Viewing profile — lightswitch05

I can +/-5ms jitter using a cheap GPS receiver with serial over USB. Using the same receiver, but with a PPS wire to a GPIO pin on a raspberry pi, I get +/- 5µs jitter. If you are …

I’m not familiar with Chrony. With NTPsec, the PPS driver docs say [0]: > While this driver can discipline the time and frequency relative to the PPS source, it cannot number the s…

> It’s unclear to me why there’s so much delay and jitter in the PPS timestamping. I’ve messed around with this on a couple different GPS chips. I’ve found improvements can be made…

I get weird looks when I speak with people about my GPS PPS NTP servers. This is website amazing. Most of it is way beyond my comprehension, but it’s given me a lot to read up on.

This is off-topic, but I was looking at your sbts-aru project and remembered having read the hackaday post on it about fireworks. I'm curious if you've ever seen the RaspberryShake…

I must admit I've never used chrony, so I'm unfamiliar with how to configure it. I've read a lot say saying gpsmon's shared-memory-segment is a really great interface and to go wit…

> While not intended to be a direct replacement, the application supports most of the UBX configuration functionality in u-blox's Windows-only u-center © tool (only public-domain f…

You can see for yourself the level of accuracy in the ntpviz output. Notice the units of measurement on the graphs: * Clayface: https://www.developerdan.com/ntp/#./clayface/7-days/…

Good question, it absolutely syncs without any network connectivity. For better or for worse, I have it setup NOT to sync to anything else- being a stratum 1 source is enough. Now……

I had this happen before. I used it as an excuse to learn how to setup NTP with a GPS receiver. I made a little blog on it if anyone is interested in the results. Be sure to click …

This is the changelog for 20.8.1, but it’s important to point out that that 4 of the CVEs were also patched in 18.18.2. Shameless promotion time, I have a little utility that can c…

The new feature for subscribed allowlists is going to pair really nicely with the existing support of ABP-style blocklists. I’m very excited for this release!

Three years ago I released a tool called PHP Version Audit. The idea is that it parses the PHP changelog and notifies you if you are running a PHP version that has a CVE or has los…

To answer your question, the levels are important for both regular usage and debugging when something goes wrong. I create a number of debug/info/warning/error log messages through…

Yes, my library absolutely has to support the LTS version of Node, and I run the tests against all supported versions to ensure compatibility. So, one day I can use the nice things…

I’ve written a library with zero production dependencies. Of course I have Jest as a development dependency which pulls in all sorts of stuff. It would be difficult to make a zero-…

I wrote Node Version Audit to automatically keep track of Node patches, particularly for releases that fix CVEs. While it can be ran directly, it is designed to run as part of a pi…

It seems like the most reasonable choice. Incidentally, I have an open-source tool called Node Version Audit [0] which checks a given node version against known CVEs and end-of-lif…

I didn’t realize there were so many CVE-based tools out there! I even have an ultra-specific one for PHP (with some extra logic for support timelines). PHP Version Audit: https://w…

I run these: https://www.github.developerdan.com/hosts/ Of course the PiHole default ‘Steven Black’ list is also a combination of many well maintained lists and so even if you don’…

> I can punch anyone I see on the street in the face. Yes, and then you would be charged with assault. It is great that you work on a tool that respects peoples privacy. I suppose …

I think grouping server-side tracking with JavaScript based tracking is an oversimplification. JavaScript tracking is much more invasive and can access significantly more data. Fro…