How To Set Up Multi-Factor Authentication for SSH on CentOS 8

James Ensor 5wire, CentOS, Security, Servers, Tutorial 3 June 2021
This tutorial will teach you, step-by-step, how to set up multi-factor authentication for SSH on CentOS 8.
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How To Set Up SSH Keys on CentOS 8

James Ensor 5wire, CentOS, Security, Servers 31 May 2021
This tutorial will teach you how to set up SSH Keys on a server running CentOS 8. SSH, or secure shell, is an encrypted protocol used to administer and communicate with servers. When working with…
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OpenSSL Essentials: Working with SSL Certificates, Private Keys and CSRs

James Ensor 5wire, Security, Servers, Tutorial 6 January 2021
OpenSSL is a versatile command line tool that can be used for a large variety of tasks related to Public Key Infrastructure (PKI) and HTTPS (HTTP over TLS).
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An Introduction to Linux Permissions

James Ensor 5wire, Security, Servers, Tutorial 14 September 2020
Linux is a multi-user OS that is based on the Unix concepts of file ownership and permissions to provide security at the file system level.
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How To Enable SFTP Without Shell Access on CentOS 7

James Ensor 5wire, CentOS, Security, Support, Tutorial 21 January 2018
Introduction SFTP stands for SSH File Transfer Protocol. As its name suggests, it’s a secure way of transferring files to a server using an encrypted SSH connection. Despite the name, it’s a completely different protocol…
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What is SSH? SSH Essentials, and how to use SSH

James Ensor 5wire, Blog, CentOS, Security, Servers, Tutorial 21 January 2018
Introduction SSH is a secure protocol used as the primary means of connecting to Linux servers remotely. It provides a text-based interface by spawning a remote shell. After connecting, all commands you type in your…
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How To Install Bacula Server on CentOS 7

James Ensor 5wire, CentOS, Security, Servers, Tutorial, VPS 16 August 2017
Introduction Bacula is an open source network backup solution that allows you create backups and perform data recovery of your computer systems. It is very flexible and robust, which makes it, while slightly cumbersome to…
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How To Protect SSH With Fail2Ban on CentOS 7

James Ensor 5wire, Security, Servers, Support, Tutorial, VPS 16 August 2017
Introduction While connecting to your server through SSH can be very secure, the SSH daemon itself is a service that must be exposed to the Internet to function properly. This comes with some inherent risk…
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