If you look up the word virtualize in a dictionary, you will find that it means “to create a virtual (rather than actual) version of something”. In computing, the term virtualization refers to the
We will begin this article by outlining some LDAP basics (what it is, where it is used and why) and show how to set up a LDAP server and configure a client to authenticate
During this series we have explored in detail at least two access control methods: standard ugo/rwx permissions (Manage Users and Groups – Part 3) and access control lists (Configure ACL’s on File Systems –
Linux servers are rarely standalone boxes. Whether it is in a datacenter or in a lab environment, chances are that you have had to install several machines that will interact one with another in
In simple words, a firewall is a security system that controls the incoming and outgoing traffic in a network based on a set of predefined rules (such as the packet destination / source or
In this article we will review how to install, update, and remove packages in Red Hat Enterprise Linux 7. We will also cover how to automate tasks using cron, and will finish this guide
A web server (also known as a HTTP server) is a service that handles content (most commonly web pages, but other types of documents as well) over to a client in a network. A
As a system administrator you will often have to log on to remote systems to perform a variety of administration tasks using a terminal emulator. You will rarely sit in front of a real
In the last article (RHCSA series Part 6) we started explaining how to set up and configure local system storage using parted and ssm. We also discussed how to create and mount encrypted volumes
In this article we will discuss how to set up and configure local system storage in Red Hat Enterprise Linux 7 using classic tools and introducing the System Storage Manager (also known as SSM),