Blogs

Prusa Mini+ WiFi and virtual USB

What? The Prusa Mini+ has a problem: It has no WiFi. Also the software does not support any wifi module until now - that feature is planned, but not implemented. Additionally the web interface is, let’s say, not really working, as the printer struggles with serving the static contents (like .css and .js), which are required to render the site. This issue is also known since release 4.3.0 but also not resolved (#1285).

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Maintenance 2021.07.22 - 2021.07.22

Incoming maintenance! Hey, little heads up regarding a server maintenance - the expected downtimes of the server and all of my services are: 2021.07.22 00:00 - 2021.07.22 04:00 That’s nice, but… …what will be changed? A SSD in the VM-RAID-5 array failed and must be replaced - when I’m on it I’ll also replace all SSDs of it and migrate the old data (256GB->2TB) Please note, that after that timeframe some services may not work properly and therefore do not hesitate to contact me if any problem persists too long (not everything is monitored from my backend).

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Maintenance 2021.07.03 - 2021.07.03

Incoming maintenance! Hey, little heads up regarding a server maintenance - the expected downtimes of the server and all of my services are: 2021.07.03 12:00 - 2021.07.03 12:30 That’s nice, but… …what will be changed? Root server update reboot to Debian 10.10 Please note, that after that timeframe some services may not work properly and therefore do not hesitate to contact me if any problem persists too long (not everything is monitored from my backend).

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Maintenance 2021.05.22 - 2021.05.22

Incoming maintenance! Hey, little heads up regarding a server maintenance - the expected downtimes of the server and all of my services are: 2021.05.22 02:00 - 2021.05.22 3:00 That’s nice, but… …what will be changed? UPS battery replacement, as they have finally failed. Install a SSD mounting bracket for stability Please note, that after that timeframe some services may not work properly and therefore do not hesitate to contact me if any problem persists too long (not everything is monitored from my backend).

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Maintenance 2021.05.16 - 2021.05.16

Incoming maintenance! Hey, little heads up regarding a server maintenance - the expected downtimes of the server and all of my services are: 2021.05.16 20:00 - 2021.05.16 23:00 That’s nice, but… …what will be changed? An SSD failed this morning and must be replaced soon - current operation is not (yet) affected A new power cable for the HDDs will be installed Please note, that after that timeframe some services may not work properly and therefore do not hesitate to contact me if any problem persists too long (not everything is monitored from my backend).

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Incident report from 2021.04.29

Something went wrong! As first: Sorry. As you can maybe imagine, this should not happen! As part of further improving the stability of my systems I post this incident report. This is a more in-depth analysis of the respective incident. It should give you an overview of what went how wrong. Maybe you can learn from it or at least understand how such thing could happen in the first place.

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Maintenance 2021.05.01 - 2021.05.03

Incoming maintenance! Hey, little heads up regarding a server maintenance - the expected downtimes of the server and all of my services are: 2021.05.01 10:00 - 2021.05.03 10:00 That’s nice, but… …what will be changed? The server gets transferred into a new case Install new fans Relocate storage disks Server room gets better cooling Updates. Yes, they also exist on Linux. Please note, that after that timeframe some services may not work properly and therefore do not hesitate to contact me if any problem persists too long (not everything is monitored from my backend).

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Maintenance RSS Feed

What’s that?! Okay, in the recent years I’ve become a service provider to more and more people (which is fine by me), but when I need to do maintenance to my server I now have to contact all of them. Individually. Using their preferred way of communication. Me, contacting all of you - visual representation only, not actual footage. As you may imagine, this is sort of a pain in the b*tt - especially when I need to move the maintenance window or may want to report about outages… So here is my solution: As I already have my website on which I publish maintenance notes and also already render the needed RSS feeds - why not use these?

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Kernel Panic by SCSI

I’ve notices some kernel panics on one of my vms when ever any other vm was doing some more cpu intensive work. It seemed there was no reason, as there was no unusual ram usage or vm-host events! So I ignored it for a while until I was finally able to trigger it by using one of my own services - here is a little record of the crash (just in case of further reference):

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Maintenance 2021.02.06 - 2021.02.07

Incoming maintenance! Hey, little heads up regarding a huge server maintenance: Due the fact that I have to physically relocate the server - I hereby announce the expected downtimes of the server and all of my services: 2021.02.06 10:00 - 2021.02.07 23:00 Please note, that after that timeframe some services may not work properly and therefore do not hesitate to contact me if any problem persists too long (not everything is automatically monitored from my backends).

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Maintenance 2020.09.24 - 2020.09.26

Hey, little heads up regarding a huge server maintenance: Due the fact that I’m replacing the serer hardware - I hereby announce the expected downtimes of the server and all of my services: 2020.09.24 13:00 - 2020.09.26 08:00 Please note, that after that timeframe some services may not work properly and therefore do not hesitate to contact me if any problem persists too long (not everything is automatically monitored from my backends).

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Star Trek and Orville

Some actors known from “Star Trek” I noticed inside “The Orville”: Robert Picardo: Ildis_Kitan / The Doctor Timm Russ: Dr. Sherman / Mr. Tuvok Marina Sirtis: Schoolteacher / Deanna Troi John Billingsley: Cambis Borrin / Dr. Phlox Penny Johnson: Claire Finn / Kasidy Yates-Sisko Brent Spiner: Sounds familar? / Lt. Cmdr. Data

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Crispy Olive Bread Slices

Ingredients 120ml Olive oil 40g Garlic powder Some Pepper 4x White bread slices Assembly for(breadSlice of bread) { toast = Toaster.toast(breadSlice); paste = mix(oil, garlic powder, pepper); result = spread(paste, toast); while(result.temperature > warm) wait(); }

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Vanillesauce / Pudding á la Simon

Ingredients 500ml Milk 3x Spoon starch 3x Spoon sugar (+1 spoon for pudding) 4x Drops butter-vanilla flavor (may mix 1:1 with rum flavor) Assembly pot.insert(mix(milk, starch, sugar, flavor)); Stove.insert(pot); Stove.heat(pot, 100%); while(pot.content.stateOfAggregation == fluid) stir(pot.content); Stove.heat(pot, 0%); while(pot.content.temperature > cold) wait();

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SQLite to MariaDB Migration of Solder

What happended? Well, quick and simple: I needed to migrate my Solder service for the Technic Launcher to an other database backend for several reasons. One main reason was, that the current hoster of it planned to shutdown some deprecated PHP versions - but Solder does not support the sqlite database for newer PHP versions anymore. So I needed to switch the database solution (without loosing too much data, because the instance houses several hundert modification at the time) right now.

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Maintenance 2020.04.03 - 2020.04.05

Hey, little heads up regarding a huge server maintenance: Due the fact that I have to move the server - I hereby announce the expected downtimes of the server and all of my services: 2020.04.03 08:00 - 2020.04.05 19:00 Please note, that after that timeframe some services may not work properly and therefore do not hesitate to contact me if any problem persists too long (not everything is automatically monitored from my backends).

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