This is one way to find public IP Ranges for email using DIG. This is used if you want to...
DNS name servers are usually split into two categories:...
Let’s talk about a topic that some people just don’t get, DNS. I’ll try to make is super simple to...
DNS rewrite or DNS Doctoring has been around on the Cisco ASA’s for a while. Palo Alto firewalls received this...
SPF’s are used to help mitigate SPAM emails. It basically dictates what happens when there’s a failure in a match...
This is a good doc from Google. Security Benefits Introduction: DNS security threats and mitigations Because of the open, distributed...