An introduction to DNS
An overview of what DNS is, how it works, and the purposes of the various DNS resource record types
seanthegeek.net
How to examine a credential harvesting page using Microsoft Edge
A practical guide to using Microsoft Edge to examine heavily obfuscated JavaScript in a credential harvesting page
How to configure a nginx reverse proxy with Let's Encrypt certificates
Let's Encrypt allows nginx reverse proxy servers to have a real, trusted SSL certificate, even for internal sites.
How the Parler data was legally acquired by activists
The Parler data dumps you've heard about were obtained legally by taking advantage of Parler's shoddy architecture. Here's how they did it.
Ohio's absentee ballot system disenfranchises disabled voters. Let's fix that before November.
Ohio is disenfranchising many disabled voters by requiring the same voter ID information multiple times. Oregon-style mail-in voting is better for everyone.
How to forward a forensic copy of an email as an attachment
Step-by-step instructions on how to many popular mail and webmail clients to properly forward emails as attachments with forensic headers intact
How to view email headers
Step by step instructions for viewing email message headers using popular mail clients and webmail services, including Outlook, Gmail, and more.
Proofpoint is requiring their customers to pay for Email Fraud Defense to get aggregate DMARC data from their gateways
In order to get aggregate DMARC data on mail flowing through their own gateways, Proofpoint customers must purchase Proofpoint Email Fraud Defense
Emotet malspam campaign exploits reliance on magic for file type detection
Emotet is a trojan designed to steal banking information. It is frequently spread by sending phishing emails to governments, banks, healthcare organizations, and schools. The phishing emails will o...
How to inspect the certificate of a mail server over a CLI
A tiny guide to using the openssl CLI tool to inspect and/or save the SSL.TLS certificates used by mail servers