Installing a mail server on CentOS 7 can be done in several ways, but one of the most common is to use a combination of Postfix and Dovecot. Postfix is a sender program and is one of the most popular mail servers in the world.

SSL certificate on VPS/VDS is used to ensure the security of data transfer between the client and the server. SSL certificate is used to protect transmitted data by encryption, which prevents access to this data by intruders.

TTL (Time To Live) is a value that is used in network communication to determine the time that must pass before a packet is dropped. This field is set in the IP packet header and indicates the number of "hops" or routers that the packet

Finding out the version of Nginx in Linux is a task you may need to do to check compatibility with modules, updates or troubleshooting. In this article we will look at simple and effective ways to get information about the current version of Nginx,

Nginx is a popular web server used to serve dynamic and static websites. If you decide to remove Nginx from your Ubuntu server, there are a few simple steps to help you do so.

In the Linux operating system, each file has attributes that define who can read, write, or execute the file. These attributes are called file permissions.

The find command in Linux is used to search for files and directories in specified directories based on various criteria. This command is one of the most powerful and widespread utilities in Linux.

An inode (Index Node) in Linux is a data structure that stores information about a file or directory, such as its owner, access rights, date and time of creation and modification, size, and location on the hard disk. Each file or directory in the

The stable operation of a Linux system directly depends on the timely detection and elimination of errors. They can be related to system settings, hardware failures or application errors. Linux errors can occur due to various reasons and can