The YubiKey is a hardware authentication device manufactured by Yubico that supports one-time passwords, public-key encryption and authentication, and the Universal 2nd Factor (U2F) and FIDO2 protocols developed by the FIDO Alliance.
If you want to replace the certificate for your hostname with a custom certificate but you had enabled Let’s Encrypt, you will need to disable Let’s Encrypt for the hostname first. The following command let’s DirectAdmin know that it does not need to renew the Let’s Encrypt certificate. This is required as DirectAdmin will renew the certificate +/- 60 days after the last renewal, even when the Let’s Encrypt certificate is not installed.
This guide explains how to set up software RAID1 on an already running LVM system (Ubuntu 19.04). The GRUB2 bootloader will be configured in such a way that the system will still be able to boot if one of the hard drives fails (no matter which one).
I do not issue any guarantee that this will work for you!
Apache Tomcat is a web server and servlet container that is used to serve Java applications. Tomcat is an open source implementation of the Java Servlet and JavaServer Pages technologies, released by the Apache Software Foundation. This tutorial covers the basic installation and some configuration of the latest release of Tomcat 9 on your Ubuntu 16.04 server.
If you are on Debian or Ubuntu and using Google official repositories for Google Chrome Remote Desktop, you might have received the following error while updating your system.
E: Repository 'http://dl.google.com/linux/chrome/deb stable Release' changed its 'Origin' value from 'Google, Inc.' to 'Google LLC'
N: This must be accepted explicitly before updates for this repository can be applied. See apt-secure(8) manpage for details.
sudo apt update
And you will be prompted to accept the new Origin of the repository
Do you want to accept these changes and continue updating from this repository? [y/N]