Sudoers Security Audit: Finding NOPASSWD Entries and Privilege Escalation Risks
The sudoers file is the single most important text file on a Linux server. A misconfigured rule is the most common path ...
Security & Hardening
Linux security, firewall configuration, and system hardening guides
Linux User Session Management: Active Sessions, Idle Detection, and TTY Monitoring
Managing user sessions is a critical security and operational task. Knowing who is logged in, what they are doing, and h...
Kernel Module & Modprobe Security Check: Linux Guide
Check loaded kernel modules, blacklists, and modprobe config with dargslan-modprobe-check CLI tool....
lsof Open Files & Ports Audit: Linux Security Guide
Audit open files, listening ports, and network connections with dargslan-lsof-audit CLI tool....
How to Monitor Linux RAID Arrays: Complete mdadm Health Check Guide
RAID (Redundant Array of Independent Disks) provides data redundancy and performance improvements for Linux servers. How...
AppArmor Profile Security Check: Ubuntu/Debian Guide
Check AppArmor profiles, enforcement modes, and violations with dargslan-apparmor-check CLI tool....
Linux Login Tracking: SSH Session Monitoring and Brute Force Detection
Monitoring login activity is a fundamental security practice. Every SSH session, failed authentication attempt, and susp...
Linux Sysctl Audit: Kernel Parameter Security Hardening and Network Tuning
A periodic sysctl audit catches the slow drift that turns a hardened server into an unhardened one. Over months, distrib...
PAM Authentication Audit: Securing the Linux Login Stack
PAM controls how users authenticate on Linux. A misconfigured PAM stack can lock out legitimate users or leave the door ...