Each of us may have come across situations when, after clearing files on the server (based on Centos, Debian, Ubuntu, etc.), deleting unnecessary files did not clear the disk space.

In this manual we will tell you how to install Sentry on Centos 7, and do it quickly, correctly and reliably. In addition, we will prepare the configuration for Supervisor, with which we will manage the main Sentry services.

Proxies and VPNs at the current stage of Internet development have become a necessary tool for almost every user. Improving security, bypassing website blocking and restrictions are some of the main advantages of using proxy services. Someone prefers...

As a result of an unexpected shutdown of the database server, or for other reasons, sometimes the MySQL InnoDB storage engine may be damaged, as a result of which the MySQL service will stop starting. You can solve this problem as follows.

All owners of MySQL databases are familiar with the problem of daily backups. It is important not only to have a consistent copy of all the necessary databases, but also to backup at a given time, without creating an increased load on the working arc...

Let's consider obtaining an SSL certificate for a domain and all subdomains through DNS validation using CloudFlare as one of the most popular DNS services

In order to maximize the delivery of your mailing lists, you must fulfill all the requirements and conditions of the mail services, as well as configure all the necessary set of keys, records and settings on your mail server.