March 30

Quick – I Need an OpenVPN Server!

#This install assumes CentOS/Redhat/Fedora   SERVER SETUP: sudo yum update # net-tools install resolves errors explained later sudo yum install net-tools vim screen wget firewalld sestatus #change selinux=disabled sudo vim /etc/selinux/config   FIREWALL SETUP: sudo systemctl enable firewalld sudo service firewalld start sudo firewall-cmd –state sudo firewall-cmd –get active zones sudo firewall-cmd –list-all sudo firewall-cmd.

September 9

AWS Strategy – iRedMail Server

CREATE INSTANCES FOR IREDMAIL: Create AWS account – some instances are free for one year AWS – create EFS to store all emails NOTE: make it private with no public IP address AWS – create EC2 using RH7 (see supported distributions) NOTE: make it public, but note both public & private addresses NOTE: the free.

September 7

AWS Strategy – Webpage Server

AWS Strategy – Webpage Server

SECURITY GROUPS – Create one for each service (isolate IPs accordingly) RDS instance (mysql – set security group to only MySQL) EFS instance (keep logs .conf and http files) EC2 instance (the engine that runs the show) Linux login – log in with new .pem file Linux update – sudo yum -y update Linux EFS.

December 6

The [ERROR] of my ways

The [ERROR] of my ways

——————————————————————— – OVERVIEW / THOUGHT PROCESS – ——————————————————————— This post is simply an eclectic mixture of the various ERROR messages I run into on a daily basis.  Maybe this will help someone as they’re googling for their answers one day. Enjoy! ——————————————————————— – APACHE FAIL (FQDN) – ——————————————————————— ERROR: shell> service httpd restart Stopping httpd:.

December 1

MySQL Replication (the easy way)

MySQL Replication (the easy way)

——————————————————————— – OVERVIEW / THOUGHT PROCESS – ——————————————————————— Recently, there was a hardware failure on my primary mail server, which left me (and my clients) without email for an entire day.  Although it was possible to use one of my backups to get us up and running again, I decided to take another route.  After.

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.