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add selfhosting tutorials
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kvm/index.md
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kvm/index.md
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# Multiple kvm monitors Setup
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## **Initial Setup**
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First configure the VM in virt-manager:
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sudo pacman -S virt-viewer
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`   
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Then connect to it via remote-viewer after launching it:
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[ 10.0.2.2/24 ] [ nowhere ] [VAULT/ISOs/whonix]
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→ remote-viewer spice://localhost:5900
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And that's it! You are now able to view KVMs via multiple screens. And that is otherwise impossible without specifically doing a gpu passthrough for just one VM.
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## **CLipboard Setup**
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As seen [here](https://askubuntu.com/questions/858649/how-can-i-copypaste-from-the-host-to-a-kvm-guest), we can install spice-guest-tools-latest.exe on the win10 VM [spice-guest-tools-latest.exe](https://www.spice-space.org/download/windows/spice-guest-tools/spice-guest-tools-latest.exe), after installing it on a win10 host, you will be able to copy and paste to and from the QEMU VM. (via virt-manager), however for linux VMs you can just install the **spice-vdagent** package:
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if you want the virtio display drivers, follow the proxmox tutorial for it: [here](https://pve.proxmox.com/wiki/Windows_VirtIO_Drivers), you can download the latest virtio drivers [here](https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stable-virtio/virtio-win.iso)
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sudo apt install spice-vdagent -y
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sudo reboot now
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With this setup for instance, you can copy to and from a qemu VM A and B, and to the host aswell.
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If you experience any crackling sound on a debian VM (wether through the default virt-manager window or through a passthrough USB headset device do the following:
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vim /etc/pulse/daemon.conf
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[...]
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default-sample-rate = 48000
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[...]
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:wq
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kill -9 $(pidof pulseaudio)
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pulseaudio
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You can also install cockpit to manage your KVMs remotely:
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apt install cockpit cockpit-machines -y
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And make it easier to spin up vms anywhere in the system by not letting it use SELinux:
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[ 192.168.0.50/24 ] [ /dev/pts/1 ] [lib/libvirt/images]
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→ cat /etc/libvirt/qemu.conf | grep none | grep security_driver
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# value of security_driver cannot contain "dac". The value "none" is
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security_driver = "none"
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[ 192.168.0.50/24 ] [ /dev/pts/1 ] [/etc/cockpit]
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→ cat cockpit.conf
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[WebService]
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Origins = https://pve2.nowhere.moe wss://pve2.nowhere.moe https://192.168.0.50:9090 https://pve2backend
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ProtocolHeader = X-Forwarded-Proto
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#with this it should be ready to be put behind a local reverse nginx proxy^
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[ 192.168.0.50/24 ] [ /dev/pts/1 ] [lib/libvirt/images]
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→ systemctl restart libvirtd
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Then put it behind a reverse nginx proxy if you want, and dont forget to make it password protected with a basic auth
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[ 10.8.0.2/24 ] [ home ] [/etc/nginx/sites-available]
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→ cat pve2.nowhere.moe
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upstream pve2backend {
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server 192.168.0.50:9090;
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}
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server {
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listen 80;
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listen [::]:80;
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server_name pve2.nowhere.moe;
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return 301 https://$server_name$request_uri;
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}
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server {
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listen 443 ssl http2;
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listen [::]:443 ssl http2;
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server_name pve2.nowhere.moe;
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ssl_certificate /root/.acme.sh/pve2.nowhere.moe/fullchain.cer;
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ssl_trusted_certificate /root/.acme.sh/pve2.nowhere.moe/pve2.nowhere.moe.cer;
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ssl_certificate_key /root/.acme.sh/pve2.nowhere.moe/pve2.nowhere.moe.key;
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ssl_protocols TLSv1.3 TLSv1.2;
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ssl_ciphers 'TLS13-CHACHA20-POLY1305-SHA256:TLS13-AES-256-GCM-SHA384:TLS13-AES-128-GCM-SHA256:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256';
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ssl_prefer_server_ciphers on;
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ssl_session_cache shared:SSL:10m;
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ssl_session_timeout 10m;
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ssl_session_tickets off;
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ssl_ecdh_curve auto;
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ssl_stapling on;
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ssl_stapling_verify on;
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resolver 80.67.188.188 80.67.169.40 valid=300s;
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resolver_timeout 10s;
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add_header X-XSS-Protection "1; mode=block"; #Cross-site scripting
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add_header X-Frame-Options "SAMEORIGIN" always; #clickjacking
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add_header X-Content-Type-Options nosniff; #MIME-type sniffing
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add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload";
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location / {
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#apt install apache2-utils -y
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#htpasswd -c /etc/nginx/auth/default.htpasswd nothing
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auth_basic "Password protection";
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auth_basic_user_file /etc/nginx/auth/default.htpasswd;
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proxy_pass https://pve2backend;
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proxy_http_version 1.1;
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proxy_set_header Upgrade $http_upgrade;
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proxy_set_header Connection "Upgrade";
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}
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}
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To resize a qcow2 disk do the following:
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[ 192.168.0.50/24 ] [ /dev/pts/1 ] [/media/veracrypt1/VMs]
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→ ls
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debian_template.qcow2 home.qcow2 mc-1.16.5.qcow2
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[ 192.168.0.50/24 ] [ /dev/pts/1 ] [/media/veracrypt1/VMs]
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→ which qemu-img
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/usr/bin/qemu-img
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[ 192.168.0.50/24 ] [ /dev/pts/1 ] [/media/veracrypt1/VMs]
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→ qemu-img resize mc-1.16.5.qcow2 +30G
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Image resized.
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then to resize the root partition you need to boot into a live OS that you mount on the VM,
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MAKE A SNAPSHOT OF THE VM TO BE SAFE
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then use gparted from the live iso to resize the / partition to be +30G
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Then boot in the system again and see that the root partition has changed:
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[ 10.0.2.2/24 ] [ /dev/pts/28 ] [~/Nextcloud/blog]
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→ ssh mclocal2
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Linux debian 6.1.0-11-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.38-4 (2023-08-08) x86_64
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The programs included with the Debian GNU/Linux system are free software;
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the exact distribution terms for each program are described in the
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individual files in /usr/share/doc/*/copyright.
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Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
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permitted by applicable law.
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Last login: Thu Sep 7 18:45:05 2023 from 10.99.99.9
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root@debian:~# dfc
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FILESYSTEM (=) USED FREE (-) %USED AVAILABLE TOTAL MOUNTED ON
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udev [--------------------] 0.0% 3.9G 3.9G /dev
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tmpfs [=-------------------] 0.1% 793.5M 794.1M /run
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/dev/vda1 [===-----------------] 12.3% 59.4G 67.8G /
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tmpfs [--------------------] 0.0% 3.9G 3.9G /dev/shm
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tmpfs [--------------------] 0.0% 5.0M 5.0M /run/lock
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tmpfs [--------------------] 0.0% 794.1M 794.1M /run/user/0
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To have the CPU host-passthrough configuration, you need the following:
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in bios:
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advanced > cpu configuration > Intel virtualisation technology / SMX enabled
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enable IOMMU wherever it is
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then once rebooted
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go in your VM in virt-manager > preferences > edit XML
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then VM > details > CPUs > XML > edit the first line to be "<****domain type="kvm">"
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