PlutoniumAcid

TLDR:

• Update: the server software has a bug about generating+saving certificates. Bug has been reported; as a workaround I added the local IP to my local 'hosts' file so I can continue (but that does not solve it of course).
• I suspect there's a problem with running two servers off the same IP address, each with their own DNS name?

Problem:

• When I enter https://my.domain.abc into Firefox, I get an error ERR_SSL_UNRECOGNIZED_NAME_ALERT instead of seeing the site.

Context:

• I have a static public IP address, and a Unifi gateway that directs the ports 80,443 to my server at 192.168.1.10 where Nginx Proxy Manager is running as a Docker container. This also gives me a _Let's Encrypt certificate.
• I use Cloudflare and have a domain foo.abc pointed to my static public IP address. This domain works, and also a number of subdomains with various Docker services.
• I have now set up a second server running yunohost. I can access this on my local LAN at https://192.168.1.14.
• This yunohost is set up with a DynDNS xyz.nohost.me. The current certificate is self-signed.
• Certain other ports that yunohost wants (22,25,587,993,5222,5269) are also routed directly to 192.168.1.14 by the gateway mentioned above.
• All of the above context is OK. Yunohost diagnostics says that DNS records are correctly configured for this domain. Everything is great (except reverse DNS lookup which is only relevant for outgoing email).

Before getting a proper certificate for the yunohost server and its domain, I need to make the yunohost reachable at all, and I don't see what I am missing.

What am I missing?

Neighborhood cats shit right in the middle of my lawn. It stinks and the robot lawn mover makes it even worse.

I do NOT like cats, and this is not helping.

What works to keep them from shitting on my lawn?

The votes have spoken. Some people are cat lovers; thanks for the great advice from the rest of you! I will not go out of my way to accommodate other people's pets that aren't welcome on my property. My first weapon of choice will be chili because it's simple and cheap. Other ideas have been noted.

The feed shows posts with - 35 votes. Why? Clearly the crowd says it's garbage, so can it be hidden?

On Windows, we've had the defrag tool and others, that happily works on a drive even while it is in use, even the OS disk.

On Linux, I know of the fsck command but that requires the drive in question to be unmounted. Not great when you want to check a running server. I do not want to stop my server and boot it from USB, just to run a disk check. I can't imagine that's what the data centers are doing, either!

Surely some Linux tool exists that can do some basic checks on a running system?

I mean, the simplest answer is to lay a new cable, and that is definitely what I am going to do - that's not my question.

But this is a long run, and it would be neat if I could salvage some of that cable. How can I discover where the cable is damaged?

One stupid solution would be to halve the cable and crimp each end, and then test each new cable. Repeat iteratively. I would end up with a few broken cables and a bunch of tested cables, but they might be short.

How do the pro's do this? (Short of throwing the whole thing away!)

edit: you are right, it's the I/O WAIT that it destroying my performance:
%Cpu(s): 0,3 us, 0,5 sy, 0,0 ni, 50,1 id, 49,0 wa, 0,0 hi, 0,1 si, 0,0 st
I could clearly see it using nmon > d > l > - such as was suggested by @SayCyberOnceMore. Not quite sure what to do about it, as it's simply my sdb1 drive which is a Samsung 1TB 2.5" HDD. I have now ordered a 2TB SSD and maybe I am going to reinstall from scratch on that new drive as sda1. I realize that's just treating the symptom and not the root cause, so I should probably also look for that root cause. But that's for another Lemmy thread!

I really don't understand what is causing this. I run a few very small containers, and everything is fine - but when I start something bigger like Photoprism, Immich, or even MariaDB or PostgreSQL, then something causes the CPU load to rise indefinitely.

Notably, the top command doesn't show anything special, nothing eats RAM, nothing uses 100% CPU. And yet, the load is rising fast. If I leave it be, my ssh session loses connection. Hopping onto the host itself shows a load of over 50,or even over 70. I don't grok how a system can even get that high at all.

My server is an older Intel i7 with 16GB RAM running Ubuntu22. 04 LTS.

How can I troubleshoot this, when 'top' doesn't show any culprit and it does not seem to be caused by any one specific container?

(this makes me wonder how people can run anything at all off of a Raspberry Pi. My machine isn't "beefy" but a Pi would be so much less.)

Having ordered my first 3D printer, I am giddy and preparing various things.

I have installed Octoprint on my home server as a Docker container, but when running it, it seems that it wants to have a serial connection to a printer. Octoprint expects to be running on a Raspberry that is connected via its serial interface.

What am I missing?

The printer I ordered (Prusa Mini) comes with a wifi dongle, so I guess there will be a way to reach it over the network. But that does not automagically mean Octoprint can work with it.

I am looking to buy a 3D printer for my son (and for myself too). We want to print, not tinker, so it should be something that gives great results right from the start.

Can you guide me to a sensible choice?

My first choice would have to be the Prusa MK3S Plus but it is outside the price range I am shopping for, except if I buy used -- would that be bad to do?

Realistic choices:

• €380 used Prusa MK3S+, with 10 days printing time
• €400 new Prusa Mini+
• €250 new Ender 3 V2 Neo

Criteria:

• High quality, no hassle. I want to print, not tinker.
• Preferably (semi)assembled.
• Auto bed leveling.
• Auto error detection (filament, power, etc.?).
• Budget up to 600 EUR/USD including extras, excluding filament.
• Speed is not important.
• Size is not important.
• Must not be cloud-based.

Questions:

• Surface?! Smooth, os satin, or textured? (Why) Should I have more than one kind?
• (Why) Do I need an enclosure?

For all the amazing work and effort that is being poured into the fediverse in the past several weeks, and in particular what we users can see with the Voyager app - this deserves to be said with great gratitude!

❤️ Voyager is such a polished app ❤️

Just small details like how the app takes you one step back for each time you press the "Posts" button, from comment to post, from post to feed, to top of feed, and finally, to communities.

Much elegant, very wow 🐶

TLDR: I consistently fail to set up Nextcloud on Docker. Halp pls?

Hi all - please help out a fellow self-hoster, if you have experience with Nextcloud. I have tried several approaches but I fail at various steps. Rather than describe my woes, I hope that I could get a "known good" configuration from the community?

What I have:

• a homelab server and a NAS, wired to a dedicated switch using priority ports.
• the server is running Linux, Docker, and NPM proxy which takes care of domains and SSL certs.

What I want:

• a docker-compose.yml that sets up Nextcloud without SSL. Just that.
• ideally but optionally, the compose file might include Nextcloud office-components and other neat additions that you have found useful.

Your comments, ideas, and other input will be much appreciated!!

TLDR: I am running some Docker containers on a homelab server, and the containers' volumes are mapped to NFS shares on my NAS. Is that bad performance?

• I have a Linux PC that acts as my homelab server, and a Synology NAS.
• The server is fast but has 100GB SSD.
• The NAS is slow(er) but has oodles of storage.
• Both devices are wired to their own little gigabit switch, using priority ports.

Of course it's slower to run off HDD drives compared to SSD, but I do not have a large SSD. The question is: (why) would it be "bad practice" to separate CPU and storage this way? Isn't that pretty much what a data center also does?

Sorry, noob here. I have been using Linux for a decade at least, but some basic stuff still stump me. Today, it's file sharing: The idea is that the server is good at CPU and the NAS is good at storage. My NAS does run Docker but the services are slow; and my server runs a bunch of Docker containers just fine but has limited disk space (SSD).

Want:

• Share a directory on my NAS, so that my homelab server can use it.
• Security is not important; the share does not need to be locked down.

Have:

• Server+NAS are on their own little 1Gb Cisco switch, so network latency should be minimal.
• Linux NAS and Linux server have separate users/UID/GID.

Whatever I try, it always ends up with errors about 'access denied' or read-only or something. I conclude that I am not smart enough to figure it out.

Help?