Have I been DoS'd? - Lemmy.world
Hi, I know this is quite impossible to diagnose from afar, but I came across the
posting from lemmy.world admins talking about the attacks they are facing where
the database will get overwhelmed and the server doesn’t respond anymore. And
something similar seemed to have happened to my own servers. Now, I’m running my
own self-hosted Lemmy and Mastodon instances (on 2 seperate VPS) and had them
become completely unresponsive yesterday. Mastodon and Lemmy both showed the
“there is an internal/database error” message and my other services (Nextcloud
and Synapse) didn’t load or respond. Login into my VPS console showed me that
both servers ran at 100% CPU load since a couple of hours. I can’t currently SSH
into these servers, as I’m away for a couple of days and forgot to bring my
private SSH key on my Laptop. So, for now I just switched the servers off.
Anyway, the main question is: what should I look at in troubleshooting when I’m
back home? I’m a beginner in selfhosting and I run these instances just for
myself and don’t mind if I’d have to roll them back a couple days (I have
backups). But I would like to learn from this and get better at running my own
services. For reference: I run everything in docker containers behind Nginx
Proxy Manager as my reverse proxy. I have only ports 80, 443 and 22 open to the
outside. I have fail2ban set up. The Mastodon and Lemmy instances are not open
for registration and just have 2 users each (admin + my account).
How to get started? A number of questions ....
https://lemmy.world/post/2231664
How to get started? A number of questions .... - Lemmy.world
Hi there, If I’m looking to use LLM AI in a similar way like Stable Diffusion,
i.e. running it on my own PC using pre-trained models (checkpoints?) - where
would I start? If I would want to have access to it on my mobile devices - is
this a possibility? If I would then later want to create workflows using these
AI tools - say use the LLM to generate prompts and automatically run them on
Stable Diffusion - is this a possibility? I’m consistently frustrated with
ChatGPT seemingly not beeing able to remember a chat history past a certain
point. Would a self-run model be better in that regard (i.e. will I be able to
reference somethin in a chat thread that happened 2 weeks ago?) Are there tools
that would allow cross-thread referencing? I have no expert knowledge
whatsoever, but I don’t shy away from spending hours learning new staff. Will I
be able to take steps working towards my own personal AI assistant? Or would
this be way out of scope for a hobbyist?
What could be happening here? Question about DNS entries
https://lemmy.world/post/1616464
What could be happening here? Question about DNS entries - Lemmy.world
Hi there, I’m trying to set up AdGuard home and it doesn’t seem to work
properly. Maybe I’m getting it wrong on how it’s supposed to work, but I’m kinda
confused right now and it seems to me than Win11 is lying to me about my DNS
entries … Here’s my setup: as I have a VPS server already, I wanted to try and
use it for Adguard as well. Installation there was straightforward enough and I
have it up running and it has a static IP that I would use now as a DNS server,
routing my traffic through it. Now, all tutorials say that one should set the
DNS entries on the router that connects to the Internet, but this option is not
enabled on my router (more about this later on). I thought, no worries, I will
deal with the router situation later and just see how Adguard works with a
single computer. So I went into network settings of my Win11 machine and
configured my IP settings manually. Gave me a fixed IP in my home network and
used the static IP from my adguard server for DNS entries. But this didn’t seem
to do anything. Still got ad’s everywhere although my Adguard dashboard showed a
lot of blocked domains (clearly identifiable as ad-servers by their name). Ok, I
went to troubleshooting and here’s the first weird thing I noticed: When I
sutdown Adguard (as in stopping the docker container it’s running in on my
server), I still can connect to the internet on my Windows machine. This
shouldn’t be happening, no? I set both DNS entries (main and fallback) to the
same IP, where no DNS server should be running and I still got to browse the
web? So, is Windows lying to me and has a secret fallback DNS somewhere that
get’s used when the entries don’t work? Do I not understand how this all should
work? Or - and here my specific router/modem comes into play - my hardware get’s
around DNS entries. I do have a “hybrid modem” which connects to the internet
using both fiber DSL and LTE at the same time to get extra bandwith and speed.
The customer support forum of my ISP revealed that due to the nature of this
“dual line internet connection” DNS entries are fixed on the router and cannot
be changed by the user. I still think the settings in Windows should take
precedence, but admittedly I have no real understanding how this is all supposed
to work in detail. So, question: how could I get Adguard to work on a VPS
without being able to set DNS entries on my router? Would using a second router
get around this (i.e. using the router of my ISP just as a modem and do my home
network/wifi from this second router)? And why would Win11 still connect to the
internet with supposedly broken DNS entries?
Q: Docker container joining existing network with fixed ip (via docker compose)
https://lemmy.world/post/1484786
Q: Docker container joining existing network with fixed ip (via docker compose) - Lemmy.world
Hi, I figured out how to get docker containers to join an existing network with
putting “networks” into the respective sections of the docker-compose.yml If I
want to also give them fixed ip’s on this network, what would the syntax look
like in the docker-compose.yml?
Q: Lemmy and Mastodon instances behind existing reverse proxy
https://lemmy.world/post/1440993
Q: Lemmy and Mastodon instances behind existing reverse proxy - Lemmy.world
This is a slow learning process for me and some of you already helped me a lot
to figure out reverse proxies in general. However, I’m not there yet … so: How
can I set up Lemmy (and Mastodon down the line) behind my existing reverse
proxy? I’m trying to install from docker and the docker compose files come with
templates for reverse proxy configuration, but these are (probably) only valid,
if I’m installing on a dedicated server with nothing else running there. I tried
commenting out the stuff for the proxy configuration, but I can’t seem to get it
to work. The Lemmy install ends up with 5 docker containers (lemmy, lemmy-ui, …)
and I’m not sure which of them need to be adressed by my proxxy setup. Just
getting the lemmy-ui container addressed by nginx didn’t work out. I’m probably
way out of my league with what I’m trying here, but if any of you have some
useful tips I’d be really grateful.
[ELI5] What is a reverse proxy exactly and how do I use it to run several dockerized services on one machine?
https://lemmy.world/post/1377273
[ELI5] What is a reverse proxy exactly and how do I use it to run several dockerized services on one machine? - LemmyWorld
So, I have some idea on what a reverse proxy does and will be using nginx (with
the neat proxy manager UI) for my setup. However, I’m not completely clear what
exactly I want it to do and how I cn use it to run different services on one
machine. I’m especially unclear on the ports configuration … tutorials will say
things like “change the listening port to xxx for that service and to port yyy
for the other service” How does this work, which ports can I use and how do I
need to configure the respective services?
[Question] hosting lemmy on ubuntu server - firewall configuration
https://lemmy.world/post/955995
[Question] hosting lemmy on ubuntu server - firewall configuration - Lemmy.world
Hi, this is a follow-up on the 502 question earlier, which I think I got a step
closer to solving. However, if I try to connect to my lemmy instance now, it
results in a time out. Now, I have set up the ufw firewall to allow nginx http -
do I need to allow anything else to get to connect? Or is my timeout error
something else?
[Question] Installing Lemmy instance from docker -> 502 bad gateway
https://lemmy.world/post/949796
[Question] Installing Lemmy instance from docker -> 502 bad gateway - Lemmy.world
Hi, does anybody have an idea what the reason could be? I installed a lemmy
instance on a VPS using the docker images. Beforehand I installed nginx and got
a letsencrypt - certificate (which seems to have worked). I downloaded the
nginx.conf file from github and made the configurations, also in the
lemmy.config and docker-compose.yml files. However, I’m unsure if there’s
anything else I should look at. Any tips are welcome :)
[Question] Disk Space for Lemmy and Mastodon instances
https://lemmy.world/post/838658
[Question] Disk Space for Lemmy and Mastodon instances - Lemmy.world
Hi, I’m new with self-hosting but managed to set up my own Lemmy and Mastodon
instances on a VPS recently. However, I ran into an issue with disk space quite
rapidly (which I had way too few, because I started with the cheapest, smallest
package for my VPS). Now I prepare a new setup, where I’ll be able to
dynamically scale disk space as needed, but this can get expensive quickly.
Therefor my question: How much disk space do I typically need for private (1-3
user) instances of Lemmy and Mastodon? Are there settings, where I can limit the
disk space utilization (at the cost of older stored content being overwritten)?
I would be fine with needing up to like 30-40 GB, but any more than that would
be getting kinda expensive …
Not sure if I'm up to the task (selfhosting Lemmy & Mastodon)
https://lemmy.world/post/455061
Not sure if I'm up to the task (selfhosting Lemmy & Mastodon) - Lemmy.world
Out of curiosity I’m currently considering to self-host a Lemmy and a Mastodon
instance. Just for me (and maybe 2-3 close friends) privately. The proposition
of having full control over my social media sounds appealing to me. However, I’m
not a software developer and I have next to no experience in self-hosting
anything. Also, I don’t plan to make self-hosting a hobby of mine. Given these
circumstances - how much time investment do you think is needed to keep
everything running smoothly. I wouldn’t mind spending 1-2 hours a week, but if
it’s more like 1-2 hours a day, I would stay clear. Also, are there resources
for troubleshooting available? I found the installations guides and some seem to
be quite good for a layperson, giving step-by-step advice, however where to go
if it doesn’t work? I’m trying to make up my mind if it would be worthwhile to
try or if I set myself up with wasting a lot of time :) So, any advise is
welcome.
