智能运维

Introduction Secure Shell (SSH) is a cryptographic protocol that allows a client to interact with a remote server in a secure environment. High-level encryption protects the exchange of sensitive inf…

Introduction SELinux is a security mechanism built into the Linux kernel. Linux distributions such as CentOS, RHEL, and Fedora are equipped with SELinux by default. SELinux improves server security b…

Introduction SSH (Secure Shell) is a network protocol that enables secure remote connections between two systems. System admins use SSH utilities to manage machines, copy, or move files between syste…

Introduction ClickHouse is an open-source column-oriented database management system. It is a fast, scalable, and efficient software to use for data analysis updated in real-time. It uses less memory…

Introduction Linux screen provides users an option to open several separate terminal instances within a single terminal window manager. Screen also includes an enhanced command line, giving you extra…

Introduction Secure Shell (SSH) is an encrypted protocol used by Linux users to connect to their remote servers. Generally, there are two ways for clients to access their servers – using password bas…

Introduction Ubuntu comes pre-installed with a firewall configuration tool, UFW (Uncomplicated Firewall). UFW is easy to use for managing server firewall settings. This tutorial shows you how to disa…

Introduction Firewalld is a dynamically managed firewall solution that supports network zoning. System admins use it to allow and disallow incoming and outgoing traffic dynamically. It supports both …

Introduction Cron is a Linux utility for scheduling scripts and commands. This guide will show you several options to view current cron jobs scheduled in the crontab list. Prerequisites A user accoun…

Introduction How do I delete a file in Linux using the command line option? How can I remove a Linux directory? Deleting files and directories is a necessary task when working with Linux. In this gui…