Cleaned up and merge other Linux snippit repo

Meged https://git.bprieshof.nl/brammp/linux into ./Linux

Linux/Docs/rffmpeg/README.md

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+This Guide uses NFS for saring the Transcode tmp folder  
+This tool expects the media folder(s) to be mounted/located at same location as Primary(Jellyfin) server

Linux/Docs/rffmpeg/Setup-Primary.md

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+## Prerequisites:
+* A running jellyfin server on the Primary
+
+## Step 1: Configuring Jellyfin and preparing the server
+
+### Transcode temp folder
+#### Sharing the the local trancode folder
+Make the new trancode folder
+```
+mkdir /var/lib/jellyfin/transcoding-temp
+```
+NFS is the recomend way of sharing this folder, but SMB/CIFS shoud also work
+```
+apt -y install nfs-kernel-server
+echo '/var/lib/jellyfin/transcoding-temp <Network IP>/24(rw,sync,no_subtree_check)' >> /etc/exports 
+systemctl restart nfs-kernel-server
+```
+Set the following setting in jellyfin "Transcode path" in the Playback settings to "/var/lib/jellyfin/transcoding-temp"
+
+#### Useing a existing remote share trancode folder
+Make sure the folder is mounted at"/var/lib/jellyfin/transcoding-temp"  
+Set the following setting in jellyfin "Transcode path" in the Playback settings to "/var/lib/jellyfin/transcoding-temp"
+
+### Jellyfin user
+Generating sshkey pair without password
+```
+sudo -u jellyfin mkdir -p /var/lib/jellyfin/.ssh
+sudo -u jellyfin ssh-keygen -t rsa -f /var/lib/jellyfin/.ssh/id_rsa
+```
+Set the jellyfin user to login as bash in /etc/passwd
+
+## Step 2: Install slave/render servers
+
+### Getting  info
+Run `cat /etc/passwd | grep jellyfin:` to get user info, i will refer to it as `<JelUser>`  
+Run `cat /etc/group | grep jellyfin:`, to get group info, i will refer to it as `<JelGroup>`  
+Run `cat /var/lib/jellyfin/.ssh/id_rsa.pub` To get ssh-key for sending commands , i will refer to it as `<PrimaryPubKey>`  
+Get the ip of the Primary, i will refer to it as `<PrimaryIP>`  
+
+### Installing on the remote slave
+Use the info you collected en follow "Slave-install.md" 
+```
+sudo -u jellyfin ssh -i /var/lib/jellyfin/.ssh/id_rsa jellyfin@<SlaveIP>
+```
+When connected to the Primary exit the session with the slave server  
+Repeat these steps for all slave server
+
+### Adding local system as slave
+```
+echo 'ssh-rsa <PrimaryPubKey>' | sudo -u jellyfin tee /var/lib/jellyfin/.ssh/authorized_keys
+sudo -u jellyfin ssh -i /var/lib/jellyfin/.ssh/id_rsa jellyfin@localhost
+```
+
+## Step 3: Installing rffmpeg
+```
+mkdir /etc/rffmpeg /opt/rffmpeg
+wget https://raw.githubusercontent.com/joshuaboniface/rffmpeg/master/rffmpeg.yml.sample -O /etc/rffmpeg/rffmpeg.yml
+wget https://raw.githubusercontent.com/joshuaboniface/rffmpeg/master/rffmpeg -O /opt/rffmpeg/rffmpeg.py
+ln -s /usr/local/bin/rffmpeg.py /opt/rffmpeg/ffmpeg
+ln -s /usr/local/bin/rffmpeg.py /opt/rffmpeg/ffprobe
+```
+## Step 3: Configuring rffmpeg
+Add to the host section of /etc/rffmpeg/rffmpeg.yml
+Example of the section in the config file
+```
+remote:
+    # A YAML list of remote hosts to connect to
+    hosts:
+        - 192.168.1.2
+        - 192.168.1.3
+```
+if you also want the local system to render add localhost or 127.0.0.1
+
+
+## Step 4: Set jellyfin to use rffmpeg
+Set the following setting in jellyfin "FFmpeg path" in the Playback settings to "/opt/rffmpeg/ffmpeg"
+
+## Done

Linux/Docs/rffmpeg/Setup-Worker.md

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+## Prerequisites:
+* You set up the Primary following Primary-Install.md and have the information reddy
+* A Clean install of ubuntu linux with ssh-server enabled
+* The media folder accessible on the same location as the jellyfin server
+
+## Step 1: Setting up the user
+```
+mkdir -p /var/lib/jellyfin/.ssh
+echo "<JelUser>" >> /etc/passwd
+echo "<JelGroup>" >> /etc/group
+echo "jellyfin:*:17928:0:99999:7:::" >> /etc/shadow
+```
+Reboot the system just to make sure changes are piked up
+
+```
+echo '<PrimaryPubKey>' >> /var/lib/jellyfin/.ssh/authorized_keys
+chmod 755 -R /var/lib/jellyfin/
+chown -R jellyfin:jellyfin /var/lib/jellyfin/
+```
+
+## Step 2: setting up the Transcode temp folder
+if you are not using NFS make sure the folder is mounted to "/var/lib/jellyfin/transcoding-temp" and skip the rest of step 2
+
+### Setting up NFS Client
+```
+apt install nfs-common -y
+mkdir -p /var/lib/jellyfin/transcoding-temp
+chmod 777 /var/lib/jellyfin/transcoding-temp
+echo '<PrimaryIP>:/var/lib/jellyfin/transcoding-temp /var/lib/jellyfin/transcoding-temp nfs defaults,vers=3,sync 0 0' >> /etc/fstab
+sudo mount -a
+```
+
+## Step 3: Install the jellyfin version of ffmpeg
+```
+apt install apt-transport-https -y
+add-apt-repository universe -y
+wget -O - https://repo.jellyfin.org/ubuntu/jellyfin_team.gpg.key | sudo apt-key add -
+echo "deb [arch=$( dpkg --print-architecture )] https://repo.jellyfin.org/ubuntu $( lsb_release -c -s ) main" >> /etc/apt/sources.list.d/jellyfin.list
+apt update
+apt install jellyfin-ffmpeg -y
+```
+## Done
+Continue reading "Primary-Install.md"