The basics of Networking | Network Elements | Routers
What a router does in a network — routing tables, BGP, and NAT — explained for IT beginners learning how data moves between networks and the internet.
Posts
The Basics of Networking | Network Elements | Switches
Network switches explained — Layer 2 vs Layer 3 differences, MAC vs IP forwarding, and when to pick a routing-capable switch over a basic access switch.
The Basics of Networking | Network Elements | Wireless Access Points (WAP)
What a wireless access point (WAP) does — bridging Wi-Fi clients to the wired network, extending coverage, and supporting VPN and QoS for users.
The Basics of Networking | Network Elements | Wireless LAN Controllers (WLC)
Wireless LAN Controllers (WLC) explained — central management of multiple access points, security policy enforcement, and QoS for voice and video.
Configure SMTP with Cisco ISE 3 | Import Microsoft 365 Certificates
Fix the SSL trust error when wiring Cisco ISE 3 to Microsoft 365 SMTP — extract the cert chain with OpenSSL and import it into ISE trusted store.
AWS Certified Advanced Networking - Specialty: Documenting Progress
Study plan for AWS Certified Advanced Networking Specialty (ANS-C01): Direct Connect, Transit Gateway, hybrid BGP, VPC routing, and a failed attempt.
Adding Google Analytics to a Static Website
Add Google Analytics tracking to an S3-hosted static website by injecting the GA4 measurement snippet into HTML and verifying real-time pageview events.
Creating a Links Website - S3, CloudFront & Certificate Manager - Supporting SSL + HTML/CSS - Part 1
Build a Linktree-style links page from scratch with HTML/CSS on Amazon S3, CloudFront, and ACM SSL. Part 1 covers project plan and S3 bucket setup.
Creating a Links Website - S3, CloudFront & Certificate Manager - Supporting SSL + HTML/CSS - Part 2
Part 2 of the S3 links site build: request a public SSL certificate from AWS Certificate Manager (ACM) and validate ownership for use with CloudFront.
Creating a Links Website - S3, CloudFront & Certificate Manager - Supporting SSL + HTML/CSS - Part 3
Part 3 of the S3 links site build: create a CloudFront distribution as a CDN in front of the S3 bucket, attach the ACM certificate, and serve over HTTPS.