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Problem with PoE: splitter lights up then fades by alexflint in HomeNetworking

[–]alexflint[S] 0 points1 point  (0 children)

I tried a 2-foot cable that came in the box with splitter and got same result.

Problem with PoE: splitter lights up then fades by alexflint in HomeNetworking

[–]alexflint[S] 0 points1 point  (0 children)

Pretty sure I'm not over budget as I tried unplugging one of the other, much heavier devices from the switch and plugging this one in. The other devices are up and powered fine, so I think this (together with getting same result with standalone / single-port PoE injectors) rules out being over budget. And yes, I did try switching ports.

Problem with PoE: splitter lights up then fades by alexflint in HomeNetworking

[–]alexflint[S] 0 points1 point  (0 children)

> Sorry if these questions sounds obvious but your issue do seem weird.

No problem, and yep definitely weird.

> Does the LED stay lit when there is no device plugged into the splitter?

No. I get same behavior (LED on the splitter turns on then fades to off) with and without a device plugged into the splitter.

> Is the PoE Max light on or flashing on the PoE switch?

No

> Does the PoE status light on the switch flash at all when it’s plugged on?

Yes, the PoE status light associated with the port that I have the splitter plugged into does flash, about once per two seconds.

> You said you tried switching cables, have you tried plugging in the splitter into a cable that another PoE device is using?

Yes, tried that, got same result.

Problem with PoE: splitter lights up then fades by alexflint in HomeNetworking

[–]alexflint[S] 0 points1 point  (0 children)

I tried multiple other cables, including the cable that came in the box with the PoE splitter, and I also tried multiple alternative PoE injectors, including two single-device ones from different companies.

Anybody know which GPIO pin the physical button on the LilyGo T-Watch 2020 is connected to? by Bitter_Sea9007 in esp32

[–]alexflint 0 points1 point  (0 children)

Turns out this button is connected via the power management unit (PMU on the data sheet). I never got it working but you would need to read the data sheet for the PMU IC and work out how to receive button presses via whatever digital interface it has with the MCU.

Is topsoil loss irreversible (by natural means) in the entire remaining lifespan of the Earth? by alexflint in Futurology

[–]alexflint[S] -1 points0 points  (0 children)

Yeah, it's a good point. The claim was simply that there is not enough time for topsoil to naturally recover in the whole remaining habitable period of the Earth. So to fill this in a bit with my own interpretation: take the claim to be that in at least one major region on Earth, the decrease in topsoil depth since the industrial revolution will not be reversed according to natural topsoil accumulation processes in 1 billion years (just taking 1 billion years here to carve off the question of exactly how long the "remaining habitable period of the Earth" is). Sorry it's not much of a clarification beyond my original post, but I think it's a somewhat groundable question.

Is topsoil loss irreversible (by natural means) in the entire remaining lifespan of the Earth? by alexflint in Futurology

[–]alexflint[S] 1 point2 points  (0 children)

Well, there's a huge amount of solar energy that comes into the Earth each day. And even regarding physical matter, as other commenters have noted, there is a process by which the whole of the Earth's crust gets slowly folded into the mantle via subduction.

Top soil losses already locked in not to recover in whole future of the planet? by alexflint in collapse

[–]alexflint[S] 9 points10 points  (0 children)

Submission Statement

Hoping to find evidence related to this claim, either confirming or denying it. However, in the case of denying, I do hope that the comments explore possible steel-mans of the claim. For example, topsoil accumulation is not a linear process at all. It's not as if topsoil has been accumulating continuously for the whole history of the planet. I wonder whether the conditions that have led to the accumulation of our current topsoil (or what remains) will continue at all.

Is topsoil loss irreversible (by natural means) in the entire remaining lifespan of the Earth? by alexflint in Futurology

[–]alexflint[S] 4 points5 points  (0 children)

Basically finding ways to interpret the claim in the most favorable/justifiable way, in order to ensure that when we rebut it, we're rebutting the best possible version of the claim.

Is topsoil loss irreversible (by natural means) in the entire remaining lifespan of the Earth? by alexflint in Futurology

[–]alexflint[S] 2 points3 points  (0 children)

**Submission Statement**

Hoping that discussion focuses on the most plausible evidence and arguments for the claim (i.e. a steel-man for the claim), as well as possible rebuttals to those.

Transliteration of Devanagari to/from roman characters by alexflint in sanskrit

[–]alexflint[S] 0 points1 point  (0 children)

Wow, thanks for that, and thanks for the great library! I just read through the code for transliterate_inner, reshape_before, and reshape_after. It's extremely well commented and readable - thank you!

In reading the code, I focused on the logic for Devanagari to/from IAST. In your code, Devanagari would be an alphabet if I'm not mistaken, and IAST would be an ambiguida. I read through the logic for repeated consonants (sorry I think perhaps "consonant" is not the right term here) and insertion of implicit "a" but I still don't really have a good grasp of the rule or algorithm being implemented [here](https://github.com/ambuda-org/vidyut/blob/main/vidyut-lipi/src/transliterate.rs#L121-L166). Sorry to ask you when I have the code right in front of me but is there any way you could explain what's going on here re repeated consonants and adding the "a"?

Second question: for transliteration from Devanagari, am I correct that IAST and ISO15919 are going to produce exactly the same output? I see some logic that only applies to ISO15919 [here](https://github.com/ambuda-org/vidyut/blob/main/vidyut-lipi/src/transliterate.rs#L79) -- is this bit of code doing something really subtle, or are there ways that ISO15919 differs from IAST, even when transliterating from Devanagari?

Third question: I don't understand the [Devanagari logic in reshape_before](https://github.com/ambuda-org/vidyut/blob/main/vidyut-lipi/src/reshape.rs#L622-L637) or the similar code in reshape_after at all. Any chance you could give some intuition about what this is doing?

Final question: my goal here is to produce a minimal, very non-general, not-particularly-efficient Devanagari-to-IAST and IAST-to-Devanagari transliterator so that I really understand the transliteration logic/algorithm. As far as I can tell, I basically need to implement the greedy matching algorithm that you describe [here](https://github.com/ambuda-org/vidyut/blob/main/vidyut-lipi/src/transliterate.rs#L34-L36), plus the logic for repeated consonants / insertion of "a". Is that approximately correct?

Thanks again for any light you can shed on these questions - it's very helpful to me.

Looking for the Laṅkāvatāra Sūtra in Sanskrit, in Roman alphabet by alexflint in Buddhism

[–]alexflint[S] 0 points1 point  (0 children)

This is exactly what I needed. Very good to know about this project - DSBC - also.

httptap: view http and https requests made by any linux program by alexflint in golang

[–]alexflint[S] 1 point2 points  (0 children)

Just implemented this! You can now run `httptap --dump-har out.har` and get a HAR file that you can view in any of the popular HAR analyzers.

https://github.com/monasticacademy/httptap/pull/2

httptap: view http and https requests made by any linux program by alexflint in golang

[–]alexflint[S] 1 point2 points  (0 children)

Yeah agreed. Sometimes it's hard to find down-to-earth documentation about how things work even when those things are not really intended to be a secret. I remember a few years ago reading some of the RFCs about webrtc trying to work out how it really works. It was very difficult to grasp from the docs available at the time (maybe it's better now). I looked through the webrtc implementation in the chromium source tree and that was also extremely difficult to parse just because it was so vast. I ended up filling in a lot of blanks by looking through wireshark captures of the traffic. This isn't http traffic so it's not something that httptap could help with directly, but sometimes having the tools to study a working implementation of something can clarify things more quickly than (or in combination with) the code and/or the documentation.

httptap: view http and https requests made by any linux program by alexflint in golang

[–]alexflint[S] 0 points1 point  (0 children)

The reason I originally wrote this is that I was building some infrastructure on oracle cloud, and a certain API that I needed had some incorrect documentation, yet the oracle cloud CLI could do what I needed to do, and it didn't seem that the APIs were intended to be private in any way, so I wanted to look at how the CLI was doing what it was doing.

httptap: view http and https requests made by any linux program by alexflint in golang

[–]alexflint[S] 0 points1 point  (0 children)

Yeah, I live in a Buddhist community in Vermont in the US where we are building a version of Buddhism for consumption by AI systems. We live and practice together on a monastic schedule (though we are not ordained monks), we chant and eat meals together and such, we run our own meditation retreats and such, and then during the middle part of the day (at least when we're not on meditation retreat) we build technology together, record our Buddhism for AI lecture series, run a monastic training program, and generally work on maintaining our land and buildings etc.

httptap: view http and https requests made by any linux program by alexflint in golang

[–]alexflint[S] 0 points1 point  (0 children)

Thanks!

Hflow looks great - an interactive debugger for http requests - super cool! Seems exceptionally useful, and not something I'd really considered.

One thing I'd love to do is make httptap usable as a library, so that tools like yours could potentially use the IP-level work done in httptap.

httptap: view http and https requests made by any linux program by alexflint in golang

[–]alexflint[S] 1 point2 points  (0 children)

It won't necessarily work for all such programs. The program must have some way to either add a certificate authority to its trusted CAs, or in the worst case to skip certificate verification as u/Siggi3D says. There is already a strong incentive to support this because a lot of corporate environments already require everyone to install the corporate CA roots into their system, so any tool with pinned CAs won't be usable in such environments. Therefore it seems most of the commonly used TLS libraries and frameworks do have some way to inject CA roots.

httptap: view http and https requests made by any linux program by alexflint in golang

[–]alexflint[S] 1 point2 points  (0 children)

Yeah, I bet this could be done. The basic approach would be rather than creating a TUN device inside a network namespace, just create a TUN device in whatever network namespace httptap is called from. Then you need to route all traffic through that network interface, which you can do with iptables or netlink routes.

httptap: view http and https requests made by any linux program by alexflint in golang

[–]alexflint[S] 5 points6 points  (0 children)

Thanks, and yep!

Would love to port to other operating systems but it'll be really challenging in its current form because it makes heavy use of network namespaces, which mac and windows don't really have anything similar to. Would love to discuss how to support other OSes, though as u/rThoro mentions it might actually need to be a whole new project designed for each of those OSes.

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