DNS-Based Defense SPF
In this lesson, we will explore Sender Policy Framework (SPF), a DNS-based defense against phishing.
We'll cover the following...
It will be useful to be able to query DNS records to understand these defenses and configure them for your domains. If you’re running a Unix-like operating system like Mac OS or Linux, you’ll have a program called dig installed. You can run dig at the command line. You can read ...