Best Practices for Firewall Rules

Basic Firewall Rules

In a firewall rule, the action component decides if it will permit or block traffic. It has an action on match feature. For example, if the traffic matches the components of a rule, then it will be permitted to connect to the network. It is essential to consider the potential security risks when modifying a firewall rule to avoid future issues. Following best practices for configuring firewalls can help you maximize the effectiveness of your solution.

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An Introduction to Firewalls

In network security, the first line of defense that should be used is a firewall. What is a firewall? It is a protective layer for your server that monitors and limits the incoming and outgoing network traffic. It uses a set of rules to determine to allow or block specific network traffic. Firewalls can prevent unauthorized use before reaching your servers. Firewalls can be hardware or software based.

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How to Install NVM (Node Version Manager) for Node.js on Ubuntu 16.04 LTS

Node Version Manager, also known as NVM is used to control and manage multiple active versions of Node.js in one system. It is a command line utility and a bash script that allows programmers to shift between different versions of Node.js. They will be able to install any version using a single command and setting defaults using the command line utility.

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