If you are using Linux Distro (Ubuntu in my case) and when you try to run VirtualBox, you might get the following error : VirtualBox can’t operate in VMX root mode. Please disable the KVM kernel extension, recompile your kernel and reboot (VERR_VMX_IN_VMX_ROOT_MODE). or something like VT-x is being used by another hypervisor (VERR_VMX_IN_VMX_ROOT_MODE).
Recently, I moved some of my virtual machines to new place. By doing that, I figured out that my Centos linux server, was unable to connect to internet and was not getting any ip address. Therefore, when I did ifconfig command, the interface name was changed from eth1 to eth0. In this post, I will […]
As promise, in this post, we will be adding a local host (on the same network) and monitor with NRPE plugin. It is very easy and efficient way to do when you can connect to the machine directly. Before beginning, make sure your current Nagios Server is up and running.
In this post, we will be adding a simple configuration for a localhost server Nagios. It will be very easy as we will be using nagios sample configuration. Therefore, before starting, make sure you have ssh-connection to the server and also Nagios server is installed and running as well. Let’s get started…
When you install, the system will generate all default password but it is very important that you change those passwords. Even when you log in to FreePBX web page, there are some notices saying that you have to change those passwords. This topic will guide to accomplish this task.