I wrote Trunk Recorder because I was curious about what my local fire station was up to and I put together the original version of OpenMHz because I figured other people might want to listen to the recordings too.
The latest version of this site makes it easy for other people running Trunk Recorder to share their recordings. I am hoping that making it easier to listen to what our local fire, police and EMS have to go through everyday will lead to a greater appreciation for all the work they do, which goes largely unseen.
The audio from each system is archived for 30 days, so you can go back and listen to events you may have missed.
Github: https://github.com/openmhz
Trunk Recorder is able to record the calls on trunked and conventional radio systems. It uses 1 or more Software Defined Radios (SDRs) to do this. The SDRs capture large swathes of RF and then use software to process what was received. GNU Radio is used to do this processing because it provides lots of convenient RF blocks that can be pieced together to allow for complex RF processing. The libraries from the amazing OP25 project are used for a lot of the P25 functionality. Multiple radio systems can be recorded at the same time.
Trunk Recorder currently supports the following:
- Trunked P25 & SmartNet Systems
- Conventional P25 & analog systems, where each group has a dedicated RF channel
- P25 Phase 1, P25 Phase 2 & Analog voice channels
OSSEC is a scalable, multi-platform, open source Host-based Intrusion Detection System (HIDS). Has a powerful correlation and analysis engine, integrating log analysis, file integrity monitoring, Windows registry monitoring, centralized policy enforcement, rootkit detection, real-time alerting and active response. It runs on most operating systems, including Linux, OpenBSD, FreeBSD, MacOS, Solaris and Windows.
Has supported package repositories for multiple distros: https://www.ossec.net/download-ossec/
Sniffnet is a network monitoring tool to help you easily keep track of your Internet traffic. Whether you want to gather statistics, or you need to inspect more in depth what's going on in your network, this app will get you covered. Sniffnet is a technical tool, but at the same time it strongly focuses on the overall user experience: most of the network analyzers out there are cumbersome to use, while one of Sniffnet's cornerstones is to be usable with ease by everyone.
Today, many CI services provide the ability to build applications, docker images, and many other things. Since some of these builds can take a long time to build, you may want to analyze your build data, average build time, success rate, etc. Unfortunately, few services provide a dashboard for analyzing build data. As far as I know Azure Pipeline provides a great feature called Pipeline reports, but it only shows data about builds that have been run in Azure Pipeline.
CIAnalyzer collects build data using each service API, then normalizes the data format and exports it. So you can create a dashboard that allows you to analyze build data across multiple CI services using your favorite BI tools.
Suricata IDS is a free intrusion detection/prevention system and network security monitoring engine. This is a list of awesome things that go with it.
Top, but for GPU processing on nVidia cards.
It's not that other energy monitors are bad, but they are different in that they are mostly closed systems that provide limited data and require that you use their cloud and phone app platforms. IoTaWatt collects many more metrics and stores that usage history locally. With it's integrated web-server you can manage setup, view real-time status or create detailed graphs using the browser on your computer, tablet or phone. It's your data, in your own home, and subject only to your own privacy and retention policy. You don't need the cloud to get a handle on your hot-tub, EV, solar or heat-pump.
IoTaWatt can, however, easily upload usage data to any of several third party databases with associated apps and analytic tools. For instance PVoutput is a free service that connects easily with IoTaWatt and provides world-class solar energy analytics. There is full support for uploading to influxDB. There is also an API interface for those who want to query data for their own applications or to use in spreadsheets, and there are integrations available for home automation software like Home Assistant.
Can be used to monitor just about any power system on the planet. USian 120/240VAC, European, 230 VAC single-phase, 230VAC three-phase in Australia, Germany, and Norway.
IoTaWatt measures each circuit using a passive sensor that clips around one of the insulated wires. The output of each of these current-transformers is very low-voltage and plugs into any one of IoTaWatt's 14 inputs. Sensors plug into the unit with regular phono plugs.
Fully tested and in compliance with regulatory and safety standards of North America and Europe.
Github: https://github.com/boblemaire/IoTaWatt
Online store: https://stuff.iotawatt.com/
If you only want to monitor power for the whole house, you only need the base kit and two induction sensors (one for each side of the split-phase). $260us
When the US-based SkyHub organisation regrettably closed down in August 2021, enthusiastic former community members wanted to keep the project and the valuable exchange within the community alive. Therefore, in October 2021, we, a group of European astronomers, software developers and hardware engineers, founded Sky360 as a non-profit NGO association, registered in Austria.
We want to provide a community platform, tools and support to all people interested in observing the skies for stars, meteors, satellites, planes, drones, weather phenomena, birds, UAPs or anything else that happens in our atmosphere and low Earth orbit. We already support the Discord channel the UAP Tracking Forum for the community of UAP trackers with over 900 members and more communities to come in the future. Together with and for the community we develop hardware and software for a 24/7 citizen sky observatory that can detect, track, identify and analyze any aerial phenomena and yet is still affordable for citizens.
Claims to be an easy-to-integrate self-hosted tool to monitor the performance of your Ruby on Rails application. This is a simple and free alternative to the New Relic APM, Datadog or other similar services. Realtime monitoring, throughput, average response time, which bits are the slowest, database queries, delayed_job monitoring, and custom events.
Known to work with Rails v4.2 and later. Requires Redis to hold the stats.
Amazingly, plugs right into Huginn using the default instructions.
A port of the original iotop to C with additional features. Acts like top but for disk I/O. Good for keeping an eye on what's bogging your disk array down.
You can add a capability so that you don't need to be root to run it: sudo setcap 'cap_net_admin+eip' /path/to/iotop
Here's my command line: iotop -o -2 -6 -8
- -o - Only show processes that are currently doing I/O.
- -2 - Don't show the PRIO column, because I don't care about that.
- -6 - Don't show the SWAPIN column, because I don't care about that.
- -8 - Don't show the graph, because I want to see more of the command on the line.
In the AUR as iotop-c.
Conky is a free, light-weight system monitor for X, that displays any kind of information on your desktop. Conky can display more than 300 built-in objects, including support for a plethora of OS stats, support for many popular music players, and Lua scripting. Conky can display information either as text, or using simple progress bars and graph widgets, with different fonts and colours. With some clever configuration you can use Conky to make some amazing system dashboards.
Runs on Linux, FreeBSD, OpenBSD, DragonFlyBSD, NetBSD, Solaris, Haiku, and macOS.
Documentation: https://github.com/brndnmtthws/conky/wiki
This GitHub repo provides the underlying source data for the Nationwide Wastewater Monitoring Network data visualizations at biobot.io/data. We provide both Biobot-generated wastewater SARS-CoV-2 concentrations and the associated clinical data used as comparison.
Biobot's data is the largest publicly available dataset on SARS-CoV-2 concentrations in wastewater.
We first launched a pro bono campaign to monitor COVID-19 in wastewater across the United States in March 2020, in collaboration with the Alm lab at MIT (Wu et al., 2020) (Wu et al., 2021) In June 2020, we transitioned to a full-service offering and currently have over 200 participating locations regularly monitoring SARS-CoV-2 wastewater concentrations in their communities on a weekly or monthly basis. As a result of this effort, we have generated a wastewater SARS-CoV-2 dataset consisting of nearly 20,000 samples.
A set of tools for receiving information transmitted by GSM equipment/devices. Consists of Gnuradio blocks and tools for receiving and decoding GSM.
A reasonably reliable traffic per application monitor using BPF.
Receive notifications whenever a new program connects to the network, or when it's modified. Monitors your bandwidth, breaking down traffic by executable, hash, parent, domain, port, or user over time. Uses BPF for accurate, low overhead bandwidth monitoring and fanotify to watch executables for modification.
Resource monitor that shows usage and stats for processor, memory, disks, network and processes. Easy to use, with a game inspired menu system. Fast and "mostly" responsive UI with UP, DOWN keys process selection. Ability to filter processes. Easy switching between sorting options. Send SIGTERM, SIGKILL, SIGINT to selected process. UI menu for changing all config file options. Auto scaling graph for network usage.
The neat thing is, it's implemented as a bunch of shell scripts. The only dependencies are bash, ps, and awk.
tiptop is a command-line system monitoring tool in the spirit of top. It displays various interesting system stats and graphs them. Works on all operating systems. Like bashtop, but re-implemented in Python.
It's gotten so hard to find Raspberry Pis these days that there is a site that tracks models, vendors, whether or not they're in stock, and prices.
Guide to aircraft tracking using ADS-B reception with SDR and docker containers. Published on GitBook.
Github: https://github.com/sdr-enthusiasts/gitbook-adsb-guide
Trunk Recorder is able to record the calls on trunked and conventional radio systems. It uses 1 or more Software Defined Radios (SDRs) to do this. The SDRs capture large swathes of RF and then use software to process what was received. GNURadio is used to do this processing because it provides lots of convenient RF blocks that can be pieced together to allow for complex RF processing. The libraries from the amazing OP25 project are used for a lot of the P25 functionality. Multiple radio systems can be recorded at the same time.
Trunk Recorder currently supports the following:
- Trunked P25 & SmartNet Systems
- Conventional P25 & analog systems, where each group has a dedicated RF channel
- P25 Phase 1, P25 Phase 2 & Analog voice channels
SDRs supported
- RTL-SDR dongles
- HackRF
- Ettus USRP B200, B210, B205
- BladeRF
- Airspy