Articles

How DNS works

Quick answer: DNS (Domain Name System) translates human-readable domain names like example.com...

How to point a domain to Cloud2Y VPS

Quick answer: Copy your server's Dedicated IP from the Client Area service page, then create an A...

How to update an A record

Quick answer: An A record maps a hostname to an IPv4 address. To update it, open your DNS...

How to update an AAAA record

Quick answer: An AAAA record is the IPv6 equivalent of an A record: it maps a hostname to an IPv6...

How to configure a CNAME record

Quick answer: A CNAME record makes one hostname an alias of another — for example,...

How to configure MX records

Quick answer: MX records tell the world which server accepts email for your domain. Each MX entry...

How to configure TXT records

Quick answer: TXT records hold free-form text that services read from your DNS — site-ownership...

How to configure SPF, DKIM and DMARC

Quick answer: SPF, DKIM and DMARC are three DNS-published policies that let receiving servers...

How to reduce DNS propagation issues

Quick answer: Lower the TTL of the records you plan to change to 300 seconds at least a day in...

How long does DNS propagation take?

Quick answer: Typically from a few minutes up to a few hours — governed by the record's TTL. The...

How to install a free SSL certificate

Quick answer: Use Let's Encrypt with certbot: point your domain at the server, install certbot,...

How to renew a Let's Encrypt SSL certificate

Quick answer: Let's Encrypt certificates live 90 days and certbot renews them automatically via a...

How to fix the SSL mixed content issue

Quick answer: Mixed content means an HTTPS page still loads some resources (images, scripts,...

How to redirect HTTP to HTTPS

Quick answer: Add a permanent (301) redirect in your web server so every http:// request lands on...

How to troubleshoot a domain that does not open

Quick answer: Work down the chain: does the domain resolve (dig)? To the right IP? Does the...

How to troubleshoot DNS_PROBE_FINISHED_NXDOMAIN

Quick answer: NXDOMAIN means DNS answered “this name does not exist”: the record is...

How to configure DNS for WordPress

Quick answer: WordPress needs nothing exotic: an A record for the domain and one for www pointing...

How to configure DNS for email services

Quick answer: Working email DNS needs five pieces: MX records (where mail is delivered), SPF,...

Common DNS mistakes

Quick answer: The classics: editing DNS at the wrong provider, CNAME at the zone apex, MX...

DNS FAQ

Quick answer: Short answers to the DNS questions Cloud2Y customers ask most: where to manage...