Knowledge Base

Found Knowledge Base articles
Get a free .design domain when you order a VPS in the Netherlands!
Manage iptables rules: view, delete, and create.
Using SSH to connect to a remote server
Configuring authorization by SSH keys on a Linux server
Obtaining a Let's Encrypt SSL certificate in Ubuntu with Certbot
How to find out the IP address in Linux
How to recognize a domain MX record using the DIG command
What is an MX record - how to set it up and test it
Why is Email validation necessary?
How to point a domain name to an IP address
HTTP and HTTPS
What is Identity Digital
Domain name registry & Domain name registrar
How DHCP works
What is a mail server and how does it work
Network ports - what they are
How to protect the server from DDoS attacks
What are server logs and what are they for
Why do you need SSL certificate
What is the difference between VPS and hosting
Choosing a free control panel for VPS
Configuring Ubuntu VPS server
VPS and dedicated server: find the differences
What is reverse DNS (rDNS/PTR)?
What is DNSSEC and what is it for?
What's Spamhaus?
How can I prevent my emails from being marked as spam?
What is DKIM and what is it for?
What is DMARC and what is it for?
What is SPF and what is it for?