Article
Cloudflare DNS Ad Blocking with Terraform
I used Terraform to fetch public domain feeds, turn them into Cloudflare Zero Trust lists and enforce them with a Gateway DNS policy that remains reviewable as code.
Topic
DNS
11 matching entries across Articles, TIL and Projects.
Articles
Long-form writing tagged DNS.
Article
Lessons from a First Container Deployment
From WSL2 and container health checks to DNS caching and deployment tooling, the practical lessons I learned taking a simple application from source code to a running service.
Article
Find Missing AD Subnets with Netlogon
NO_CLIENT_SITE entries in Netlogon logs are useful evidence that client networks are not mapped cleanly to Active Directory sites. PowerShell can turn the logs into a subnet-hygiene report.
Article
Cloudflare WARP Configuration as Code
When private sites and DNS exceptions multiply, WARP device-profile configuration becomes data. Source control can become the input and PowerShell the generator.
Article
Why IP-Based Egress Steering Does Not Scale
Static IP and subnet rules become fragile when SaaS platforms and CDNs move underneath you. Domain-aware egress policy aligns network controls with application intent.
Today I Learned
Short notes and fixes tagged DNS.
Today I learned
Turning Remote Feeds into Terraform Policy Inputs
An HTTP data source can retrieve an external domain feed, but the useful pattern is to validate and normalize it before Terraform materializes enforcement objects.
Today I learned
NXDOMAIN Caching Beyond the Windows DNS Cache
A hostname can continue returning NXDOMAIN after its DNS record exists if another resolver layer has cached the earlier negative response.
Today I learned
Cloudflare www-to-Apex Redirect
The simple 301 redirect pattern I use to keep one canonical hostname for a site.
Today I learned
DNS Names vs IPs for Egress Policy
Cloud and SaaS services move between addresses. Policy often expresses intent more accurately when it follows the application hostname.
Today I learned
WARP Fallback Domains vs Split Tunnels
DNS resolution and packet routing are related, but a WARP configuration often needs you to reason about them separately.
Projects
Projects and implementation patterns tagged DNS.
ProjectActive
Cloudflare Gateway Ad Blocking with Terraform
A Terraform project that consumes remote domain feeds, normalizes them into Cloudflare Zero Trust lists and builds a Gateway DNS blocking policy from the generated data.