The chown command changes user ownership of a file, directory, or link in Linux. Every file is associated with an owning user or group in Linux. Make sure to configure file and folder permissions properly. This tutorial will show you how to execute the Linux chown command to control who can modify file contents.
SELinux is a mandatory access control (MAC) enforcer built into the Linux kernel. It limits the privileges of individual services whose vulnerabilities might be a threat to the system. SELinux acts as a system-wide protective agent by enforcing security policies. CentOS systems without SELinux rely on the configuration of all its privileged software applications. A single misconfiguration may compromise the entire system. In this guide, you will learn how to check SELinux status and disable the service on CentOS 7.
When establishing a remote connection between a client and a server, a primary concern is ensuring a secure connection. For Linux users, the best practice of accessing and managing your server remotely is through the cryptographic protocol known as Secure Shell (SSH). Tutorial on how to Enable, Install, and Configure SSH on Ubuntu. Enabling SSH allows you to connect remotely to your server securely.
Sudo stands for superuser do. Sudo is a command used in Unix-like systems to allow a regular user to execute a program as another user. In most cases, it is the root user. Sudo gives you administrator-level permissions to run programs on your machine. This guide will show you how to create a user with sudo privileges on Debian and test the sudo access.
If a Linux process becomes unresponsive or is consuming too many resources, you may need to kill it. Most processes have their own methods of shutting down. Unfortunately, sometimes processes can malfunction and not allow themselves to be shut down. If a process is currently unresponsive, it becomes necessary to shut it down through the command line. View our complete guide on how to kill a Linux process using the command line.
Are you looking to change the root password in Ubuntu? Changing passwords is a good practice and should be done periodically. Linux allows multiple user accounts, each having its own password. Users can only change their own password. However, there is always a sudo/root (SuperUser) account. Root users can change the password of any account, including their own.
The .htaccess file in Apache is a tool that allows configurations at the directory and subdirectory level. Using a .htaccess file will let you configure website details without altering server configuration files. This tutorial will show you how to set up and enable .htaccess on Apache.
The sudo command is the preferred means to handle elevated permissions. Standard user accounts are restricted from performing sensitive tasks, such as viewing the contents of the /root directory. This prevents the accidental use of commands with massive consequences. It also makes it more difficult for intruders to compromise a system. If you need to run an administrative command. Sudo – or Super User Do – grants you privileges to run sensitive tasks. The sudo command will grant elevated permissions for 15 minutes. This guide will show you how to create a new user on Ubuntu and provide sudo access.
ModSecurity is an Open-source firewall application for Apache. Learn how to Setup & Configure ModSecurity on Apache (Debian, Ubuntu, CentOS).
The mod_evasive tool is an Apache web services module that helps your server stay running in the event of an attack. Learn How To Protect Against DoS & DDoS with mod_evasive for Apache servers. A detailed tutorial on installing and configuring the security module to mitigate DoS attacks!