this post was submitted on 11 Jul 2025
286 points (96.4% liked)

You Should Know

39699 readers
1239 users here now

YSK - for all the things that can make your life easier!

The rules for posting and commenting, besides the rules defined here for lemmy.world, are as follows:

Rules (interactive)


Rule 1- All posts must begin with YSK.

All posts must begin with YSK. If you're a Mastodon user, then include YSK after @youshouldknow. This is a community to share tips and tricks that will help you improve your life.



Rule 2- Your post body text must include the reason "Why" YSK:

**In your post's text body, you must include the reason "Why" YSK: It’s helpful for readability, and informs readers about the importance of the content. **



Rule 3- Do not seek mental, medical and professional help here.

Do not seek mental, medical and professional help here. Breaking this rule will not get you or your post removed, but it will put you at risk, and possibly in danger.



Rule 4- No self promotion or upvote-farming of any kind.

That's it.



Rule 5- No baiting or sealioning or promoting an agenda.

Posts and comments which, instead of being of an innocuous nature, are specifically intended (based on reports and in the opinion of our crack moderation team) to bait users into ideological wars on charged political topics will be removed and the authors warned - or banned - depending on severity.



Rule 6- Regarding non-YSK posts.

Provided it is about the community itself, you may post non-YSK posts using the [META] tag on your post title.



Rule 7- You can't harass or disturb other members.

If you harass or discriminate against any individual member, you will be removed.

If you are a member, sympathizer or a resemblant of a movement that is known to largely hate, mock, discriminate against, and/or want to take lives of a group of people and you were provably vocal about your hate, then you will be banned on sight.

For further explanation, clarification and feedback about this rule, you may follow this link.



Rule 8- All comments should try to stay relevant to their parent content.



Rule 9- Reposts from other platforms are not allowed.

Let everyone have their own content.



Rule 10- The majority of bots aren't allowed to participate here.

Unless included in our Whitelist for Bots, your bot will not be allowed to participate in this community. To have your bot whitelisted, please contact the moderators for a short review.



Rule 11- Posts must actually be true: Disiniformation, trolling, and being misleading will not be tolerated. Repeated or egregious attempts will earn you a ban. This also applies to filing reports: If you continually file false reports YOU WILL BE BANNED! We can see who reports what, and shenanigans will not be tolerated.

If you file a report, include what specific rule is being violated and how.



Partnered Communities:

You can view our partnered communities list by following this link. To partner with our community and be included, you are free to message the moderators or comment on a pinned post.

Community Moderation

For inquiry on becoming a moderator of this community, you may comment on the pinned post of the time, or simply shoot a message to the current moderators.

Credits

Our icon(masterpiece) was made by @clen15!

founded 2 years ago
MODERATORS
 

So if you do the Docker setup, obeying the instructions and substituting everything that needs to get substituted, but don't proofread the files in detail and so miss that line 40 of docker-compose.yml doesn't have the variable {{domain}} like in every other location you need to write your domain, but instead just says LEMMY_UI_LEMMY_EXTERNAL_HOST=lemmy.ml and so you fail to change it away from lemmy.ml... then, everything will work, until you type in your admin password for the first time, at which point your browser will send a request to lemmy.ml which includes your admin username, your email address, and the admin password you're trying to set. And, also, of course your IP address wherever you are sitting and setting up the server.

I have no reason at all to think the Lemmy devs have set their server up to log this information when it comes in. nginx will throw it away by default, of course, but it would be easy for them to have it save it instead, if they wanted to. And my guess is most people won't use a different admin password once they figure out why creating their admin user isn't working and fix it.

@dessalines@lemmy.ml @nutomic@lemmy.ml I think you should fix the docker-compose.yml file not to do this.

Edit: Just to increase the information-to-rudeness ratio of my post. The docs are at:

https://join-lemmy.org/docs/administration/install_docker.html

And they recommend using wget to download:

https://raw.githubusercontent.com/LemmyNet/lemmy-docs/main/assets/docker-compose.yml

Which is pulled from:

https://github.com/LemmyNet/lemmy-docs/tree/main/assets

Which is what has the wrong line 40 in it.

top 50 comments
sorted by: hot top controversial new old
[–] AusatKeyboardPremi@lemmy.world 30 points 3 hours ago (1 children)

Thank you for discovering this, and creating awareness around it.

Seems like a genuine miss, contrary to what the comments here would have one believe, given that the compose file (and rest of the docs) were mostly derived from whatever worked for the developers themselves.

[–] PhilipTheBucket@ponder.cat 10 points 2 hours ago

Seems like a genuine miss, contrary to what the comments here would have one believe,

You might be right. I looked at the history and the way it came in, and it's not as wildly anomalous to the rest of the file when looked at in context. Maybe it's just a mistake.

[–] Aatube@kbin.melroy.org 4 points 2 hours ago (1 children)

rise up against dockers and the evil empire of containerization! reproducibility! microservices! middle management! security!/j

[–] PhilipTheBucket@ponder.cat 2 points 2 hours ago

Yeah 100%, it's all Docker's fault at the end of the day

[–] Semi_Hemi_Demigod@lemmy.world 98 points 5 hours ago (4 children)

That’s so on-character for .ml

[–] TachyonTele@piefed.social 34 points 4 hours ago (1 children)

Im loving that there are ml users coming in and defending it lol

[–] PhilipTheBucket@ponder.cat 17 points 4 hours ago (1 children)

Yeah, don't they realize they could have just spent that time productively by making a pull request, instead?

[–] TachyonTele@piefed.social 22 points 4 hours ago (1 children)

Honestly, you found the fault. I agree that you should put the request in.

[–] PhilipTheBucket@ponder.cat 9 points 3 hours ago (2 children)

I mean probably I should. There are a bunch of people accusing me of being dick headed and petty and they're not completely wrong. Honestly, I just don't feel like helping the Lemmy devs. Dessalines, at least, is totally unapologetic about being a dickhead to people he has power over. That puts me in a mindset where, mostly, I want to talk to other people about potential harm he's in a position to do, and not really in a mindset where I want to do even a small amount of extra work on his behalf.

I'm going to tell other people that he's in a position to take their passwords. If he wants to see that and put himself not in that position anymore? Great, I think he should. If he gets his feelings hurt because I'm not being super friendly about it? Well.. okay. I'm not trying to be malicious about it or do anything other than clearly communicate the problem. But it seems like the lemmy.ml "in charge" crew in general has a lot of a mentality that's kind of like, "Well, I'm in charge, and you're not, so fuck what you think and fuck your rights. Ban." (or whatever). The way I operate is that really makes me not want to be extra friendly or courteous to people. I used to have a regular donation to Lemmy development set up, I used to take it seriously the idea of getting involved in contributing to the code, and then I observed how they operate, and ... like I say I'm mostly talking to the other people involved who I think should be aware of this. If the devs want to react, fix it, or get involved in the conversation, then sure, sounds good.

The fix is in the comments below, if someone else wants to contribute it and do the very small amount of work of getting it in.

[–] TachyonTele@piefed.social 6 points 3 hours ago (1 children)

Regardless of all that drama, you could have spent five minutes at anytime in the last two hours writing significantly less than you have, and putting the the request in.

You could have been done doing it in-between replies. Just saying.

[–] BassTurd@lemmy.world 4 points 2 hours ago

You could do it to. Be the change you want to see, or be a dick. Your choice I guess.

[–] percent@infosec.pub 4 points 2 hours ago* (last edited 2 hours ago) (2 children)

It sounds like a pull request would have been much more helpful, with much less effort. But you want it fixed less than you want it publicized, so you chose this option (even though you could have done both).

In other words, you cared less about the people impacted by this problem, and more about your own opportunity to put the author(s) on blast like this.

And you care about that opportunity so much, that it's even worth it to show this dark side of yourself publicly.

Am I understanding that right?

[–] BassTurd@lemmy.world 5 points 2 hours ago (2 children)

Or OP is spreading the word to get it out there. Now it's got eyes on it thanks to OPs work.

Jesus. Some of you people just want to shit on someone for doing a good thing for no reason. Have you put in a pull request yet or are you just showing your dark side on top of being a dick to OP who did something good?

[–] PhilipTheBucket@ponder.cat 4 points 2 hours ago

One of the .ml users down below volunteered to put in the PR later tonight if no one else has, so it sounds like both bases are covered now.

[–] percent@infosec.pub 3 points 2 hours ago

They could have done both.

If it's not fixed by Monday, I will consider starting the approval process from the legal department that requires it from me.

I wish I had the freedom to just open a PR anywhere anytime, but I don't.

[–] PhilipTheBucket@ponder.cat 3 points 2 hours ago (1 children)

Let's not get carried away. Shared software systems are about more than the software. If you're looking only at the software, and that was literally 100% of what is important here and nothing else, then yes, you're right.

But you want it fixed less than you want it publicized

100%. Yes. Correct. I also want it fixed, but that's completely trivial, with or without the pull request.

[–] percent@infosec.pub 5 points 2 hours ago

Let's not get carried away.

...

Right...

[–] PhilipTheBucket@ponder.cat 50 points 5 hours ago (1 children)

The longer I look at it the more suspicious I am of it, to be honest. I'm just kind of generally a paranoid and accusatory person, so take that into account, but... the files are pretty carefully set up. They have variable substitutions for everything, including a bunch of places where there's a template substitution to change a string around when setting cache keys so that it'll still work out-of-the-box right away, even in complex configurations like multiple domains on a single server. It all works out-of-the-box right away, they've clearly been attentive to making sure it's all set up right and keeps working cleanly as things have been evolving forward. Except for that one place.

[–] aubeynarf@lemmynsfw.com 11 points 5 hours ago

this is how those Marxist Leninst nation state actors work

[–] OpenStars@piefed.social 18 points 4 hours ago (1 children)

We are using their tools though...

Well, you are, while I am on PieFed:-P If you do not like what you've heard here, then consider switching to Piefed.World (Lemmy.World's recently-announced PieFed replacement for Lemmy)

[–] tal@lemmy.today 5 points 4 hours ago* (last edited 3 hours ago) (1 children)

Oh, that's interesting. Didn't know about that.

I don't think that there's a way to list instances that a PieFed instance has defederated from, unlike Lemmy; while both have a list of instances at /instances, only Lemmy indicates which ones have been defederated from. It was a helpful tool to help me guess the sort of content an instance had.

Like:

https://lemmy.world/instances (under "Blocked Instances")

https://piefed.world/instances

EDIT: It does show the last time that the instance sent data, and I guess you could sort of guess that if a large instance that probably has activity hasn't sent data to the PieFed instance recently


like lemmygrad.ml and hexbear.net on piefed.world


then they're probably defederated. But it doesn't clearly indicate that this is the case, either.

[–] klu9@piefed.social 4 points 3 hours ago

Try asking in !piefed_meta@piefed.social , !piefed_help@piefed.social or https://codeberg.org/rimu/pyfedi/issues

I've only been on PieFed a month or so and they've already dealt with half a dozen things I've mentioned, from bugs to feature requests.

[–] BroBot9000@lemmy.world 39 points 5 hours ago (1 children)

Was just gonna say. Exactly what some authoritarian boot lickers would do.

[–] Semi_Hemi_Demigod@lemmy.world 43 points 5 hours ago

“Of course the Central Committee would have access to your instance. Why is that a problem? Are you doing something counter-revolutionary?!”

[–] Rentlar@lemmy.ca 5 points 3 hours ago

Good catch, seems like an oversight.

[–] DeathByBigSad@sh.itjust.works 20 points 5 hours ago (2 children)

Bruh

Now I have trust issues with open source programs.

points glock at VLC Media Player

"WHO THE FUCK DO YOU WORK FOR? TRYING TO JUMPSCARE ME?"

💥🔫
💥🔫
💥🔫
💥🔫
💥🔫
💥🔫

[–] Stovetop@lemmy.world 13 points 4 hours ago

I'm reminded of stories I've heard of graduate students hiding a note and some cash in the pages of their theses that they submit to the university, just to see if anyone bothers reading it and takes the cash. They return years later to find it still there.

With open source, the code is all there ready for review by anyone, as long as you have the technical knowhow and patience to review the code you use. But like reading the terms and conditions for everything we use, how many people actually take the time to go through all that code?

[–] n3m37h@sh.itjust.works 6 points 4 hours ago

Quick, Louis Rossmann next! Who knows who that off the rail New Yarker will do next!

[–] Azzu@lemmy.dbzer0.com 29 points 5 hours ago (3 children)

Why make a Lemmy post about this and not just a GitHub issue?

[–] PhilipTheBucket@ponder.cat 90 points 5 hours ago (1 children)

I think it should be more public knowledge than just people who peruse the github issues. Also, it's so trivial to fix that it will save them some time if they don't have to close the issue after they spend literally 10-15 seconds fixing it.

[–] limer@lemmy.dbzer0.com 68 points 5 hours ago (27 children)

I think you should also make a GitHub issue too

load more comments (27 replies)
[–] southsamurai@sh.itjust.works 2 points 3 hours ago* (last edited 3 hours ago)

Just for the hell of it, I don't know about OP, but I don't even know how to.

I went to the relevant linked section and couldn't find a way to raise an issue directly. I'm going to try again, and if I succeed I'll return here and make a top level comment for anyone scrolling by and wondering. I've never tried to do this before, so I'll see how it goes.

Edit: aha!

You have to go to the issues page and select the "new issue" button, where you'll be directed to log in to github.

Which, for me, means I'm finished trying. No desire whatsoever to have another login for a one time thing. If I ever manage to learn enough code to do anything like this often enough, I'd do it, but it just isn't worth it to satisfy my curiosity about the process.

load more comments (1 replies)
[–] socsa@piefed.social 11 points 4 hours ago (1 children)

The funny part about this post is that @dessalines@lemmy.ml literally will not post on this instance (or most instances besides the tankie triad) because he is a coward.

[–] MotoAsh@lemmy.world 7 points 4 hours ago

You speak truth, and the proof is that coward will not even aknowledge this news. Mark my words... tankies are just fascists of a different degeneracy.

[–] Cyberflunk@lemmy.world 11 points 5 hours ago (1 children)

Can you point to a repository somewhere?

[–] PhilipTheBucket@ponder.cat 10 points 4 hours ago* (last edited 4 hours ago)
***
a/docker-compose.yml	2025-07-12 00:17:33.050443300 +0000
+++ b/docker-compose.yml	2025-07-12 00:18:21.038972526 +0000
@@ -37,7 +37,7 @@
     image: dessalines/lemmy-ui:0.19.12
     environment:
       - LEMMY_UI_LEMMY_INTERNAL_HOST=lemmy:8536
-      - LEMMY_UI_LEMMY_EXTERNAL_HOST=lemmy.ml
+      - LEMMY_UI_LEMMY_EXTERNAL_HOST={{ domain }}
       - LEMMY_UI_HTTPS=true
     volumes:
       - ./volumes/lemmy-ui/extra_themes:/app/extra_themes

Edit: From https://github.com/LemmyNet/lemmy-docs/tree/main/assets

load more comments
view more: next ›