Tutorials



How do I set up a mail server on a VPS and why do your emails end up in spam?

  • June 18, 2026, 02:30:43

Greetings, friends!Every entrepreneur or system administrator eventually faces the necessity of sending emails from a server. These could be transactional notifications from an e-commerce store, passw...

GrayLog Who needs it and why is it needed at work?

  • June 10, 2026, 01:27:17

Greetings, friends!Imagine a typical scenario: you don't just have one server running in your infrastructure, but five, ten, or several dozen. They host Nginx web servers, databases, backend Docker co...

Saving resources: how to get the most out of a cheap VPS?

  • May 25, 2026, 12:13:54

Greetings, friends!Anyone who has ever used servers understands the following situation: you have a small pet project, a Telegram bot, a VPN, or a scraper, and you don't want to buy a powerful machine...

Server monitoring: How do you know that everything has fallen before your customers?

  • May 25, 2026, 10:57:02

Greetings, friends!Imagine this scenario — you wake up at three in the morning to a call from an irate client or a message from management: "The website is down, we are losing orders!". You frantica...

What is Suricata IDS and who needs it to work?

  • May 25, 2026, 09:22:04

Greetings, friends!In 2026, classical server protection at the port level is no longer enough. Standard firewalls (like iptables or UFW) function like a basic door lock: they either close a port or op...