In this article we will learn what the Network Time protocol (NTP) is and how to install it on the two Linux distributions most commonly used on Liquid Web’s servers. We will be focusing on using CentOS 7 and Ubuntu 18.04 servers, but the process is largely the same on other recent versions of each. Before we start, make sure we are familiar with using SSH (Secure Shell) as we’ll need it to connect to the server. Here’s a link to one of our articles on the basics of SSH if you are unfamiliar with its usage.
Keras is a Python-based high-level neural networks API that is capable of running on top TensorFlow, CNTK, or Theano frameworks used for machine learning. It can be said that Keras acts as the Python Deep Learning Library. Keras was created with emphasis on being user-friendly since the main principle behind it is “designed for human beings, not machines.” The core data structure of Keras is a model, or a way to organize layers.
In this article, we will be discussing what a python package is, what requirements are needed to install a software title, and the many other options available when setting up a new Python program.
Chef is a popular, open-source, IaC (Infrastructure as Code) management tool. It eases administration, configuration, and deployment of server resources across a network from a central location.
What is IaC?
IaC (or Infrastructure as code) is the procedure of provisioning, coordinating, and controlling servers via machine-readable files, that are defined in commonly reused records called cookbooks rather than physical hardware configuration or interactive configuration tools.
The CentOS 7 Linux distribution includes Python 2 by default. However, Python 2 is going to reach EOL on January 1, 2020. While some legacy applications might require access to Python 2 for various reasons, it’s vitally important to kick start new projects in Python 3.
In this tutorial, we are going to take a look at how to get up and running with Python 3 on a CentOS 7 server. Specifically, we will take a look at how to install Python 3 via the CentOS 7 package manager Yum as well as from source.
The OpenVPN software bundle is a set of open-source, virtual private network (VPN) applications used to create a direct, secure site-to-site connection that provides remote access between two locations.
Fail2ban is an open-source software that actively scans the servers log files in real-time for any brute force login attempts, and if found, summarily blocks the attack using the servers firewall software (firewalld or iptables). Fail2Ban runs as a background process and continuously scans the log files for unusual login patterns and security breach attempts.
Siege is a remote host http/https regression testing and benchmarking tool that can be used to test the performance of your web server under duress to see how it will perform.
It allows an admin or server owner to simulate hits or connections to a web server with a preconfigured number of concurrent connections from simulated users. By utilizing this software, these simulated users target the server and place it “under siege,” hence the name. The timeframe of the siege is measured in:
In this article, we will be discussing PhantomJS. PhantomJS is, in the simplest of terms, is a headless browser (headless, meaning without a GUI) that utilizes a javascript API. This function makes the browser very useful when used for:
