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Articles5
Discovering and Removing a Hidden Reverse Shell on an Ubuntu Web Server
The article details the author's discovery of a hidden reverse shell running under the www-data user on their Ubuntu web server, highlighting the unusual outbound traffic that led to the discovery. It provides a step-by-step account of how the issue was identified and resolved, emphasizing the quiet persistence of such threats.
DEV10mo agoA 30-Minute Guide to Hardening Linux Servers After Fresh Install (Ubuntu & Red Hat)
The article provides a step-by-step guide on hardening a Linux server within 30 minutes after a fresh install, covering updates, security configurations, and best practices for Ubuntu and Red Hat systems.
DEV10mo agoUsing AIDE to Detect Unauthorized Changes on Linux and Ubuntu Servers
The article explains how the author uses AIDE (Advanced Intrusion Detection Environment) to detect unauthorized changes on Linux and Ubuntu servers, emphasizing its importance in preventing silent threats like backdoors or altered config files. The guide provides a practical walkthrough of setting up and using AIDE for security monitoring.
DEV10mo agoHow a Misconfigured Linux Service Almost Allowed a Security Breach
The article details a cybersecurity incident where a misconfigured Linux service nearly allowed attackers to infiltrate a server. The author shares their experience of identifying the issue through unusual CPU usage and provides insights on how to prevent similar vulnerabilities.
DEV10mo agoLinux and Ubuntu: Essential Tools for Modern Cybersecurity
The article discusses the critical role of Linux, particularly Ubuntu, in addressing modern cybersecurity challenges. It highlights the necessity of adopting secure and flexible operating systems to combat evolving cyber threats.
DEV10mo ago