Following my guide Open Virtuozzo [OpenVZ] installation manual for CentOS/RHEL, In this guide, I will teach you How to add a ploop device to an existing OpenVZ container. Requirements: A CentOS/RHEL machine installed with OpenVZ. Let’s Begin: Apart from the creation of the container_id.mount and container_id.umount files, where ever you see $VE_ID , replace it…Read More
What is OpenVZ?
OpenVZ (Open Virtuozzo) is an operating system-level virtualization technology based on the Linux kernel and operating system.
OpenVZ allows a physical server to run multiple isolated operating system instances, called containers, virtual private servers (VPSs),
or virtual environments (VEs).
OpenVZ is similar to FreeBSD jails and Solaris Containers.
Requirements: A Linux machine connected to the internet. Optional Requirement: A Linux machine running Nagios server (needed for running checks) What is NRPE? NRPE stands for Nagios Remote Plugin Executor. It’s a Nagios agent that allows remote system monitoring using scripts that are hosted on the remote systems. It allows for monitoring of resources such…Read More
Recently, a serious vulnerability has been discovered in the very popular OpenSSL cryptographic software library known as the heartbleed bug. This weakness allows a malicious user to steal information protected, under normal conditions, by the SSL/TLS encryption used to secure the Internet. Transport Layer Security (TLS) and its predecessor, Secure Sockets Layer (SSL), are cryptographic…Read More
In this article we’re teach you how to Install and Configure Cacti on CentOS/RHEL 6. Some info from Wikipedia: Cacti is an open-source, web-based network monitoring and graphing tool designed as a front-end application for the open-source, industry-standard data logging tool RRDtool. Cacti allows a user to poll services at predetermined intervals and graph the…Read More
This article is part 3 in a series of 3 articles regarding 18 Linux system monitoring tools you should know.
In this article we’re going to cover some built-in system monitoring tools as well as some free add-on tools
which will make your life easier when troubleshooting issues regarding Networking in your server.
This article is part 2 in a series of 3 articles regarding 18 Linux system monitoring tools you should know.
In this article we’re going to cover some built-in system monitoring tools as well as some free add-on tools which will make your life easier when troubleshooting issues regarding System.