Debian
Protect GRUB with Password on Linux
Physical access to a Linux machine is game over unless the bootloader stops an attacker from dropping into…
Category
Security
Linux Tutorials
Install Kernel Headers on Kali Linux
Kernel headers are what you install when you need to compile something that plugs into the running kernel.…
Ansible
Ansible Vault: Encrypting Secrets and Passwords
Sooner or later, every Ansible project hits the same wall: database passwords sitting in plain YAML, API keys…
Containers
Kubernetes RBAC: Roles, ClusterRoles, and ServiceAccounts for Production
Every pod in your cluster runs with a ServiceAccount. If you haven’t configured RBAC, that ServiceAccount can do…
Databases
PostgreSQL and MariaDB Backup with Point-in-Time Recovery
File-level backups are useless for databases. If you tar a running PostgreSQL data directory, you get a corrupted…
How To
Bash Script To Automate Linux Directories Backups
A well-written bash script covers 90% of Linux backup needs without installing anything. tar, gzip, and a systemd…
How To
Borg vs Restic vs Kopia: Backup Tools Benchmarked
Three backup tools dominate the open-source Linux backup space: BorgBackup, Restic, and Kopia. All three offer deduplication and…
How To
Production rsync Backup with Systemd Timers on Linux
rsync is the most widely deployed file synchronization tool on Linux, and for good reason. It handles incremental…
How To
Restic Backup to S3-Compatible Storage on Linux
Restic takes a different approach to backups. Every piece of data is encrypted on the client before it…
How To
Set Up Bare Metal Disaster Recovery with ReaR on Linux
Most backup guides skip the part that actually matters: the restore. They show you how to tar your…
How To
Configure RDP, SSH, and VNC Connections in Apache Guacamole
Getting Apache Guacamole installed is only half the job. The real value comes when you start connecting it…
How To
Best Open Source Self-Hosted Remote Desktop Tools
TeamViewer changed its licensing again. AnyDesk got breached. If you run infrastructure for a living, you already know…