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CentOS 7 has been released on July 07 2014, based on upstream EL7. This is the major release after the merger with Open Source Leader Redhat Inc. There are many changes in the recent release, compared to CentOS 6. For the first time, there is a supported upgrade from CentOS 6 to CentOS 7. The […]
VirtualBox Extension Pack is a set of open-source components that extends the functionality of the VirtualBox base package. Oracle provides the one extension pack, and it provides the following added functionality. The virtual USB 3.0 / 2.0 device VirtualBox Remote Desktop Protocol (VDRP) Disk image encryption with AES algorithm Host webcam pass through. Intel PXE […]
YUM is the package management tool that helps to install or update the package through the network or local, the same time it provides an easy method to install a package with its dependent packages. Configuration files are under /etc directory, /etc/yum.conf is the mail global file that contains the global options such as cache […]
In the last article, we discussed the installation of Nagios server on CentOS 8, CentOS 7, Ubuntu 18.04 / 16.04, and Debian10 / 9. Here, in this post, we will add Linux host to the Nagios monitoring tool using the NRPE plugin. I’m assuming that you have a working Nagios setup, if not, use any […]
SELinux is a set of extra security restrictions on top of the normal Linux security tools. It gives the systems administrator a finer grain of control than what the kernel typically provides. Here is the small guide for disabling SELinux on CentOS 7/6 / RHEL 7/6. Switch to the root user. $ su – Edit […]