urls

https://forum.kuketz-blog.de/viewtopic.php?t=3067
https://blog.butenostfreesen.de/2018/10/11/Fritz-Box-Monitoring-mit-Grafana-und-Raspberry/
https://www.howtoforge.com/perfect-server-debian-10-buster-apache-bind-dovecot-ispconfig-3-1/
https://github.com/stevejenkins/pihole-cloudsync
https://www.fail2ban.org/wiki/index.php/MANUAL_0_8
https://discourse.pi-hole.net/t/why-do-some-sites-take-forever-to-load-when-using-pi-hole-for-versions-v4-0/3654/7
https://www.youtube.com/watch?v=PuK_FNK674s&feature=youtu.be
https://www.tweaking4all.com/hardware/raspberry-pi/applepi-baker-v2/
https://www.tutonaut.de/
https://tecadmin.net/enable-disable-modules-in-apache2-on-ubuntu-linuxmint/
https://www.einplatinencomputer.com/raspberry-pi-echtzeit-ueberwachung-mit-rpi-monitor/
https://guides.wp-bullet.com/auto-whitelist-multiple-dynamic-dns-addresses-for-nginx-security/
https://www.stetic.com/developer/nginx-eine-echte-apache-alternative/
https://linuxconfig.org/how-to-install-nextcloud-on-debian-10-buster-linux
https://www.c-rieger.de/nextcloud-upgrade-mittels-cli/