Note that I am about to give you the simpletons version of registering a system. Expect nothing fancy below. In this post I will do my best to keep it brief. If you need to register newly build RHEL 7 system using Subscription Manger rather than the rhn_register command (which is pretty much deprecated) you will need to run the command as shown below. Including the option "--auto-attach" is pretty much the simplest method to register with RHN, as you do not need to keep track of any of your subscription names.
yum
Yum: Under the Covers with GPG Keys
Hey look at this spooky key. Don't be frightened little one. Nothing scary is going to happen to you here. This is a safe place. As a matter of fact, if you stick around you might just learn a thing or two. A thing or two about GPG! First off do any of us really know what GPG stands for? Well yes we do! It stands for GNU Privacy Guard. RPM Package creators use GPG to apply a digital signature to their packages. If a package was tampered with, then its GPG signature will no longer match what was placed in the original package.
RPM Package Inspection for Fun and Profit
6a00d8341c562c53ef01538f8abd65970b-800wi"Whats in the box" -- David Mills Lets face it, one of your users needs to have a package installed on a system, you tend to do it for them. That is, as long as the package looks safe. Sure, your not going to install an rpm that is clearly dangerous, but as long as the package name looks reasonable and you trust the user, you might actually just go ahead an install it for them without thinking much about it. Hell, I know that I have done the exact same thing from time to time. And I have done it with an unsigned package.
Quick and Dirty Yum Security Plugin Overview
The YUM security plugin is a package that allows you to search specifically for security patches applicable to a Redhat/Centos server. This functionality comes in very handy when having to cross reference CVEs to Redhat Security Advisories (RHSAs). If you work closely with anyone in an information security role, you already know how vital functionality is.
RHEL6 – RTFM Apache Web Server
There is a lot to know and remember about configuring Apache as you may or may not have seen from the numerous posts I have written on the subject, and the reality is that no one is going to be able to memorize each and every settings, configuration, and directive. Sure you can bing it or google it , you can even alta-vista it, but only if you have internet access at the time, however there is always a chance that you might get some bad information. So why not refer to the official httpd documentation. You know RTFM and what not.
Installing Spotify on Fedora
So Spotify is finally available in the US, which is good news for those who are getting tired of Pandora. Hell, Pandora played Celine Dion on my Hardcore Punk Radio Station the other day...wtf. So anyway, I decided to sign up and was disappointed to find that they did not have an official linux client, However they do publicize an Ubuntu client here, however, since I run Fedora this is not much interest to me.