What Is Lynis? If you manage Linux servers — whether it’s a personal VPS, a homelab VM, or a production system — chances are you’ve wondered: “Is this machine actually secure?” That’s exactly the question Lynis is built to answer. Lynis is a free, open-source security auditing tool for Unix-based systems (Linux, macOS, BSD). OriginallyContinue reading “Lynis: Audit, Harden, and Secure Your Linux Systems Like a Pro”
Tag Archives: Networking
Secure Shell (SSH)
What is SSH? SSH is a cryptographic network protocol used to securely connect to and communicate with remote computers over an unsecured network. What it does: Why Telnet is insecure? Telnet is insecure for one fundamental reason: everything is transmitted as plain text — no encryption, no integrity checking. The main core problems: 1. NoContinue reading “Secure Shell (SSH)”
CCSK Domain 12: Related Technologies & Strategies
12.1 Zero Trust (ZT) 12.2 Artificial Intelligence (AI) Flashcards: https://quizlet.com/in/1125762754/ccsk-domain-12-related-technologies-strategies-flash-cards/?i=4jehw4&x=1jqt
CCSK Domain 11: Incident Response & Resilience
11.1 Incident Response 11.2 Preparation 11.3 Detection & Analysis 11.4 Containment, Eradication & Recovery 11.5 Post-Incident Analysis Flashcards: https://quizlet.com/in/1125762755/ccsk-domain-11-incident-response-resilience-flash-cards/?i=4jehw4&x=1jqt
CCSK Domain 10: Application Security
10.1 Secure Development Lifecycle (SSDLC) 10.2 Architecture’s Role in Secure Cloud Applications 10.3 Identity & Access Management (IAM) and Application Security 10.4 DevOps & DevSecOps 10.4.2 Web Application Firewalls (WAF) & API Gateways Flashcards: https://quizlet.com/in/1125761456/ccsk-domain-10-application-security-flash-cards/?i=4jehw4&x=1qqt
CCSK Domain 9: Data Security
9.1 Primer on Cloud Storage 9.2 Data Security Tools and Techniques 9.3 Cloud Data Encryption at Rest 9.3.2 Cloud Data Key Management Strategies 9.3.3 Data Encryption Recommendations 9.4 Data Security Posture Management (DSPM) 9.5 Object Storage Security 9.6 Data Security for Artificial Intelligence Flashcards: https://quizlet.com/in/1125655369/ccsk-domain-9-data-security-flash-cards/?i=4jehw4&x=1jqt
CCSK Domain 8: Cloud Workload Security
8.1 Introduction to Cloud Workload Security 8.2 Securing Virtual Machines (VMs) 8.3 Securing Containers 8.4 Securing Serverless & FaaS 8.5 Securing AI Workloads Flashcards: https://quizlet.com/in/1125654258/ccsk-domain-8-cloud-workload-security-flash-cards/?i=4jehw4&x=1jqt
Network Terminology
Virtual Local Area Network (VLAN) A VLAN, or Virtual Local Area Network, is a logical segmentation of a physical network allowing multiple groups of devices to be separated into distinct broadcast domains even if they share the same physical infrastructure. In simple words, imagine you have a big school with lots of classrooms and manyContinue reading “Network Terminology”
The Role of NTP Servers in Information Security: Why Accurate Time Matters
In the world of cybersecurity, we often focus on firewalls, intrusion detection systems, encryption algorithms, and endpoint defenses. Yet, one of the most fundamental elements of a secure and reliable IT infrastructure is often overlooked: time synchronization. This is where the Network Time Protocol (NTP) server comes into play. NTP is more than just aContinue reading “The Role of NTP Servers in Information Security: Why Accurate Time Matters”
Pretty Good Privacy (PGP)
Understanding Pretty Good Privacy (PGP) and Its Importance in the Digital Age In our increasingly digital world, the security and privacy of communication have become paramount. With the constant threat of cyberattacks, surveillance, and data breaches, individuals and organizations are looking for reliable ways to protect their sensitive information. One of the most well-regarded toolsContinue reading “Pretty Good Privacy (PGP)”