This Virtualbox tutorial will show you how to take a snapshot on Virtualbox. First you will see how to take a snapshot of a running virtual machine. You will then see how to restore the snapshot. Snapshots allow you to save the state of a virtual machine; this can be useful when you want to test something, or you’re about to make a change to that virtual machine, and you need to be able to roll back to a working instance. Snapshots have saved me on numerous occasions and are an excellent feature!
This Video will show you how to solve the error: unable to open primary script permission denied on Centos 8.
In this video i was trying to install moodle and when i went to access the site, I kept getting an error. In the Apache logs i could see the error: unable to open primary script: ‘Unable to open primary script varwwwhtmlmoodleindex.php (Permission denied)
When i delved into the error i could see that it was selinux was causing the issue.
You can disable selinux on the fly by entering: sudo setenforce 0
but to permanently disable you should edit the/etc/selinux/config file and
This video will show you how to SSH into a VirtualBox Machine. This video is using CentOS although the concepts should be much the same for other Linux Distros. This Linux Tutorial shows you what do to when you can’t SSH into VirtualBox Machine. First you will need to power off your VM. Next you will need to right click, settings, click network, select adopter 2 and enable VirtualBox host only adapter. Once done you will need to power on the machine. Next you will need to make sure that this new connection has an IP address. In CentOS this is done by creating a new network connection in the /etc/sysconfig/network-scripts folder. We then configure this network have a DHCP IP address and restart the network connection. Once done we restart the network, and SSH in to our machine.