU Region 1 Spectrum Affairs, Barry Lewis G4SJH, reports on the meeting of the ITU-R Working Party 4C (WP4C) July 5-13 which discussed the amateur radio 1240 MHz band. On the IARU-R1 site he writes: During the … Continue reading →
- AO-109 transponder available for use by efficient modes like FT4/CWAMSAT has announced the transponder on the amateur satellite AO-109 (Fox-1E) is available for use by efficient modes such as FT4 or CW. A statement on the AMSAT website says: The AMSAT Engineering and Operations Teams are pleased to announce … Continue reading →
Gough's Tech Zone
- SGJPHK2017 Tokyo Pt 3: Ueno Park, Zojoji Temple, Kyu Shiba & Hamarikyu GardensI’d have to say, all hope of our COVID-19 lockdown easing are completely dashed as numbers continue to hold stable or rise subtly, and the outbreak is officially declared a “national emergency”. The premier’s “best health advice” led us down … Continue reading →
- SGJPHK2017 Tokyo Pt 2: Akasaka Palace, Imperial Palace & GardensApologies – I’ve been so busy and mentally exhausted that I started this post last week, but didn’t finish it off until now … Rather disappointingly, but to no great surprise to me, our COVID-19 Delta-strain-induced lockdown has persisted and … Continue reading →
- SGJPHK2017 Tokyo Pt 1: Around the Hotel & Looking for ViewsIt’s the second week of a lockdown in Sydney which was supposed to be a short one, but owing to the virulence of the Delta strain, our limited vaccination numbers, the lateness and laxness of the lockdown and the selfish … Continue reading →
Compass Security Blog
- Security Best Practices for On-Premise EnvironmentsDue to recent developments we figured it would be great to contribute a cheat sheet and create security best-practices on how to tie down a Microsoft on-prem environment. Our work mostly relies on MS recommendations. However, we put some effort to really condense it to the essence. We hope to see this applied everywhere and […]
- Printer Tricks Episode II – Attack of the ClonesWe show how to decrypt passwords from the configuration backup of a Xerox WorkCentre and how, during the reverse engineering, a command injection vulnerability was discovered (CVE-2021-27508).
- Straightforward Mobile ForensicsWe put more and more sensitive data on mobile devices. For many private conversations we use mobile applications, such as WhatsApp. This smooth access to the data and the Internet provides multiple benefits in our lives. On the other side, new attack vectors are created. Phishing messages do not need to be delivered in an […]
0xicf
- ClearEnergy ransomware can destroy process automation logics in critical infrastructure, SCADA and industrial control systems.Schneider Electric, Allen-Bradley, General Electric (GE) and more vendors are vulnerable to ClearEnergy ransomware. Researchers at CRITIFENCE® Critical Infrastructure and SCADA/ICS Cyber Threats Research Group have demonstrated this week a new proof of concept ransomware attack aiming to erase (clear) the ladder logic diagram in Programmable Logic Controllers (PLCs). The ransomware a.k.a ClearEnergy affects a massive […]
- Flaws in Samsung’s ‘Smart’ Home Let Hackers Unlock Doors and Set Off Fire AlarmsA smoke detector that sends you a text alert when your house is on fire seems like a good idea. An internet-connected door lock with a PIN that can be programmed from your smartphone sounds convenient, too. But when a piece of malware can trigger that fire alarm at four in the morning or […]
- Waze | Another way to track your movesMillions of drivers use Waze, a Google-owned navigation app, to find the best, fastest route from point A to point B. And according to a new study, all of those people run the risk of having their movements tracked by hackers. Researchers at the University of California-Santa Barbara recently discovered a Waze vulnerability that allowed […]
Nick Whyte
- 100 Warm Tunas 2018 Prediction AnalysisOver the space of 6 weeks, 100 Warm Tunas collected a large sum of data and chugged away at it to make some predictions about what the Hottest 100 of 2018 would look like. In summary, We collected 6,234 entries (13.6% decrease since 2017 🔻). We tallied 58,463 votes across these entries (12.9% decrease since […]
- 100 Warm Tunas has a new home!100 Warm Tunas has found a new home this year! This year’s results, along with the past 2 years can now be found at 100warmtunas.com. The existing domain (100-warm-tunas.nickwhyte.com) will simply perform a 301 permanent redirect to the new domain, so all existing inbound links should be unaffected.
- 100 Warm Tunas 2017 Prediction Analysis🔥💯 🔥💯 Over the space of 6 weeks, 100 Warm Tunas collected a large sum of data and chugged away at it to make some predictions about what the Hottest 100 of 2017 would look like. Along the way we encountered a bug in the collection process, however data was backfilled and showed that I […]
owenduffy.net
- CirroMazzoni Baby small transmitting loop – a desk studyThis article is a desk study of the CirroMazzoni Baby loop. Above, the Baby loop is a small transmitting loop with a novel remotely controlled loop tuning capacitor and tuning mechanism, and gamma match. This article will consider NEC-5 models of a similar antenna at 2.5m centre height above ‘average ground’. Key assumptions are mean […]
- A template for an air filter foam elementI was somewhat frustrated that I could not easily buy air filter foam inserts for the common 25cc Chinese chainsaw. Sellers sold the housing, but no filter element in it. So, the project is to make a template to cut a foam element that is a neat fit inside the housing. Above is a sketch […]
- IoT water tank telemetry project – HC-SR04 – second trialIoT water tank telemetry project – ultrasonic sensor – #1 described an inexpensive ultrasonic ranging sensor for trial. Above is the HC-SR04 ultrasonic ranging sensor, it was purchased for around $6 from a local eBay seller and delivered within days. Note that there are somewhat similar looking things with a second board on the back […]