How to Install MongoDB on CentOS 7

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MongoDB is a NoSQL database intended for storing large amounts of data in document-oriented storage with dynamic schemas. NoSQL refers to a database with a data model other than the tabular format used in relational databases such as MySQL, PostgreSQL, and Microsoft SQL. MongoDB features include: full index support, replication, high availability, and auto-sharding.

Preflight Check

  • A Liquid Web Core Managed CentOS 7 node.
  • We are logged in as the root user.
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What is Systemctl? An In-Depth Overview

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systemctl.073020

What is Systemctl? 

The systemctl command is a utility which is responsible for examining and controlling the systemd system and service manager. It is a collection of system management libraries, utilities and daemons which function as a successor to the System V init daemon. The new systemctl commands have proven quite useful in managing a servers services. It provides detailed information about specific systemd services, and others that have server-wide utilization.

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How to Install PHP Extensions on CentOS 8

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This tutorial covers the installation of the PHP extension phpredis via the default CentOS 8 package manager DNF. It will also cover the installation of both PHP 7.4 and Redis on CentOS 8.

PECL, the PHP Extension Community Library, is a repository of C extensions that are loaded directly into PHP. PHP Extensions expand the functionality of PHP. PECL extensions can be installed via the use of the pecl command. There are also PHP extensions provided by package repositories. The decision of which to utilize typically depends on how PHP was installed.

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How to Install Wireguard on Ubuntu 18

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A Fast, Modern and Secure VPN Tunnel

Objective

In this tutorial we will learn what Wireguard is, what it is used for, how to install and configure it, and lastly, how to use it to it wisely. 

What is Wireguard? 

Wireguard is an open-source, dependable, advanced, VPN tunneling software you can install and use right now to create a secure, point-to-point connection to a server.

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Change a Password for PostgreSQL on Linux via Command Line

Reading Time: < 1 minutePostgreSQL supports many client authentication methods, but in this case we’re only going to concern ourselves with two: password and md5.

Note: The default authentication method for PostgreSQL is ident. If you’d like to change the PostgreSQL authentication method from ident to md5, then visit the linked tutorial!

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How to Install Graylog Sidecar

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What is Graylog Sidecar?

Graylog Sidecar is a nimble configuration management framework for various log collectors called backends. The Graylog master node acts as a centrally located hub that contains the configurations of the log collectors. Sidecar can run as a service on both Windows and Linux servers.

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How to Install and Configuring NTP on CentOS and Ubuntu

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Introduction

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.

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Install Fail2Ban On CentOS 7

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What Is Fail2Ban?

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.

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Understanding the Apache Service Status

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In this article, we will be reviewing the Apache Service Status. Sometimes checking the performance of a Cloud Dedicated server can be difficult. Apache has built-in utilities that assist in monitoring the usage and performance of Apache. Apache Status also provides information that aids in performance auditing and control tuning.

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How to Start and Enable Firewalld on CentOS 7

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In this article, we discuss how to start and enable firewalld. It is highly recommended that you have a firewall protecting your server.
Pre-Flight Check
  • These instructions are intended specifically for enabling and starting Firewalld CentOS 7.
  • I’ll be working from a Liquid Web Self Managed CentOS 7 VPS server, and I’ll be logged in as root.

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