Learn Tips and Tricks - Page 10 - Results from #185

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How To Install OpenLDAP Server for Centralized Authentication

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Learn how to install and configure OpenLDAP server for centralized authentication in Ubuntu 16.04/18.04 and CentOS 7 in this helpful tutorial.

Brittany Day
Jun 16, 2020

The Hitchhiker's Guide to Web App Pen Testing

Have some time on your hands and looking to learn about web app pen testing? Here's some advice for getting started.

Brittany Day
Jun 15, 2020

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How to Audit Your Linux System’s Security with Lynis

Looking to improve the security of your Linux system? Then you'll want to consider auditing your system with Lynis. Learn how this can be done in a detailed tutorial.

Brittany Day
Jun 04, 2020

Sysadmin security: 8 Linux lockdown controls

Learn how to lock down your Linux system from unwanted access locally and across the network with eight helpful system controls.

Brittany Day
May 19, 2020

How to Set Up a Firewall with UFW on Ubuntu 20.04

Are you an Ubuntu user? Learn how to use the UFW tool to configure and manage a firewall on Ubuntu 20.04 in a helpful Linuxize tutorial.

Brittany Day
May 12, 2020

Recovering a breached Linux system

Discovering a system breach and recovering a breached system are not fun at all. However, knowing what to do in the case of a breach is critical - here are the steps to recovery.

Brittany Day
Apr 27, 2020

Linux housekeeping: Handling archives and backups

Most system administrators know the importance of backing up data - but what should you do with all the backups and archives you've created to ensure that they remain secure? Find out in this article.

Brittany Day
Apr 17, 2020

How to secure a Kubernetes cluster by preventing unwanted modules from loading

Looking to secure a Kubernetes cluster? One step you should take is unloading unnecessary kernel modules in your Linux containers. Learn how to stop modules from loading on your containers in a helpful tutorial.

Brittany Day
Apr 10, 2020

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5 Linux backup and restore tips from the trenches

Learn five helpful backup and restore tips for Linux from someone who's been there, failed, and then succeeded.

Brittany Day
Mar 30, 2020

Track Coronavirus Disease 2019 (COVID-19) Statistics From Commandline

Are you a Linux user trying to stay up-to-date on the Coronavirus pandemic? Learn how to track COVID-19 statistics from Commandline using Corona-cli, Coronavirus-tracker-cli and COVID-19 Tracker CLI in this helpful tutorial.

Brittany Day
Mar 27, 2020

How do you flush DNS cache on Linux? Read to find out!

One of the ways to solve connection issues is by clearing DNS cache. The Domain Name System works to resolve website names into their respective IP addresses.

Brittany Day
Mar 13, 2020

How to create a Linux user that cannot log in

For security reasons, you might need to create a Linux user without the ability to log in. Jack Wallen shows you how.

Brittany Day
Feb 28, 2020

Kali Linux explained: A pentester’s toolkit

Fast forward to that scene in a World War II movie where a grizzled, cigar-chomping sergeant removes the dusty tarp covering the Big Guns. That's approximately what it feels like to pick up Kali and start playing around with it.

Brittany Day
Feb 26, 2020

How to use Restricted Shell to limit user access to a Linux system

Learn how to prevent Linux users from executing certain commands and confining them to their home directory by employing rbash.

Brittany Day
Feb 21, 2020

Linux kernel hardening: Kernel parameters with sysctl

Linux kernel security can be increased at runtime using sysctl, allowing to mitigate potential vulnerabilities and exploits.

Brittany Day
Jan 13, 2020

How to use dnscrypt-proxy to secure DNS queries in Linux

This article describes how to install and configure dnscrypt-proxy to use DNSCrypt and DNS-over-HTTPS (DoH) with DNSSEC. Learn how to use dnscrypt-proxy to secure DNS queries in Linux:

Brittany Day
Jan 06, 2020

Secure Nginx with Let's Encrypt on CentOS 8

Let's Encrypt is a free, automated, and open certificate authority developed by the Internet Security Research Group (ISRG) that provides free SSL certificates. Learn how to install a free Let's Encrypt SSL certificate on CentOS 8 running Nginx as a web server and how to configure Nginx to use the SSL certificate and enable HTTP/2 in an informative tutorial:

Brittany Day
Dec 26, 2019

SSH Command

Secure Shell (SSH) is a cryptographic network protocol used for an encrypted connection between a client and a server. The ssh client creates a secure connection to the SSH server on a remote machine. The encrypted connection can be used to execute commands on the server, X11 tunneling, port forwarding, and more. Learn more about SSH command and its role in securely managing a remote server:

Brittany Day
Dec 25, 2019

How to test and validate DNSSEC using dig command line

How do I test and validate DNSSEC using thedig commandline under Linux, macOS, *BSD, and Unix-like systems? Learn how to test and validateDNSSEC using dig command line:

Brittany Day
Dec 20, 2019

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Securing an inherited Linux system

Learn how to secure an inherited Linux system you didn’t build but are suddenly responsible for:

Brittany Day
Dec 19, 2019

How to learn tips and tricks

How To Strengthen Linux Security by Auditing with OpenSCAP

How To Check RDP Service in Linux Offered by XRDP

How to Install & Run Podman on Rocky Linux