Linux Tutorials on the topic “security”
-
How to Install KeeWeb Password Manager on Ubuntu 20.04
Author: Hitesh Jethva • Tags: linux, security, ubuntu • Comments: 2 • Published: Dec 28, 2020KeeWeb is an open-source password manager used to store passwords both online and offline. It is compatible with KeePass and also available as a web version and desktop apps. In this tutorial, we will show you how to install the KeeWeb password manager on Ubuntu 20.04.
-
How to Set Up WireGuard VPN on Ubuntu 20.04
Author: Hitesh Jethva • Tags: linux, security, ubuntu • Comments: 2 • Published: Dec 18, 2020WireGuard is an open-source and security-focused virtual private network designed for simplicity and ease of use. If you are looking for a lightweight and fast VPN then the WireGuard VPN is the best choice for you. In this tutorial, we will show you how to install the WireGuard VPN server and client on Ubuntu 20.04.
-
Securing your ISPConfig 3 managed mailserver with a valid Let's Encrypt SSL certificate
Author: Thom Pol • Tags: ispconfig, linux, security • Comments: 1 • Published: Nov 13, 2020If you're running your own mailserver, it's best practice to connect to it securely with a SSL/TLS connection. You'll need a valid certificate for these secure connections. In this tutorial, we'll set up a Let's Encrypt certificate for our mailserver that renews automatically.
-
-
How to set up Wireguard VPN on CentOS 8
Author: Navjot Singh • Tags: linux, security • Comments: 0 • Published: Nov 10, 2020Wireguard is an open-source cross-platform VPN implementation that uses state of the art cryptography. It is faster, simpler and more functional than IPSec and OpenVPN.
-
Install and Configure Passbolt Team Password Manager on Ubuntu 20.04
Author: Hitesh Jethva • Tags: linux, security, server, ubuntu, web server • Comments: 1 • Published: Aug 20, 2020Passbolt is a free, open-source, self-hosted and extensible password manager that helps you to securely share and store login credentials, such as password of the router, website, Wi-Fi, and more.
-
How to Install TeamPass Password Manager on Ubuntu 20.04
Author: Hitesh Jethva • Tags: linux, security, ubuntu • Comments: 1 • Published: Jul 27, 2020TeamPass is a Collaborative Passwords Manager used for managing passwords and sharing them among team members. In this tutorial, we will be going to show you how to install TeamPass Password Manager on Ubuntu 20.04 with Let's Encrypt SSL.
-
How to Install Matrix Synapse Chat on Ubuntu 20.04 LTS
Author: Muhammad Arul • Tags: linux, nginx, security, server, ubuntu • Comments: 4 • Published: Jun 08, 2020In this tutorial, we will show you step-by-step how to install and configure Matrix Synapse on Ubuntu 20.04 LTS. Matrix is a new ecosystem for decentralized communication in real time for open federated instant messaging and VoIP services.
-
How to Find Active SSH Connections on Linux
Author: Hitesh Jethva • Tags: linux, security • Comments: 0 • Published: May 13, 2020If you are Linux system administrator and responsible for managing servers then you may often need to know how many ssh connections are active on your server and where the connections come from. This tutorial shows you different ways to identify the connections.
-
How to Securely Destroy/Wipe Data on Hard Drives with shred on Linux
Author: Falko Timme • Tags: linux, security • Comments: 19 • Updated: May 08, 2020Sometimes you need to destroy or wipe data from hard drives (for example, before you sell your old hard drives on eBay) so that nobody else can access them. Simply deleting data (e.g. with rm) is not enough because that just removes the file system pointer, but not the data, so it can easily be undeleted with recovery software. Even zero'ing out your hard drive might not be enough. Here's where shred comes into play - shred can overwrite the files and partitions repeatedly, in order to make it harder for even very expensive hardware probing to recover the data.
-
Server monitoring with Munin and Monit on CentOS 7.2
Author: Till Brehm • Tags: centos, monitoring, security • Comments: 6 • Updated: Apr 30, 2020In this article, I will describe how you can monitor your CentOS 7.2 server with Munin and Monit. Munin produces nifty little graphics about nearly every aspect of your server (load average, memory usage, CPU usage, MySQL throughput, eth0 traffic, etc.) without much configuration, whereas Monit checks the availability of services like Apache, MySQL, Postfix and takes the appropriate action such as a restart if it finds a service is not behaving as expected. The combination of the two gives you full monitoring: graphics that lets you recognize current or upcoming problems (like "We need a bigger server soon, our load average is increasing rapidly."), and a watchdog that ensures the availability of the monitored services.
