 | Lars Fosdal on Security alarm provider Woonve… |
 | Thomas Mueller on Question got closed in May 202… |
 | Thaddy de Koning on Formulier voor bewindvoerders… |
| Thaddy de Koning on Formulier voor bewindvoerders… |
| Thaddy de Koning on Formulier voor bewindvoerders… |
Posted by jpluimers on 2024/04/29
Het grappige van sommige Tweakers.net artikelen is dat er dan ineens veel tips over een concurrerend product in staat (omdat de laatste over het algemeen op bepaalde vlakke beter is).
Zo ook met diverse handige Stream Deck (van Elgato) tips in commentaar onder het artikel [Wayback/Archive] Mountain brengt DisplayPad- en MacroPad-toetsenbordjes uit voor content creators – Computer – Nieuws – Tweakers.
Samenvatting:
Posted in Hardware, IoT Internet of Things, KVM keyboard/video/mouse, LifeHacker, Network-and-equipment, Power User, USB, USB-C | Leave a Comment »
Posted by jpluimers on 2023/08/28
Too bad that [Wayback/Archive] Cara (@Caramelia79) / Twitter deleted their tweet before it got archived, so this lone tweet does not really make sense now:
[Archive] Jeroen Wiert Pluimers on Twitter: “@Caramelia79 @unimanatee Heute neu gelernt: AEG Methode.” / Twitter
The joke however was this:
AEG Methode:
- Ausschalten
- Einschalten
- Geht
It is also known as “AEG-Prinzip” and refers back to the AEG brand that was (still is?) big in Germany for household appliances and industrial products.
The not so cool thing is that by now it seams to mean:
as about a year ago some AEG microwave appliance models show errors F606 and F254 after a firmware update: they now think they are steam ovens but cannot find the correct steam hardware:
Posted in Fun, Hardware, IoT Internet of Things, LifeHacker, Network-and-equipment, Power User | Leave a Comment »
Posted by jpluimers on 2022/11/25
For my link archive an interesting blog post by isotopp (Kristian Köhntopp)
[Wayback] My home sensor network
I have been asked to document my home sensor network. Being married to a person with a background in web security sets boundary conditions:
- No cloud. We are running all services locally.
- No control, only metrics.
I am collecting data from a number of plugs with power meters over Wifi, using the MQTT protocol. I am also collecting data from a number of temperature sensors over Zigbee, and convert to MQTT. The MQTT data is ingested into Influx, and then read and plotted in Grafana. All of this is dockered and runs locally on an Ubuntu server.
Via [Archive] Kristian Köhntopp on Twitter: “For @sluongng …”
–jeroen
Posted in Hardware, IoT Internet of Things, Power User | Leave a Comment »
Posted by jpluimers on 2022/11/01
Want: [Wayback/Archive] SMLIGHT SLZB-06 – A Zigbee 3.0 to Ethernet, USB, and WiFi adapter with PoE support – CNX Software
Startup SMLIGHT has launched the SLZB-06 Zigbee 3.0 to Ethernet, USB, and WiFi adapter with PoE support that works out of the box with open-source software such as Home Assistant and Zigbee2MQTT.
The device combines Texas Instruments’ СС2652Р microcontroller for Zigbee with ESP32 for WiFi, data transfer to Ethernet or USB, and peripheral functions such as LEDs and a button.The design is complemented with Microchip LAN8720 for Ethernet.
Posted in Development, ESP32, Ethernet, Hardware, Hardware Development, Hardware Interfacing, IoT Internet of Things, Matter, MQ Message Queueing/Queuing, MQTT, Network-and-equipment, PoE - Power over Ethernet, Power User, Software Development, USB, WiFi, Z-Wave, Zigbee | Leave a Comment »
Posted by jpluimers on 2022/09/27
Want: [Wayback] The Hardware Hacking Handbook | No Starch Press
The Hardware Hacking Handbook
Breaking Embedded Security with Hardware Attacksby Colin O’Flynn and Jasper van WoudenbergNovember 2021, 512 pp.ISBN-13:9781593278748Print Book (PREORDER) and FREE Ebook, $49.99Ebook (PDF, Mobi, and ePub), $39.99
Via:
Some topics in the book are listed in [Archive.is] Colin O’Flynn on Twitter: “A random thread about a few things that @jzvw and I packed into The Hardware Hacking Handbook (note – this twitter thread is an advertisement, don’t be tricked into thinking this will be some nice useful stand-alone content). Roughly following book order:”.
–jeroen
Posted in Development, Hardware, Hardware Development, IoT Internet of Things, Network-and-equipment, Power User | Leave a Comment »
Posted by jpluimers on 2021/12/23
A well known classic Ring Chime problem is that shortly after warranty expires, it won’t power on any more (no blue light visible at all):
[Wayback] Ring Chime Pro no power – Products / Accessories – Ring Community
Usually the built-in power supply is toast, and it is relatively easy to replace this with a USB power supply.
The below video shows how to do that for a classic Ring Chime Pro.
I’ve repeated the steps for a classic Ring Chime (model 8AC3S5-0EU0) that I got from [Archive.is] Ring Chime – WLAN Türgong für Video Türklingel, weiß: Amazon.de: Alle Produkte
–jeroen
Posted in Development, Hardware Development, IoT Internet of Things, Network-and-equipment, Power User, Ring Doorbell/Chime (Amazon) | Leave a Comment »
Posted by jpluimers on 2021/12/16
So you do not have to do a tear-down yourself: [Wayback] BHACP021 Chime Pro (2nd Generation) Teardown Internal Photos EMC TEST REPORT Ring
Chime Pro (2nd Generation) Internal Photos details for FCC ID 2AEUPBHACP021 made by Ring LLC. Document Includes Internal Photos EMC TEST REPORT
–jeroen
Posted in Development, Hardware Development, IoT Internet of Things, Network-and-equipment, Power User, Ring Doorbell/Chime (Amazon) | Leave a Comment »
Posted by jpluimers on 2021/10/27
Just 2 years ago I bumped into shodan.io through [Wayback] Onderzoekers: zestig slecht beveiligde Nederlandse scada-systemen op internet – Computer – Nieuws – Tweakers and saved the entry [Wayback] Shodan (website) – Wikipedia:
Shodan is a search engine that lets the user find specific types of computers (webcams, routers, servers, etc.) connected to the internet using a variety of filters. Some have also described it as a search engine of service banners, which are metadata that the server sends back to the client.[1] This can be information about the server software, what options the service supports, a welcome message or anything else that the client can find out before interacting with the server.
Shodan collects data mostly on web servers (HTTP/HTTPS – ports 80, 8080, 443, 8443), as well as FTP (port 21), SSH (port 22), Telnet (port 23), SNMP (port 161), IMAP (ports 143, or (encrypted) 993), SMTP (port 25), SIP (port 5060),[2] and Real Time Streaming Protocol (RTSP, port 554). The latter can be used to access webcams and their video stream.[3]
It was launched in 2009 by computer programmer John Matherly, who, in 2003,[4] conceived the idea of searching devices linked to the Internet.
It looked promising, but I was really pressed for time (having impromptu arrange all care for my mom, and became even more so when I got diagnosed with rectum cancer later that year), so did not pay much attention apart from registering.
Last year in the midst of my chemos I noted [Archive.is] Nate Warfield on Twitter: “https://t.co/16969jRfuL The latest Citrix vulnerability looks bad but there might be time to fix them before PoC comes out. The @shodanhq query above might help. (support.citrix.com/article/CTX269106 has more details)… “ (I think via @jilles_com) , so put it on my list of things to look into a bit further.
Since then, I found out a lot of people dislike Shodan and want to blacklist it because they see it as a threat. It feels like people think the internet is like the [Wayback] Ravenous Bugblatter Beast of Traal | Hitchhikers | Fandom
The Ravenous Bugblatter Beast of Traal is a vicious wild animal from the planet of [Wayback] Traal, known for its never-ending hunger and its mind-boggling stupidity. One of the main features of the Beast is that if you can’t see it, it assumes it can’t see you.
(This by the way is one of the reasons for Towel Day – Wikipedia)
Anyway: a few lists of Shodan IPv4 addresses and hostnames, and means to maintain them for the ones interested:
Reality is that the internet is much smarter, so if you block Shodan from seeing you, others from the internet still will and if you have vulnerable services, one day they will be abused. For instance, this personal anecdote:
I forgot I had a port redirection on my router for RDP access a non longer existing Windows system any more. I forgot that this Windows machine had no fixed DHCP-lease while in use (it kept it’s lease as it was always on).
When that machine was long gone, another temporary Windows machine obtained the same internal machine (the router had been rebooted and after reboot hands out previously handed out IP address), and boom: the new Windows machine was bombarded with RDP logon requests.
In the end, the new Windows machine was not compromised, so I was lucky as it could have been.
Back when registering, shodan.io sent SMTP mail via sky.census.shodan.io, so you might want to not blacklist it if you blacklist at all (incidentally, when writing the IP address servicing that hostname was hosted in The Netherlands: [Wayback] 80.82.77.33 – sky.census.shodan.io – Netherlands – IP Volume inc – IP address geolocation).
It is good to think of you use Shodan, as not all usage might be legal where you live or where you travel to.
Some discussion in Dutch on the risks of using Shodan are in the above Tweakers.net link. It boils down to:
That’s basically with anything you find on the internet, for instance by Googling, so nothing new here.
I mainly use Shodan to see if I have any known vulnerabilities exposed. There are not that many ports open, but given the anecdote above, I might screw up again and not be so lucky.
This article has a balanced explanation of Shodan, how you use it, and how to stay safe: [Wayback] How to remove your device from the Shodan IoT search engine.
Posted in Development, IoT Internet of Things, Network-and-equipment, Power User, Security, Software Development, Web Development | Leave a Comment »
Posted by jpluimers on 2021/09/01
IoT power switching equipment at [WayBack] Shelly Shop Europe:
Via: [WayBack] Tweakers Gift Guide 2019 – Smarthome – Koophulp – Tweakers
–jeroen
Posted in Development, Hardware Development, IoT Internet of Things, Network-and-equipment, Power User | Leave a Comment »
Posted by jpluimers on 2021/06/04
For my link archive: [WayBack] Grote Google-storing trof Gmail, YouTube en diensten van derden – IT Pro – Nieuws – Tweakers.
It has some interesting tips for IoT video doorbell products that are less depending on single-choice clouds:
Er bestaan er minimaal eentje; smart deurbel met camera en evt speaker, eigen intern netwerk, compatible met SIP (en video), zelf verantwoordelijk voor opnamen, etc. Enige nadeel is dan wel de prijs, het is een Duits kwaliteitsproduct, dus reken rond de 350 euro voor het absolute basismodel. Doorbird heet het; oa te koop bij Robbshop en CoolBlue of direct bij de fabiraknt’s website.
Nee hoor, ze hebben een LAN API: https://www.doorbird.com/downloads/api_lan.pdf?rev=0.25
Je moet je huis flink geautomatiseerd hebben wil je echt nut van die api willen hebben.als je alles zelf in de hand wil hebben doe je dat ook. Je zorgt er zelf voor dat je webinterface via een externe URL bereikbaar is en dan is het enkel je eigen hardware en internetverbindingen die als SPOF dienen en je kan dan ook makkelijker van solution-provider wisselen zonder vast te zitten.
wellicht is dit een oplossing voor jou?
–jeroen
Posted in Cloud Apps, Internet, IoT Internet of Things, Network-and-equipment, Power User | Leave a Comment »
The Wiert Corner - irregular stream of stuff 