The Linuxfabrik Monitoring Plugins integrate LibreNMS into Icinga: when LibreNMS raises an alert, Icinga picks it up.
Nextcloud offers three layers of encryption: transport encryption (TLS), Server-Side Encryption (SSE) and End-to-End Encryption (E2EE). Which one fits when, and what we run at Linuxfabrik.
No matter how modern and redundant the data centre: in addition to the host's backups, customers should always run their own offsite backups.