arch linux vm – failed to allocate vram
Fehlermeldung: arch linux vm – failed to allocate vram (virtual machine) Lösung: Virt Manager -> Video Settings -> Change QXL to Cirrus
Linux
Webserver, Datenbanken, Mailserver, Verschlüsselung
Unifi Controller Installation
Unifi Controller Installation – How to install your own Virtual Machine with the Ubiquiti Unifi Access Point Webinterface. Ubiquiti Unifi UAP-AC-LITE WLANController VM apt-get install debian-keyring debian-archive-keyring nano /etc/apt/sources.listdeb http://www.ubnt.com/downloads/unifi/debian unifi5 ubiquiti gpg –keyserver hkp://keyserver.ubuntu.com:80 –recv-keys C0A52C50gpg –export C0A52C50 |
Icinga2 Telegram Push Notifications
Tutorial: How to send Icinga2 Push Notifications to the Smartphone Chat App Telegram? 1) Get your chat id 2) Check if you can communicate with your smartphone over the telegram Currently my icinga2 notification is running with pushover.net. I wanted
libvirt disable / delete / remove virbr0
Temporary: virsh net-destroy default After a reboot your virbr0 should appear again
nginx – reverse proxy to apache over ssl/https
How to configure a reverse proxy from nginx to apache2 via https: in your nginx vhost config: location / { proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_pass https://localhost:9002; Then you need to change the apache2 ssl port to 9002 that
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Apache2 – Change HTTPS Port to different number
Change the default https port in the file ports.conf: vim /etc/apache2/ports.conf #No line above for https! like Listen 127.0.0.1:9002 this is wrong <IfModule ssl_module> Listen 9002 </IfModule> <IfModule mod_gnutls.c> Listen 9002 </IfModule> a2enmod ssl configure the new https
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Linux – convert mp4 to ogv
How to convert a mp4 movie to ogv in Linux with ffmpeg. ffmpeg -i inputvideo.mp4 -acodec vorbis -strict -2 -vcodec libtheora outputvideo.ogv
icinga2 pushover notifications to the smartphone
icinga2 – push notifications to your smartphone with pushover Register at https://pushover.net/ iPhone App: https://itunes.apple.com/de/app/pushover-notifications/id506088175?mt=8 Your user key (log in and confirm the email): https://pushover.net/ Your Devices -> iPhone -> Activate Encryption Create a new Application to get your api token key: https://pushover.net/apps Create
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letsencrypt renew automatically with cron
Every three months i must renew my ssl certificates for my subdomains. Because of a lot of subdomains and also different domains it costs a lot of time. So here’s the solution to renew the letsencrypt certificates automatically with cron:
Bildschirminformationen konnten nicht ausgelesen werden
Fehlermeldung unter Ubuntu: Bildschirminformationen konnten nicht ausgelesen werden Lösung apt-get remove –purge gnome-control-center* apt-get install ubuntu-desktop
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