Why Mozilla’s DNS over HTTPS proposal is a bad idea
A couple of months ago, Mozilla posted A cartoon intro to DNS over HTTPS, which outlines their plans to enable support routing DNS queries over a secure connection. Initially this …
Checking SPF on incoming mail with Postfix
Something I’ve been wanting to add to my mail server for a while is Sender Policy Framework (SPF) checking on incoming mail. For anyone who isn’t familiar with SPF, it …
LetsEncrypt DNS challenges with djbdns
Over the past few months I’ve been gradually rolling out TLS to the various domains and services that I run for myself and clients using the free certificate service LetsEncrypt. …