In this article, I’m going to show how to install netcat on RHEL/CentOS 8. Let’s get started: Table of Contents Installation Verification Usage Installation...
Infrequently it happens on CentOS. MySQL/MariaDB stops working and our web application crashes. At this situation we have to login to SSH and restart...
Typically, SSH keys is more secure and convenient than traditional password authentication. In this article, I’m going to show how to setup SSH key-based...
Directory listing allows the contents of a directory to be displayed upon request from a web client. It’s not good. To secure our web application we...
Today I’m going to share the solution of mysqli_connect(): (HY000/2002): Permission denied error. Let’s see: Table of Contents Reason Solution Reason This error occurs...
Composer is an application-level package manager for the PHP programming language that provides a standard format for managing dependencies of PHP software and required...
Security-Enhanced Linux (SELinux) is a Linux kernel security module that provides a mechanism for supporting access control security policies, including mandatory access controls (MAC). SELinux is...
Htop is an interactive system-monitor process-viewer and process-manager. It is designed as an alternative to the Unix program top. It shows a frequently updated...
