# LinuxPizza

Personal notes and occasional posts

## And also moved over to a tiling windows manager

#### And you are maybe asking – why?

I once bought a keyboard together with my brother for 20 years ago, we saved our money to buy it and we did! Sadly, I do not remember the model or the brand of the keyboard – but atleast I know what it looks like! That was the ONLY keyboard I have ever bought, the rest is just from “piles of trash” mean for recycling.

About 7 years ago, I joined a random mumble channel and out of the blue we started to talk about keyboards. I've always used crappy keyboards in my life (those you find in school, libraries etc) and I did not know anything else.

I threw me back in time to when PC's where much more simpler, a time where the 5 year old me spend in front of Windows 95 and the typical 90's white colored PC, keyboard, mouse, speaker and screen. That color does reminds me of times when I did not understand the world and therefore the world was a much nicer place, for me atleast.

They keyboards where immediately thrown on my wishlist. And I dreamt of the day I could get one. I did not buy it for another 7 years – not because I did not want any, but that I instead prioritized real life stuff instead.

But finally, I did buy it. And after 10 days of waiting for it to ship from Lexington, Kentucky (US) to me here in Sweden I did get it delivered to my work. And I was the only one that was excited!

I unpacked it at work, but I did not leave it there. Because this bad boy is going to be at my desk at home. There is no other place I would place such a gem somewhere else.

As I wrote before, I've only been using crappy keyboard for my entire life, so I guess that I have to adapt to a “new way” of typing.

Here is some pictures of it:

### Day 1

I connected the keyboard to my Trisquel PC and suddenly realized that there is no built-in settings for a keyboard like this in the system. There is only a “Generic 105-key keyboard) and some other brands. I tried to find anything online regarding this keyboard and using it on Linux like inputrc configs, but so far – nothing.

### Day 2

I figure that I need to write a custom .inputdrc file in order to make cool stuff of all the keys. I have already binded some keys to application specific tasks, but I would like to use my “PANIC” button that I bought extra. And I also realized that I dont have any tool for keycap removal...

### Day 3

I just adapted to the keyboard fairly quickly, and I got a little addicted to the clicking of the keys. Some of the F13 – F24 keys has been mapped to application specific tasks, such as controlling the look of the terminalemulator tilda and that works perfect. I also decide that I will move to either i3 or sway, and I realized after 3 minutes that i3 is the only option of those two because Trisquel is not using wayland. So I just followed this guide and installed i3 with gaps (that's something kids like these days).

I do wonder how I will adapt to this layout thou.

### Day 4

I launched i3 for the first time. And immediately started looking for a cheat sheet so I could start using it. I do liked the concept of it, and I will try to use it more and more.

I am starting to get used to the new keyboard, some keys are a little bit bigger than on normal keyboards but that's ok. My wife told me that could hear me from the other side of the apartment when I was typing – and that's not strange because this keyboard is loud, very loud.

The overall look of the keyboard is nice too, with two red buttons (ESC and a PANIC button). I do have some more keys that I want to swap out too but I lack the tools to do it.

Sadly, the Linux specific keys that I bought does not fit. So I guess I have to save that for my next Unicomp.

### Day 5

Well, I've been using this keyboard for 5 days now and I do not regret it that I had to pay $105+$25+$79+$20+$40 (keyboard, keycaps, shipping, PostNord fee, import tax). It is actually one of the most expensive things I personally own (except for the car). The typing experience is great! The noise it does is addicting/awesome and I really LOVE the retro look, especially the white color that was standard when I was a kid. Also, to you that like it – here is video with some typing noises. Enjoy! ### For those who would like to buy the real Model M, You can check out Unicomps website, I used the Keyboard configuration tool to get mine in a Swedish layout (you have to pick Swedish Finnish). ## Mount your Nextcloud account as a catalogue in Linux #### In the last couple of month, I have not been able to sync my pretty huge library in Nextcloud due to a bug that is being ignored in the Nextcloud client. But I still need to sync my files – what to do? It has been a source of frustration to not be able to sync down my files during this fall, so I started to look at other solutions instead, like DavFS2. With DavFS2 you can mount your Nextcloud account like you mount a HDD/SSD ora USB memory – simple! First of all, you need to install the davfs2 package, on debian derivatives such as Ubuntu, MXLinux or PureOS: sudo apt-get install davfs2 On RHEL/CentOS: sudo yum install davfs2 On Fedora: sudo dnf install davfs2 On SuSE: sudo zypper install davfs2 Next, we want to modify the /etc/fstab file so the Nextcloud account will be mounted at boot, just modify the command provided to match your own setup: echo "https://cloud.operationtulip.com/remote.php/webdav/ /mnt/nextcloud davfs _netdev,noauto,user,uid=USER,gid=GROUP 0 0" >> /etc/fstab Also, I do strongly assume that you do not want to enter your login everytime you boot. echo "/mnt/nextcloud NEXTCLOUDUSER NEXTCLOUDPASSWORD" >> /etc/davfs2/sercets Let's finish this with adding your user into the davfs2 group sudo usermod -a -G davfs2 USERNAME Now, you should be able to mount it: mount /mnt/nextcloud ### Optional – encrypt transparently with gocryptfs First, install the gocryptfs package: sudo apt-get install gocryptfs On RHEL/CentOS: sudo yum install gocryptfs On Fedora: sudo dnf install gocryptfs On SuSE: sudo zypper install gocryptfs In this case, we are just going to create a catalogue in the homecatalogue, add is as a “plain” catalogue where the files is going to be shown decrypted for you and mount it against /mnt/nextcloud – so the files is going to be stored encrypted.  mkdir -p ~/nextcloud_encrypted gocryptfs -init /mnt/nextcloud gocryptfs /mnt/nextcloud nextcloud_encrypted  Now, you can create a file in ~/nextcloud_encrypted, and it will show up as encrypted in the /mnt/nextcloud catalogue. Happy sharing! ## 2020 is here, what's next? #### ok, here it goes: the obligatory post that everyone writes in the beginning of a new year. 2019 was a year of progress for Linux.Pizza and growth, it has been fun to curate for the small “platform” and the userbase residing here. 2020 is here, and I'll try to summarize what we hope to achieve during this year: • Build are more robust infrastructure: This is something that we started with last summer with OperationTulip (basically a hosted Nextcloud provider) and we will continue to do so during this year. I (Jonathan) is a part of the OperationTulip team and have contributed with alot of time and hardware into the project, so it is only fair that Linux.Pizza can reside in that environment too! • Get more supporters: One of the blockers of many project is money and that is mostly storage and fees for domain names and such. We have been able to mitigate a big chunk of expenses by hosting our own authorive DNS-environment and getting a room in an already existing email server. As I mentioned in the 2019 recap we have gotten donation that have been covering the cost of operation for month – and we are not able to show enough gratitude for the generosity of the people that has donated to Linux.Pizza – Thank you!! • Spread the word about the Librehosters: Linux.Pizza is a part of the Librehosters – a loose community of people and organizations that hosts and provide ethical and libre services for public use. We would really like to see it grow and more projects that joins the community • Participate in real-life events: Altough I can't attend events like FOSDEM this year, we do hope that we can join the FOSS NORTH event this spring together with the team from OperationTulip. And who knows, we may have stickers for you then? ;) • Linux.Pizza staff: Currently, when I am basically the sole admin of Linux.Pizza. Sure, my wife has full access to the services and will act if something would happend to me, but that's about it. So if you want to help out, or know someone that wants to help out – just contact me on Mastodon or Matrix (@j:matrix.linux.pizza). Well, there is goes. Have a great day everybody! ## Linux.Pizza 2019 recap #### 2019 has been a great year for Linux.Pizza, we have seen hundreds of new users on our Mastodon-instance, thousands of visitors on our trashmail service and hundreds of thousand of machines using our mirror ##### but sadly, due to lack of time and money, I have been forced to close down a few service like Pleroma, Social relay, & Invidious. Linux.Pizza is one of many providers in the librehost network – everyone aims to offer ethical services that focus on privacy and fairness. 2019 has been a year of growth for the network and Linux.Pizza is not excluded. Linux.Pizza was able to achieve the following: 2020 is approaching rapidly, and Linux.Pizza is ready! If you have any suggestions of services that you would like to see, please let us know! We are always exploring ways extend our list of services that is beneficial to our users! ## Loadbalance MySQL/MariaDB with HAProxy In your haproxy.cfg, you should do this: global log /dev/log local0 notice user haproxy group haproxy stats socket /var/run/haproxy.sock mode 660 level admin defaults log global retries 2 timeout connect 3000 timeout server 5000 timeout client 5000 listen galera bind /var/run/mysqld/mysqld.sock mode 666 option mysql-check user HAPROXY balance first server galera1 192.168.20.21:3306 check maxconn 64 server galera2 192.168.20.22:3306 check maxconn 64 server galera3 192.168.20.23:3306 check maxconn 64  And why do I listen on a socket? That is because an application will assume that mysql/mariadb are listening on a socket when you specify “localhost” by default. ## Expanding RAM on a Linux system without rebooting #### This assumes that you are running your Linuxsystem as a virtual server on VMWare, KVM, XEN or AHV. We have been there a couple of times – your application need more RAM. Or just want more RAM in order to have your Minecraft server run smoothly. 1. First of all, add the amount of RAM to your VM via your hypervisor. 2. Second, we need to tell the kernel that there is more RAM available for use, we can do that by using this simple script: for f in /sys/devices/system/memory/memory*/state ; do grep -v -q online$f || continue echo -n "Bringing $f online... " echo online >$f || continue echo OK done 

That's all! You can now verify with your favorite way to check RAM usage.

## Expanding the drive on a live Linux system

#### This assumes that you are running your Linuxsystem as a virtual server on VMWare, KVM, XEN or AHV.

It is quite common – for me atleast – that a busy databaseserver is going to use more and more space. And in most cases it is not always that attractive to have to restart the server and resize it with a LiveCD such as gparted live.

Luckily, there is possible to expand the partitions while your machine is running. I will try to guide you with this step to step guide on how you can successfully proceed with it:

1. First of all, add the storage in you hypervisor.
2. Next, you want to tell the kernel that to rescan the bulk device: echo 1 > /sys/class/block/sda/device/rescan fdisk are now able to “see” the expanded disk, in this case /dev/sda
3. Now, we need to do the actual expansion of the partinion, so we need to “delete” the partion and add it again via fdisk – dont worry, we are not going to write the changes to disk while the partinion is deleted: fdisk /dev/sda
4. Just to make sure, check the partinion by selecting p, if the disk looks like it should, you may continue
5. Delete the partition by pressing d
6. Press n to create a new partinion
7. Press p to chose “Primary Partition”
8. Press 1 to chose the partition number 1
9. Press ENTERtwice
10. And lastly, doublecheck the changes by pressing p, note the difference from the first time you did it. You should see that the partition has been expanded.
11. !The following actions will write the changes to disk! Now, in order to make is real, press w in order to write the changes to disk, you will see a warning about that the partition table has been changed. Do not worry, it is expected.
12. Now, run partprobe (you have to install parted for this to work). If you are using an older kernel, you maybe would need to reboot if the partprobe task did not work.
13. Now, we just need to expand the filesystem itself in order to actually use the newly added space: resize2fs -p /dev/sda1

Verify with df -h

You should be able to see the new size now.

## Adding more CPU-cores without rebooting you Linux-server

#### This assumes that you are running your Linuxsystem as a virtual server on VMWare, KVM, XEN or AHV with CPU Hotplug enabled.

From time to time, I have been in need of extra CPU-power for various reasons. It might be that someone suddenly got alot of traffic to their PHP-based website, or they want to add more containers but loosing the time and uptime that comes with a reboot it not an option.

Luckily, there is solutions for that!

2. Second, we need to tell the kernel that there is more cores available for use, we can do that by using this simple script:

for f in /sys/devices/system/cpu/cpu*/online ; do grep -v -q 0 $f || continue echo -n "Bringing$f online... " echo 1 > \$f || continue echo OK done`

1. Done, you can now verify that you have added more cores to your system.

## A relative small event that defined my life

#### It is almost 18 years since I first came in contact with Linux, and I did not know at all what kind of journey it would take me on.

I was 9 years old at the time, when me and my brother got our first PC. It was an Fujitsu-Siemens with 128MB of RAM, Pentium II 233 MHZ and a HDD with amazing 8GB space. SuSE 7.0 was installed on that machine and we loved it. Although at the time, we only used Linux so we can brag to our friends that “we didn't use Windows”. That part kind of failed because our friends did'nt even know what Windows was and my brother and I thought that was absurd that our friends was so “informed about something so essential in life”.

At school, I loved to just “click around” and find stuff. Schools in the 90's/early 2000 did not consider “security” as something prioritized = more fun for us kids.

Today, I mainly work with Linux and basically almost every hobby that I have has something to do with Linux.

It is amazing how such a small event as getting a PC with Linux could alter the course of my life.

## Gab, and the fediverse

### Why I decided to block gab.[com|ai], and some other thoughts.

##### It has not gone unoticed, but gab – the plattform that champions “free speechs” has joined the fediverse. Why? Because probably (hopefully) they are running out of money.

4th of July, 2019 – gab did enter the fediverse with glory and might. Users loved it and the software was great!

No it was'nt. People hated it and complained everywhere over the extremely bad performance and the unreliable service. I enjoyed the show, it was great because it means that gab is loosing money when the deploy did not work well. gab also uses cloudflare

The funny thing aside for a moment, and lets focus on the dangerous and evil side of gab. Gab claims to be a champion of free speech, sadly this has turned into a harbor of extremist – actual Nazis.

I decided to create an account on the platform to observe it myself. I did not have to scroll much to be greeted with this:

More:

And more: This was presented to me withing the first minute.

So much for the All are welcome slogan.

You maybe wonder – why does a platform allow content that celebrates genocide, fascism , violence, hate, and authoritarian governments and hides it in the free speech bucket? I do not know, I honestly do not know. The founder of gab – Andrew Torba – is even a proclaimed christian. Is'nt christianity supposed to be the opposite of the content that is spreading on gab?

This is why I have suspended gab on my instance. And if you as an admin does it – great! But it would also be great if people could federate with them to be able to ridicule them (or as some people calls it – virtual milk-shaking).

We can't let history repeat itself.

Note: I do publish social.linux.pizza's blocklist here