Full Disk Encryption with LUKS and TPM2 on Linux
LUKS full disk encryption protects your data at rest, and pairing it with TPM2 allows passwordless unlocking on trusted hardware. Walk through the full setup from scratch.
Hardening Your SSH Server: Beyond Password Authentication
A default SSH configuration is often the weakest point in a Linux server's security. This guide covers key‑based authentication, fail2ban, port knocking, and essential SSHD configu...
Writing Robust Bash Scripts: Error Handling and Best Practices
Write Bash scripts that fail safely: strict mode, quoting, ERR and EXIT traps, temp files, argument parsing, locking, and ShellCheck, with tested examples.