September 7

VMWare Networking (eth0 vs eth1)

VMWare Networking (eth0 vs eth1)

——————————————————————— – OVERVIEW / THOUGHT PROCESS – ——————————————————————— One of the best and most efficient ways to have a test network is to use VMWare (or any virtual machine) software to create test computers. In this particular case, I was creating a CentOS 6.4 machine similar to my active webserver to test against. As is.

August 11

Password Protect Your Web Directory (apache)

Password Protect Your Web Directory (apache)

Have you ever just wanted to protect something on your web server.  Perhaps there’s a sensitive web page that you created like a blog that you only want certain people to see.  Well, here’s how you do it!  This will be written for a Fedora/Red Hat/CentOS platform, but will work on any apache web server.

July 28

Sendmail rejected — Default CentOS Installation

Sendmail rejected — Default CentOS Installation

——————————————————————— – OVERVIEW / THOUGHT PROCESS – ——————————————————————— After completing a brand new minimal install of CentOS 6.4, I configured the installation to be a web server using apache, mysql and sshd for remote access.  After configuring a website on the box, I attempted to send an email from the local webpage, but never received.

June 26

IP Subnetting — let’s figure it out!

IP Subnetting — let’s figure it out!

——————————————————————— – OVERVIEW / THOUGHT PROCESS – ——————————————————————— IP address subnetting is actually pretty easy when you understand the individual components.  In this writing, I’ll attempt to give you the tools to understand those components so that you can take any subnetting scenario to a logical conclusion.  This will only be a novice view, so.

June 10

APPLE: They’ve Done It Again!

APPLE: They’ve Done It Again!

I just got finished watching the key-note address from their World Wide Developers Conference, which I watch every year without fail. This conference’s key-note was one of the most enjoyable that I’ve ever seen! Their innovation knows no bounds, and here’s some of the highlights: – An all new architecture for battery life in their.

June 2

Public/Private Key as User/Root

Public/Private Key as User/Root

Sometimes it’s the small things that are fun to think through.  I was recently transferring a plethora of files between two servers, so I set up a private/public key to avoid typing in a user password every time I hit enter. I usually use the secure copy (scp) command to transfer files via command line,.

May 22

Server Migration (httpd.conf & mysql)

Server Migration (httpd.conf & mysql)

——————————————————————— – OVERVIEW / THOUGHT PROCESS – ——————————————————————— The following will be a small experiment to answer some questions that have peaked my curiosity. In this scenario, I have two separate CentOS servers with two different public IP addresses. Both have SSH enabled through the firewall and I need to move multiple websites from server.

May 15

IP Tables (explanation in efficiency)

IP Tables (explanation in efficiency)

——————————————————————— – OVERVIEW / THOUGHT PROCESS – ——————————————————————— IP Tables are a set of rules that you define to allow or reject network traffic from entering into your system. The ones that I am referring to are for a UNIX (Linux) type system.  As a default, the IP Tables specify what’s called an ‘implicit deny’.

April 13

WordPress Attack!!! Let’s take a look

WordPress Attack!!!  Let’s take a look

——————————————————————— – OVERVIEW / THOUGHT PROCESS – ——————————————————————— Recently, an article was written regarding a massive attack on WordPress sites through an array of linked computers. The analogy was that one (1) fire hose could be pointed at a brick wall with no destruction… but hundreds and even thousands of fire hoses pointed at that.

March 28

Welcome Home Dot Com!

NOTE:  This writing assumes that you use a Linux distro of either Red Hat, Fedora, or CentOS.  Other distributions may have a different location for webpage hosting files and/or configuration files.  It further assumes that you have already installed all of the appropriate services on your server in order to make this work.  If you.