0993fb024232491eIn the world of Linux there are numerous ways that you can configure a Linux server to allow or deny access to a service, and while many people like to rely solely on Iptables, I wanted to take the opportunity to get my feet wet with TCP Wrappers. Note that this post is not meant to be the be-all end-all post on tcp wrappers. I am not going to review each and every configuration option, and trust me there are quite a few. Rather this is going to be a simple post which explains how to use tcp wrappers.
rhel
RHEL6 – Configuring Apache with TLS/SSL Encryption
Don't let the acronyms and the word "Encryption" scare you, its actually very easy to enable TLS/SSL in Apache. So basically it sounds more complicated than it is -- like these last two sentences for example. First you should probably know what TLS and SSL are. Well according to Wikipedia ..."Transport Layer Security (TLS) and … Continue reading RHEL6 – Configuring Apache with TLS/SSL Encryption
RHEL6 – SELinux Troubleshooting II: Electric Boogaloo
So a good while back I posted an article on how to troubleshoot SELinux violations and after reviewing that article as part of a troubleshooting exercise, I realized that I left out a few details. Needless to say my original article was not as clear as it should be. Anyway I wanted to use up a few more bytes of the internet to clarify.
RHEL6 – Using htpasswd to Create a Secure Apache Directory
Bank-vaultThe process of setting up a simple password protected web directory on an Apache server is rather easy. The simplest way to accomplish this task is to use flat-file user authentication. Disclaimer, I am not claiming that the directions below are the most complete, or the most secure. However they work and are probably the most simple.
RHEL6 -Configuring Apache Name-Based Virtual Hosts the Quick and Easy Way
irtual Hosts allow you to serve up content for more then one website from one Apache instance. In named-based virtual hosting, multiple web sites all point back to one server with one ip address. Apache itself determines which site to serve up depening on the hostname used to reach the site.
RHEL6 – Display and Modify SELinux Modes
There are three basic commands that you can use to display and modify SELinux modes. They are as follows getenforcesetenforcesestatus The first two are installed as part of the package, libselinux-utils. The sestatus is installed as part of policycoreutils. Setenforce will enable or disable SELinux temporarily. Use 0 to disable and 1 to enable as … Continue reading RHEL6 – Display and Modify SELinux Modes
RHCE Exam Objectives
Want to become an Red Hat Certified Engineer and ride around in trains all the live-long day. Well, you best get to studying and the exam is notoriously hard with a very agressive time limit. Bottom line, you walk in the door and sit down at the desk you better have a good idea of whats on the test, and your better be prepared to work fast.