🛡️ TryHackMe

🐧 Linux Fundamentals Part 1 Introduction A Bit of Background on Linux Interacting With Your First Linux Machine (In-Browser) Running Your First few Commands Interacting With the File-system! Searching for Files An Introduction to Shell Operators 🐧 Linux Fundamentals Part 2 Introduction Accessing Your Linux Machine Using SSH (Deploy) Introduction to Flags and Switches File-system Interaction Continued Permissions 101 Common Directories 🐧 Linux Fundamentals Part 3 Deploy Your Linux Machine Terminal Text Editors General/Useful Utilities Processes 101 Maintaining Your System: Automation Maintaining Your System: Package Management Maintaining Your System: Logs 📝 Notes 🐧 Linux Fundamentals Part 1 Accessing Your Linux Machine Using SSH (Deploy) ssh tryhackme@MACHINE_IP Introduction to Flags and Switches ls -a, ls –help, man, -h (human-readable) File-system Interaction Continued touch, mkdir, cp, mv, rm, file Permissions 101 ls -lh, read, write, execute, su, Common Directories /etc, /var, /root, /tmp Conclusions and Summaries 🐧 Linux Fundamentals Part 2 Introduction Accessing Your Linux Machine Using SSH (Deploy) practice exercises 🐧 Linux Fundamentals Part 3 Deploy Your Linux Machine Terminal Text Editors nano, vim General/Useful Utilities wget, cp, scp, Processes 101 ps, ps aux, kill, SIGTERM, SIGKILL, SIGSTOP Maintaining Your System: Automation crontab require 6 specific values (MIN, HOUR, DOM, MON, DOW, CMD) 0 *12 * * * cp -R /home/cmnatic/Documents /var/backups/ Maintaining Your System: Package Management Repositories (Adding and Removing) apt, dpkg, Maintaining Your System: Logs /var/log, access log, error log Conclusions & Summaries A little extra info This is just an important additional note, it wasn’t included in the curriculum. The next command is very rarely needed, but it may be needed. ...

Introduction To Cyber Security Offensive Security Intro Defensive Security Intro Careers in Cyber 📝 Notes Offensive Security Intro Preventing and detecting intrusions (Blue Team) Documenting and managing assets User cyber security awareness Updating and patching systems Setting up preventative security devices Setting up logging and monitoring devices Defensive Security Intro Security Operations Center (SOC) Network intrusions Policy violations Unauthorized activity Vulnerabilities Threat Intelligence Gathering information about potential adversaries Digital Forensics and Incident Response (DFIR) Digital Forensics (file system analyzing, system memory, system logs, network logs) Incident Response (preparation, detection analysis, containment, eradication and recovery) Post-Incident activity Malware Analysis (viruses, trojan horses and ransomware,static and dynamic analysis) Simulating a SIEM Careers in Cyber Security Analyst Security Engineer Incident Responder Digital Forensics Examiner Malware Analyst Penetration Tester Red Teamer 🐧 Conclusions These introductory rooms were highly valuable, even with my prior IT background. They offered a clear and practical overview of both offensive and defensive security concepts, helping me better understand the mindset of ethical hackers and the critical functions of Blue Team roles. Exploring SOC operations, DFIR, and threat intelligence deepened my appreciation for how complex and structured defensive strategies are in real-world environments. This content helped me connect my existing knowledge with key cybersecurity principles and career directions. ...