DNS Security Articles

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8/12/2025 • EN

Securing Azure Private DNS with Azure Firewall and NSGs

Guide on securing Azure Private DNS using Azure Firewall and NSGs, with PowerShell automation for enterprise deployment.

Azure Firewall Azure Private DNS DNS Security Network Security Groups Powershell

Marcin Gastol

5/21/2024 • EN

How someone temporarily took over my subdomain

A developer recounts how a forgotten DNS record allowed someone to hijack a subdomain via an abandoned S3 bucket, discovered only through Google Analytics alerts.

aws s3 DNS Configuration DNS Security google analytics Subdomain Takeover

Nicholas C. Zakas

1/16/2024 • EN

Hosting on GitHub Pages? Watch out for Subdomain Hijacking

Explains how a DNS misconfiguration can lead to subdomain hijacking on GitHub Pages, allowing attackers to host spammy content on your domain.

DNS Security github-pages static site Subdomain Hijacking Web Hosting

Robin Moffatt

DNS Security Articles

Securing Azure Private DNS with Azure Firewall and NSGs

How someone temporarily took over my subdomain

Hosting on GitHub Pages? Watch out for Subdomain Hijacking

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