DNS Best Practices for Security and Performance


DNS management is a significant hurdle in enterprise environments. DNS infrastructure needs to be organized properly to avoid security and performance issues. By following DNS best practices, most potential problems can be evaded.

Read More

How to Install NMAP on Ubuntu 18.04


This article will help you how to install Nmap on Ubuntu 18.04 as well as explore some of the options it has to offer. Use Nmap to discover network vulnerabilities on remote computer networks.

Read More

5 Linux SSH Security Best Practices to Secure Your Systems


The article covers the 5 most common and efficient ways to secure an SSH connection. The listed solutions go a long way in preventing malicious activity and protecting your servers.

Read More

How to Create a New MySQL Account and Grant Privileges


MySQL is a database application for Linux. It’s part of the LAMP (Linux, Apache, MySQL, PHP) stack that powers many features on the internet. A MySQL installation starts by default with a root user, but it’s better to create a specific user account…

Read More

Linux File Permission Tutorial: How to Check and Change Permissions


The file permission feature specifies how much power each user has over a given file or directory. To understand Linuxfile permissions, you need to get to know the different permission classes and levels. Once you have learned how to interpret…

Read More

How to Install and Use Nmap Network Scanner on Linux


Learn how to install Nmap on a Linux based system and use it to retrieve valuable information from remote systems.

Read More

How To Install SSL Certificate on Apache for CentOS 7


Learn how to obtain and install SSL Certificates on Apache CentOS 7. The article explains how to use an automated certificate authority like Let’s Encrypt, a commercial Comodo certificate, and how to create a certificate of your own.

Read More

How to Enable and Use firewalld on CentOS 7


This phoenixNAP guide instructs how to enable and start firewalld on CentOS 7. It explains basic firewall zone concepts and teaches you how to work with default firewalld zones.

Read More

How to Install / Enable OpenSSH on CentOS 7


This article provides all the information you need in order to set up SSH encryption on your remote device. It also covers the configuration of SSH and how to make exceptions in your firewall settings.

Read More

How To Enable SELinux In CentOS/RHEL 7


The article deals with the benefits of SELinux and the various options it provides. These settings can affect server security, and making sure you have all the relevant information is crucial.

Read More