DNS Records articles

DNS Records 795 How to configure a domain DNS Configuring DNS means telling the world where your domain should point. There are two levels, and it is worth...
DNS Records 541 DNS records explained: A, CNAME, MX, TXT and TTL If nameservers say who is in charge, DNS records say what. They are simple lines, each pointing part of the domain...
DNS Records 456 Proving the domain is yours: TXT verification records Google Workspace, Microsoft 365, Meta Business and dozens of other services all ask for the same thing before...
DNS Records 326 IP addresses explained: static, dynamic, private, public, shared and dedicated An IP address is a device’s address on the internet. Without one, data has nowhere to go - like a letter with no...
DNS Records 466 Dynamic DNS: a fixed name for an address that keeps changing You want to reach the camera at the warehouse, the office file server, or the computer that stays on at home. You...
DNS Records 337 SRV records: what they are for, and how to create one An A record says where a machine is. An SRV record says more: which machine, on which port, and in what order...
DNS Records 257 Pointing a subdomain to another server or service: A record or CNAME You want the main site to stay with us and shop.asuaempresa.co.mz to open somewhere else: a shop platform, a status...
DNS Records 248 IPv6 and AAAA records: do you need one, and when adding one breaks your site The short answer: an AAAA record points your name to an IPv6 address, just as the A record points to an IPv4 one. It...
DNS Records 271 DNSSEC: what it is, and what it changes for your domain The short answer: DNSSEC is a digital signature on DNS answers. It lets whoever asks “where is this domain?” confirm...
DNS Records 331 A wildcard DNS record (*): what it does, and when it gets in the way The short answer: a wildcard record, written with an asterisk (*), answers for any subdomain that has no record of...
DNS Records 248 The SOA record and its serial number: what each field means and when it matters The short answer: the SOA (Start of Authority) is the first record in every DNS zone. It names the primary...
DNS Records 269 CNAME on the bare domain: why it is not allowed and what to use instead The short answer: a CNAME says “this name is really that other name”. The DNS standard forbids a CNAME on a name...
DNS Records 363 Reading a whole DNS zone line by line: names, trailing dots, TTL and the @ sign The short answer: a DNS zone is a plain-text list of records, one per line, in a standard format (the “zone file”...
DNS Records 247 MX records in depth: priority, several mail servers and the mistakes that lose e-mail The short answer: the MX record tells other servers where to deliver your domain’s mail. Each MX has a priority (a...
DNS Records 232 TXT records in practice: long values, quotes and several records on one name The short answer: a TXT record holds text, and it is where SPF, DKIM, DMARC and the domain verifications for Google,...