Securing VPS/Servers

How to Configure a Firewall with UFW What is UFW? UFW, or uncomplicated firewall, is a frontend for managing firewall...

How to Use GPG Keys to Send Encrypted Messages What is GnuPG? GNU Privacy Guard (GnuPG), also known as GPG,...

Download a Local Copy of your Linode Backup The Linode Backups service can create automatic and manual snapshots of your...

How to use a YubiKey for Two-Factor Secure Shell Authentication What is Yubikey? YubiKeys are small USB dongles that you...

How to Upgrade to Ubuntu 18.04 LTS (Bionic Beaver) Ubuntu 18.04 is a Long-Term Support (LTS) release that will be...

Disabling SSLv3 for POODLE Padding Oracle On Downgraded Legacy Encryption (POODLE) was released with the CVE identifier of CVE-2014-3566. The...

Install OpenVAS 8 on Ubuntu 16.04 OpenVAS, the Open Vulnerability Assessment System, is a framework of tools that allow you...

Backing Up Your Data If you store any customer or personal data on a Linode, it’s important to make regular...

How to Use LUKS for Full Disk Encryption on Linux Using LUKS encryption to Create a Secure Disk on Debian...

Use One-Time Passwords for Two-Factor Authentication with SSH on CentOS 7 In this guide, you’ll learn how to use one-time...