Mastodawn

aesir Oct 1, 2023

overcome limited RAM on VPS

overcome limited RAM on VPS - Lemmy.world

Hi, Do you have suggestions for kernel tweaks for getting the most out of a RAM limited system? I am running a service requiring 2GB of RAM (netbird) on a VPS which has just 1 GB of memory. I am doing so because I am a stingy bastard and I use only free VPSs for my personal use so I get what I am paying for. Because of this hardware limit in about 12 hours from service start I begin swapping a bit too much. This would still be manageable but soon the hypervisor gets really pissed and steals up to 90% of the CPU. So the only solution so far is restarting the docker containers every 12 hours (not great, not terrible). Looking to improve this, Iam now experimenting with ZRAM and swappiness and it seems some benefit can be achieved by using some of the Linux kernel feaures. Is there anything else I should look into?

aesir Aug 14, 2023

Another good reason not to open port 22

https://lemmy.world/post/3182835

Another good reason not to open port 22 - Lemmy.world

In the past two weeks I set up a new VPS, and I run a small experiment. I share the results for those who are curious. Consider that this is a backup server only, meaning that there is no outgoing traffic unless a backup is actually to be recovered, or as we will see, because of sshd. I initially left the standard “port 22 open to the world” for 4-5 days, I then moved sshd to a different port (still open to the whole world), and finally I closed everything and turned on tailscale. You find a visualization of the resulting egress traffic in the image. Different colors are different areas of the world. Ignore the orange spikes which were my own ssh connections to set up stuff. Main points: * there were about 10 Mb of egress per day due just to sshd answering to scanners. Not to mention the cluttering of access logs. * moving to a non standard port is reasonably sufficient to avoid traffic and log cluttering even without IP restrictions * Tailscale causes a bit of traffic, negligible of course, but continuous.

aesir Jul 20, 2023

It's always DNS, should I complain?

https://lemmy.world/post/1889639

It's always DNS, should I complain? - Lemmy.world

Hi, What to do if the domain name of one of my webserver, that me and some lab members use for work related stuff, is no longer resolved by our university DNS? When I first got reported it I could see no resolution at all while now it resolves to a wrong IP. The site can be normally reached on any other network so there is no problem on my side I think. Should I just wait (now more than 24 hours) or should I try anything? I am entitled to complain to our IT even though the issue is only with this not-really-professional FreeDNS subdomain?

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aesir Jul 16, 2023

Here the answer

I’ve got a hacked pyqt5 script that does this, I doubt it’s what you want. Adding mysql support and eventually want to be able to have something like limited math functions so you can add all the values in a tree for stuff like total cost.

If you find something better I’d be real interested, I really want web and preferably app support.

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aesir Jul 16, 2023

Sorry for the double post that appeared for a while, lemmy was slow/malfunctioning, I deleted the other post and unfortunately by doing so also the answer of @[email protected] sorry.

@InverseParallax - Lemmy.world

aesir Jul 16, 2023

Selfhosted tool for editing data trees

https://lemmy.world/post/1580739

Selfhosted tool for editing data trees - Lemmy.world

Hi, I am looking since a long time for a selfhosted tool that would allow the user to insert and visualize data in a hierarchycal structure (tree). Ideally custom schemas could be defined so that it can be also regarded as a rudimentary noSQL database. I’ve looked at the awesome-selfhosted page high and low for anything similar with no luck. Do you happen to know anything that could work? The best example for the functionality I am looking for is the open source desktop app treeline [https://treeline.bellz.org] Thanks for your inputs,

aesir Jul 16, 2023

Selfhosted tool for editing data trees

https://lemmy.world/post/1580729

Selfhosted tool for editing data trees - Lemmy.world

Hi, I am looking since a long time for a selfhosted tool that would allow the user to insert and visualize data in a hierarchycal structure (tree). Ideally custom schemas could be defined so that it can be also regarded as a rudimentary noSQL database. I’ve looked at the awesome-selfhosted page high and low for anything similar with no luck. Do you happen to know anything that could work? The best example for the functionality I am looking for is the open source desktop app treeline [https://treeline.bellz.org] Thanks for your inputs,

aesir Jun 28, 2023

selfhosting on windows server?

https://lemmy.world/post/743336

selfhosting on windows server? - Lemmy.world

Hi, I can spin up for free a Windows VPS (win server 2016 with graphical interface or win server 2022 core version since it has only 1GB of RAM). The problem is that outside of Linux I have absolutely no experience. I would like to try hosting something also on Windows server just to take away some load from other machines or even just to learn something new. Therefore I have the following questions: *Is there any starting resource for windows selfhosting you can recommend? I would love if a list like the awesome selfhosted existed for services that can run on windows. *Is there anything non-enterprise for which a windows server would provide any advantage over Linux? *Does anyone self hosts on windows server? Can I ask what you use it for? Thanks