..:: tchncs ::..

the site often doesn't load or takes 10 seconds to load. i suspect the server suffers from heavy scraping. i would recommend some anti-scraping measures. maybe Anubis as feddit.org is already using. according to reports, it works well for them. link (Abschnitt: "Änderungen am Bot-Schutz")

This instance is about to be moved to a different host, which will cause a few minutes of downtime.

I will try to do it starting 3pm CET and it should not take much longer than half an hour (ideally it will be faster).

geteilt von: https://lemmy.ml/post/43969732

What is Lemmy?

Lemmy is a self-hosted social link aggregation and discussion platform. It is completely free and open, and not controlled by any company. This means that there is no advertising, tracking, or secret algorithms. Content is organized into communities, so it is easy to subscribe to topics that you are interested in, and ignore others. Voting is used to bring the most interesting items to the top. Thanks to @flamingos-cant for contributing to resolve this.

Changes

This release mitigates a potential security issue with the image endpoint. In short, an attacker can inject query parameters and make proxied requests to arbitrary URLs. See the security advisory for details.

Also there are fixes for the database connection pool. The pool size is now at least two, as a lower size can result in deadlocks. Additionally there are now connection timeouts added. If your server logs show pool timeout errors, you should increase database.pool_size in the Lemmy config.

• Fix for image proxy filetypes by @dessalines in #6357
• Enable DB connection timeout by @Nutomic in #6355
• Use min database pool size of 2. by @dessalines in #6345

Upgrade instructions

There are no breaking changes with this release.

Follow the upgrade instructions for ansible or docker.

If you need help with the upgrade, you can ask in our support forum or on the Matrix Chat.

Thanks to everyone

We'd like to thank our many contributors and users of Lemmy for coding, translating, testing, and helping find and fix bugs. We're glad many people find it useful and enjoyable enough to contribute.

Support development

We (@dessalines and @nutomic) have been working full-time on Lemmy for over five years. This is largely thanks to support from NLnet foundation, as well as donations from individual users.

If you like using Lemmy, and want to make sure that we will always be available to work full time building it, consider donating to support its development. A recurring donation is the best way to ensure that open-source software like Lemmy can stay independent and alive, and helps us grow our little developer co-op to support more full-time developers.

• Liberapay (preferred option)
• Open Collective
• Patreon
• Cryptocurrency

Hi,

[edit: working now, problem solved.]

~~I wanted to block an instance from appearing in my feed, but it doesn't work.

The "block user" and "block community" fields offer search results when i type something in the box, and i can select a result that gets added.

But typing into the "block instance" field does nothing, no search results pop up, and even if i enter the exact name, i can't just add it with enter.~~

Trying to import or export my profile since yesterday, I only get the message:

"Please wait a few minutes before you try again to import or export the settings".

On other instances I have never experienced such issues.

Does anybody know a workaround?

Hi friends,

Overview: I live across the world from the discuss.tchncs.de server and have noticed when I "fresh load" (or browser reload, but not a shift-reload force) the banner image on the home page sidebar always re-downloading (it's noticeable, takes 1-2 seconds). Once on the site, clicking "tchncs" top left to go back to the homepage does not trigger the re-download, fyi.

https://discuss.tchncs.de/pictrs/image/7285a9e0-5492-4461-8188-6778d7d594c7.jpeg

• The image is only ~500kb (depending if you get the JPG or webp) and it 100% has proper cache-control headers being sent. It's in 1920x1080 size and always gets down-sized into a smaller size to fit on the sidebar. There is nothing wrong with the server headers in the response.
• Using the webdev console, I found is that Firefox does not seem to send If-modified-since headers in the request so the server has to always return a 200 instead of a 304 (use cached version). So it's probably cached in my browser, by the browser isn't sending the right type of request to trigger use of the cache on my side. Not sure if Lemmy code bug or Firefox bug not sending if-modified-since headers, not a webdev. :)

Suggestion: Since this image appears to only be used to always downscale on the browser side to fit in the sidebar (? I think?), we could probably pre-downscale it on the server side to half or 1/4 of it's fileize. This would reduce network bandwidth for the server side and increase responsiveness on fresh load for users.

Thanks for reading.

the Web UI of https://discuss.tchncs.de/ seems to be loading slowly for me a lot of the time. Like, the past 3 days, it has taken 10+ seconds to load.

I think it's only the Web UI though and not the API because when i click an upvote button, it's snappy fast.

I just saw i asked the same question 3 months ago. Back then, it was also lemmy-ui that caused issues.

Could you/we maybe install/get an alternative web UI, like Photon? https://lemmy.blahaj.zone/ does it like this: https://phtn.lemmy.blahaj.zone/

It started a few days ago that using the https://discuss.tchncs.de/ website (through the browser, default UI) is slow. It typically takes a few (maybe 5) seconds to load the front page, and often when opening a post, it takes another 5 seconds to load.

Writing comments and upvoting seems snappy fast though, so i suspect it has more to do with the UI and not the API.

This has been happening for months, but I think it has gotten worse lately. Loading my default feed (Subscribed with Scaled sort) initially takes anywhere from 10 to 30 seconds every time. Is this normal/expected?

Loading more items works normally, as does everything else, it's just the initial loading that takes frustratingly long. Refreshing the feed right away works quickly too, but after couple of hours the first load is slow again.

I've tried both the default web app and Voyager, and both have the same issue. It's not a critical problem by any means, but it is frustrating, especially since it seems to have gotten worse recently.

Ich habe nun meinen Dauerauftrag mit einer kleinen Spende an Milan eingerichtet. Wer ein freies Netzwerk dauerhaft erhalten möchte, sollte sich überlegen, ob ein paar Euro im Monat dafür nicht drin sind.

Details hier: https://tchncs.de/donate

Big corp wie immer zuverlässiger und mit Top-Notch Lösungen.

The instance has just been updated. There was a slight hickup with web-ui which has been fixed. :)

Alongside the update, I started with a lazy little Ansible playbook. Curious folks are welcome to have a look at the repo. Don't expect anything special, complete or tidy - right now its only purpose is updating the instance. However i think i will add some more config templates to it asap (like systemd, webserver). This instance does not run on Docker, therefor (and for other reasons) the official playbook does not apply. :)

Since their domain issue and resurgence Ive noticed that Im not really seeing any hexbear posts on all anymore, and i honestly miss their posts. I switched to another instance while earlier and saw quite a few from hexbear, but on switching back they arent in my feed. I see that this instance is still federated with them so does anyone know why they don't seem to be showing up?

Wäre es für die Serveradmins möglich, aus den Suchergebnissen unter "Communitys" Communitys aus Instanzen zu entfernen, die nicht mehr in Betrieb sind und daher nicht funktionieren? Oder diesen Umstand zumindest irgendwie zu erwähnen, um niemanden in die Irre zu führen?

feddit.de ist wohl der bekannteste solche Fall, aber vor einigen Minuten hab ich was auf !graz@lemmy.graz.social gepostet und auch diese Instanz scheint nicht mehr zu existieren, jedenfalls kommt nur "Bad Gateway", wenn ich sie aufrufe und mein Beitrag scheint hier https://lemmy.world/c/graz@lemmy.graz.social nicht angekommen zu sein.

LG

As the title says. Ive recently found a job but I still unfortunately need to find a way to eat for the next two weeks before I’m officially paid. I was wondering if there was a loan or borrow community in this lemmy instance. We can set up an agreement, I provide you with my name/id/social media etc. If this post isn’t allowed no worries I’ll figure something out.

I tried creating a post with an image in it. I got the following error message displayed in my browser:

{"data":{"files":null,"msg":"Too wide"},"state":"success"}

Is there something wrong with my image? I was trying to reupload this one from reddit: https://preview.redd.it/2jxm187wf4a81.png?width=11320&format=png&auto=webp&s=494d575dd3110b67b37b1c67afa9e713fd258a07

Should I try again after resizing?

How do I show multiple images I wanted to show the job offer not my face

MIr ist aufgefallen, dass diese Lemmy Instanz zur Zeit sehr langsam föderiert, bzw. Beiträge von Friendica oder Mastodon erscheinen hier nur sehr sehr verzögert, einige Stunden bis Tage später. Ist es ein temporäres Problem oder eines das nur ich habe?

Lemmy auf tchncs föderiert sehr langsam

Kann es sein, das discuss.tchncs.de zur Zeit sehr sehr langsam föderiert? Wenn ich von Friendica oder Mastodon einen Beitrag in eine Community hier schreibe dauert es mindestens einen halben Tag bis der Beitrag hier auf discuss.tchncs.de angekommen ist

Sorry for the delay and the brief interruption, tchncs has just been updated to v0.19.11. :)

The interruption happened due to database migrations taking a little moment.