#dns
Articles tagged "dns".
5 articles
How DNS Works (and What 'Propagation' Really Means)
DNS is the internet's phonebook — and one of the most common causes of outages nobody understands. Here's how a domain name becomes an IP address, in plain English, plus what 'propagation' actually is.
DNS Record Types Explained: A, AAAA, CNAME, MX, TXT and more
Setting up a domain means meeting a zoo of record types — A, AAAA, CNAME, MX, TXT, NS. Here's what each one does, when to use it, and the gotchas that trip people up.
Email Authentication Explained: SPF, DKIM & DMARC
If your emails land in spam — or scammers send mail pretending to be you — these three records are why. Here's what SPF, DKIM and DMARC do, how they work together, and how to set them up right.
DNSSEC Explained: signing DNS so it can't be faked
DNS was built without security — answers can be forged, sending users to fake servers. DNSSEC adds cryptographic signatures so resolvers can verify DNS answers are genuine. Here's how.
How to Set Up DMARC (step by step)
DMARC is what actually stops scammers spoofing your domain — but rushing it can block your own email. Here's the safe, staged way to roll it out from monitoring to full enforcement.