[
  {
    "slug": "wifi-vs-internet-speed-find-the-bottleneck",
    "title": "Wi-Fi or internet? Find the slowest link in a download",
    "topic": "System Administration",
    "published": "2026-10-02T15:52:00.000Z",
    "excerpt": "Move three speed sliders to find a download’s bottleneck. Learn why faster Wi-Fi may not help, and why Mb/s and MB/s are different."
  },
  {
    "slug": "sync-vs-backup-restore-a-deleted-file",
    "title": "Is sync a backup? Try restoring a pretend deleted file",
    "topic": "System Administration",
    "published": "2026-10-02T15:51:00.000Z",
    "excerpt": "Delete a pretend photo, sync its mirror, then restore an earlier snapshot. Understand what a backup must let you recover—and why version history matters."
  },
  {
    "slug": "read-edit-admin-permissions-explained",
    "title": "Read, edit, or admin? Permissions explained with a shared notebook",
    "topic": "Cybersecurity",
    "published": "2026-10-02T15:50:00.000Z",
    "excerpt": "Choose a role and try an action on a pretend team notebook. See least privilege in practice and why signing in does not authorize everything."
  },
  {
    "slug": "why-mfa-helps-when-a-password-is-stolen",
    "title": "Why does MFA help when a password is stolen?",
    "topic": "Cybersecurity",
    "published": "2026-10-02T15:49:00.000Z",
    "excerpt": "Give a pretend visitor the correct password and see whether they can sign in. Understand independent factors, recovery, and the limits of MFA."
  },
  {
    "slug": "https-explained-a-padlock-is-not-a-trust-guarantee",
    "title": "What does HTTPS protect? A padlock is not a trust guarantee",
    "topic": "Cybersecurity",
    "published": "2026-10-02T15:48:00.000Z",
    "excerpt": "Try a protected connection to a lookalike site. Learn why HTTPS protects transport but does not prove that a website is honest."
  },
  {
    "slug": "serverless-explained-who-runs-the-servers",
    "title": "What does serverless mean? Somebody still runs the servers",
    "topic": "Cloud Computing",
    "published": "2026-10-02T15:47:00.000Z",
    "excerpt": "Move a traffic slider to compare fixed capacity with managed functions. See what the provider handles, what you still own, and why serverless is not automatically free."
  },
  {
    "slug": "why-a-website-still-shows-an-old-page-cache-explained",
    "title": "Why is this page still old? Web caching explained",
    "topic": "Cloud Computing",
    "published": "2026-10-02T15:46:00.000Z",
    "excerpt": "Change a pretend page and watch its saved copy stay behind. Learn freshness, revalidation, and why refreshing is not always the same as fetching the original."
  },
  {
    "slug": "dns-explained-how-a-website-finds-its-address",
    "title": "What is DNS? Follow a website name to its address",
    "topic": "Cloud Computing",
    "published": "2026-10-02T15:45:00.000Z",
    "excerpt": "A website name is not a page. Follow a browser’s journey, see what DNS actually does, and learn why a DNS change can take time to appear."
  },
  {
    "slug": "group-policy-pilot-ou-rollback-checklist",
    "title": "What is Group Policy? A tiny office explains it",
    "topic": "System Administration",
    "published": "2026-10-02T03:38:04.000Z",
    "excerpt": "How do office computers all get the same rules? Meet three pretend laptops and try changing one simple setting."
  },
  {
    "slug": "server-side-turnstile-validation-checklist",
    "title": "Why websites ask “Are you human?”",
    "topic": "Cybersecurity",
    "published": "2026-10-02T03:38:03.000Z",
    "excerpt": "A friendly look at those little website checks—with pictures and a pretend form you can try. No coding needed."
  },
  {
    "slug": "passive-recon-through-exiftool-social-engineering-and-wigle",
    "title": "Passive Recon through ExifTool, Social Engineering and WiGLE",
    "topic": "Cybersecurity",
    "published": "2023-04-01T14:29:09.000Z",
    "excerpt": "ExifTool is an application for reading and modifying multimedia files such as images."
  },
  {
    "slug": "search-engine-indexing-seo-and-search-techniques",
    "title": "Search Engine Indexing, SEO and Search Techniques",
    "topic": "System Administration",
    "published": "2023-03-30T15:26:47.000Z",
    "excerpt": "This Medium write-up uses a TryHackMe room and a WordPress Content Management System (CMS) to explore search engine indexing, SEO mechanism and the use of operators in search queries to locate specific content such as open source…"
  },
  {
    "slug": "understanding-active-directory-ad-and-group-policy",
    "title": "Understanding Active Directory (AD) and Group Policy",
    "topic": "System Administration",
    "published": "2023-03-30T01:00:27.000Z",
    "excerpt": "Active Directory (AD) provides centralized authentication and authorization of users and computers on a network."
  },
  {
    "slug": "investigate-a-compromised-exchange-server-using-siem-and-sysmon",
    "title": "Investigate a Compromised Exchange Server using SIEM and Sysmon",
    "topic": "Cybersecurity",
    "published": "2023-03-12T17:43:15.000Z",
    "excerpt": "Microsoft Exchange Server is commonly deployed in an enterprise, offering email, contact management, calendar, scheduling services, and more."
  },
  {
    "slug": "investigate-attack-patterns-using-siem-sysmon-utility-and-mitre-att-ck",
    "title": "Investigate Attack Patterns using SIEM, Sysmon Utility and MITRE ATT&CK",
    "topic": "Cybersecurity",
    "published": "2023-03-12T04:33:06.000Z",
    "excerpt": "In the “ New Hire Old Artifacts ” TryHackMe room, we can investigate a cyber incident using SIEM software — Splunk."
  },
  {
    "slug": "investigate-cyber-attacks-through-osint",
    "title": "Investigate Cyber Attacks through OSINT",
    "topic": "Cybersecurity",
    "published": "2023-03-10T19:33:53.000Z",
    "excerpt": "“Juicy Details” TryHackMe Room simulates the aftermath of a cyber-attack where a SOC analyst is tasked with analyzing the attack patterns from log files."
  },
  {
    "slug": "configure-ubiquiti-l2tp-vpn-and-split-tunneling",
    "title": "Configure Ubiquiti L2TP VPN and Split Tunneling",
    "topic": "System Administration",
    "published": "2023-03-10T12:00:00.000Z",
    "excerpt": "A series of Ubiquiti routers can act as a VPN server, which are also known as UniFi Gateway."
  },
  {
    "slug": "using-threat-intelligence-tools-to-investigate-cyber-attacks",
    "title": "Using Threat Intelligence Tools to Investigate Cyber Attacks",
    "topic": "Cybersecurity",
    "published": "2023-02-26T08:57:17.000Z",
    "excerpt": "TryHackMe Room: https://tryhackme.com/room/threatinteltools Threat intelligence tools allow us cyber security professionals to analyze security incidents."
  },
  {
    "slug": "cryptography-concepts-and-examples",
    "title": "Cryptography: Concepts and Examples",
    "topic": "Cybersecurity",
    "published": "2023-02-23T12:00:00.000Z",
    "excerpt": "Cryptography involves many topics and theories."
  },
  {
    "slug": "vulnerability-management-with-nmap-and-netdiscover",
    "title": "Vulnerability Management with Nmap and Netdiscover",
    "topic": "Cybersecurity",
    "published": "2023-02-20T12:00:00.000Z",
    "excerpt": "Nmap is a network scanning tool often used for vulnerability management."
  },
  {
    "slug": "an-introduction-to-using-splunk-for-malware-analysis",
    "title": "An Introduction to using Splunk for Malware Analysis",
    "topic": "Cybersecurity",
    "published": "2023-02-13T03:03:30.000Z",
    "excerpt": "Splunk is one of the most widely used SIEM tools in enterprises."
  },
  {
    "slug": "an-overview-of-siem-and-log-management",
    "title": "An Overview of SIEM and Log Management",
    "topic": "Cybersecurity",
    "published": "2023-02-12T22:20:14.000Z",
    "excerpt": "Security Information and Event Management system (SIEM) software offers centralized log management and analytics."
  },
  {
    "slug": "threat-management-concepts-and-examples",
    "title": "Threat Management: Concepts and Examples",
    "topic": "Cybersecurity",
    "published": "2023-02-06T12:00:00.000Z",
    "excerpt": "Threat management helps organizations manage risks and comply with industry standards and regulations."
  },
  {
    "slug": "the-diamond-model-a-methodology-for-analyzing-cyber-attacks",
    "title": "The Diamond Model — A Methodology for Analyzing Cyber-Attacks",
    "topic": "Cybersecurity",
    "published": "2023-01-19T06:39:28.000Z",
    "excerpt": "The Diamond Model — A Methodology for Analyzing Cyber-Attacks The Diamond Model helps identify attributes of an intrusion."
  },
  {
    "slug": "how-to-protect-and-encrypt-files-using-veracrypt",
    "title": "How to Protect and Encrypt Files using VeraCrypt",
    "topic": "Cybersecurity",
    "published": "2022-08-10T12:00:00.000Z",
    "excerpt": "Using VeraCrypt, you can easily protect important files."
  },
  {
    "slug": "how-to-perform-network-speed-test-with-iperf3",
    "title": "How to Perform Network Speed Test with iPerf3",
    "topic": "System Administration",
    "published": "2022-06-27T12:00:00.000Z",
    "excerpt": "iPerf3 helps you perform a network speed test."
  },
  {
    "slug": "configure-cloudflare-zero-trust-for-web-applications",
    "title": "Configure Cloudflare Zero Trust for Web Applications",
    "topic": "Cybersecurity",
    "published": "2022-03-06T12:00:00.000Z",
    "excerpt": "Attackers often target the login page of a web application."
  },
  {
    "slug": "vmware-tutorial-install-and-configure-vcenter-server-7",
    "title": "VMware Tutorial: Install and Configure vCenter Server 7",
    "topic": "Cloud Computing",
    "published": "2022-02-03T12:00:00.000Z",
    "excerpt": "VMware vCenter provides centralized management capabilities for ESXi hosts."
  },
  {
    "slug": "vmware-tutorial-configure-esxi-host-management-network",
    "title": "VMware Tutorial: Configure ESXi Host Management Network",
    "topic": "Cloud Computing",
    "published": "2022-01-29T12:00:00.000Z",
    "excerpt": "VMware ESXi Management Network provides traffic between an ESXi host and clients."
  },
  {
    "slug": "vmware-tutorial-install-esxi-hypervisor",
    "title": "VMware Tutorial: Install ESXi Hypervisor",
    "topic": "Cloud Computing",
    "published": "2022-01-23T12:00:00.000Z",
    "excerpt": "A hypervisor is software that allows a server to run multiple operating systems."
  },
  {
    "slug": "common-linux-commands-you-should-know",
    "title": "Common Linux Commands You Should Know",
    "topic": "System Administration",
    "published": "2021-12-27T12:00:00.000Z",
    "excerpt": "If you have little or no experience with Linux, this article is a starting point for you to learn about Linux operation."
  },
  {
    "slug": "aws-basics-ec2-instance-types",
    "title": "AWS Basics: EC2 Instance Types",
    "topic": "Cloud Computing",
    "published": "2021-12-05T12:00:00.000Z",
    "excerpt": "Elastic Compute Cloud (EC2) Amazon Web Services (AWS) offers a variety of cloud computing services."
  },
  {
    "slug": "sysbench-tutorial-mysql-and-i-o-benchmark",
    "title": "Sysbench Tutorial: MySQL and I/O Benchmark",
    "topic": "System Administration",
    "published": "2021-12-02T12:00:00.000Z",
    "excerpt": "Sysbench is a system benchmark tool which can run Lua scripts and measure MySQL and file I/O performance."
  },
  {
    "slug": "how-to-benchmark-a-kerberos-web-server-with-jmeter",
    "title": "How to Benchmark a Kerberos Web Server with JMeter",
    "topic": "System Administration",
    "published": "2021-11-28T12:00:00.000Z",
    "excerpt": "Apache JMeter is a load test tool commonly used for web server performance testing."
  },
  {
    "slug": "cryptography-basics-encryption-and-hashing",
    "title": "Cryptography Basics: Encryption and Hashing",
    "topic": "Cybersecurity",
    "published": "2021-11-27T12:00:00.000Z",
    "excerpt": "Cryptography can be separated into major categories including Asymmetric Encryption, Symmetric Encryption and Hashes."
  },
  {
    "slug": "how-to-transfer-files-between-windows-and-linux",
    "title": "How to Transfer Files between Windows and Linux",
    "topic": "System Administration",
    "published": "2021-03-07T12:00:00.000Z",
    "excerpt": "You can transfer files from Windows to Linux using SCP, and vice versa."
  },
  {
    "slug": "the-basics-of-serverless-and-microservice-architecture",
    "title": "The Basics of Serverless and Microservice Architecture",
    "topic": "Cloud Computing",
    "published": "2021-01-05T12:00:00.000Z",
    "excerpt": "Serverless is a type of cloud computing service model that offers functions as a service (FaaS)."
  },
  {
    "slug": "security-basics-configure-cloudflare-cdn",
    "title": "Security Basics: Configure Cloudflare CDN",
    "topic": "Cybersecurity",
    "published": "2021-01-02T12:00:00.000Z",
    "excerpt": "Websites are frequently targeted by hackers as they can be accessed by anyone on the Internet."
  },
  {
    "slug": "aws-basics-create-and-connect-to-ec2-instances",
    "title": "AWS Basics: Create and Connect to EC2 Instances",
    "topic": "Cloud Computing",
    "published": "2020-11-22T12:00:00.000Z",
    "excerpt": "If you are familiar with the concept of Virtual Machine (VM), you should know that an EC2 instance is basically a VM running on Amazon Web Services (AWS)."
  }
]