logs



Why is the disk on the server overflowing and how to find the "hidden" files?

Greetings, friends!Sudden disk space depletion on a Linux server is one of the most common causes of emergency failures. This issue can stop databases, break web server operations, and freeze system p...

What should I do if the server's IP is blacklisted (Spamhaus, etc.)?

Suppose you have set up a mail server, prepared an important B2B email campaign with commercial proposals for client leads, or launched automated order notifications for an online store. But suddenly,...

Analyzing server logs: How do you know if someone is trying to hack you?

Greetings, friends!When you rent a VPS and deploy a project on it, it might seem like the system is in complete silence until real users visit the site. But as soon as you open the raw system logs, th...

Databases on a diet: why your MySQL is slowing down and how to fix it

Greetings, friends!Are you familiar with this scenario: you rented an excellent server, the CPU usage isn't even at 20%, the network works perfectly, but your website or web application takes a treach...

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

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...