Cybersecurity & Technology Learning Resources
Guides, security analysis, and technical reports on Linux, embedded hardware, and infosec.
Forwarding System Mail to a Central Mail Server
Redirect system-generated email from multiple GNU/Linux hosts to a single central SMTP server. Set-up lightweight relay-only or full-featured MTAs such as nullmailer, msmtp, Postfix, Exim 4, Sendmail or ssmtp.
Cloudflare Dynamic DNS with ddclient
Set up ddclient as DDNS to update Cloudflare records automatically using an account API Token with the minimum required scopes. Reliable IPv4/IPv6 detection for multi-zone Dynamic DNS.
Encrypted Cloud Mountpoint with rclone
Create an encrypted Google Drive mount using rclone, allowing fast and secure system storage at the cloud. Perfect if your organization has unlimited storage. OAuth client authentication and encrypted remote with suitable VFS cache modes for secure and efficient cloud-storage access.
External QEMU VM Images
Migrate your QEMU VM disk images to an external drive, set-up the libvirt storage pool and resolve virt-manager permission errors.
Gitea Server Setup
Install, configure and harden your own self-hosted git server with Gitea. Secure deployment with MySQL database, HTTPS, system integrated SSH server and backups.
Home Assistant OS MySQL Database Migration
Migrate your Home Assistant OS Database from the default SQLite to a robust MySQL Database, speeding up your load time and keeping all your old history.