Security

Prelude I have a DNS resolver setup at home which my home devices use and set it to use DNS over TLS (DoT) to resolve queries so ISPs and such can’t see the domains I’m visiting, but SNI is leaking out the sites I’m visiting and there’s nothing much I can do about it for now. 😣 What is the Purpose of SNI Problem Name-based virtual hosting allows multiple DNS hostnames to be hosted by a single server (usually a web server) on the same IP address....

Preventing email spoofing is important to all domain owners, even if you are not using your domain for email services as it affects the reputation of your domain. In this post I will talk about how to prevent email spoofing with SPF, DKIM and DMARC. Sender Policy Framework (SPF) SPF allows the receiver to check that an email claiming to come from a specific domain comes from an IP address authorized by that domain’s administrators....