This is guide, howto install Oracle VirtualBox Guest Additions on Fedora, CentOS and Red Hat (RHEL). This guide should work with Fedora 27/26/25/24/23/22/21/20/19/18/17/16, CentOS 7.4/6.9/5.11, Red Hat (RHEL) 7.4/6.9/5.11. VirtualBox Guest Additions is special software that can be installed inside Linux virtual machines to improve performance and make integration much more seamless. Among the...