Finding variable collision in Ansible from group_vars
When you start building large complicated Ansible deployments the likely hood that your using group_vars in new and exiting ways is VERY high due to »
Auto tests patches for OpenStack-Ansible with OpenStack
If you have access to an OpenStack cloud that can accept user-data then spinning up a test node for a given patch is super simple. All »
Auto-deploy an OpenStack-Ansible using "nova boot" with user-data
Building an OpenStack-Ansible test deployment within an OpenStack cloud has never been simpler; just boot the node, pass some user-data, profit! Before building instances, check the »
Getting access to a telnet console on IPv6
Within the OpenStack infra system we're now seeing gate jobs run on clouds using IPv6 as the public interface; The Rackspace and Intel cloud (OSIC) is »
IPv6 temporary addresses and busted networks
When deploying IPv6 on an OpenStack cloud it may be useful to disable IPv6 privacy extensions within the instance to ensure there's nothing being assumed within »
Converting interfaces to jumbo frames
When converting to Jumbo Frames from a standard MTU the tap and tunnel devices will need to be updated to use the new larger MTU. Tap »
Checking for a full(ish) disks with Ansible
While Ansible is great for deployment and configuration purposes, it can also be an amazing operational tool. One common task in an environment is to check »
RCBOPS Stack in a BOX
So you want to try OpenStack? Want to build a cloud? Want to try OpenStack? Curious how the OpenStack Cloud eco system all works? In the »
Debian LNMP on a Cloud Server
So you have decided to get a Cloud Server and you want to install a LNMP stack on your server. This is a total possibility and »
Chris Dodd went on Fox News
Chris Dodd went on Fox News to explicitly threaten politicians who accept MPAA campaign donations that they'd better pass Hollywood's favorite legislation. He stated : Those who »
Cloud Server Migration
Here is what this Tool / Article Does This write up and script will migrate any Linux instance from one place to another. While there are always »
Building a better Cloud
Thoughts on Building a better Cloud Over the past few weeks I have been asked several times how I would setup a new infrastructure using the »
XenServer upgrade failed to boot
Virtual Instance Fails to boot after an upgrade If you have upgraded your installed Linux Virtual Machine, and it no longer boots you may have FooBar'd »
Monitoring Network Traffic in Linux
Basic but Essential Network Monitoring Basic Administration principles state that you, the administrator, should have a strong grasp on what your server is doing at all »
Calculating Possible Bandwidth in by Link Speed and hours active
So you want to calculate what the possible bandwidth is for a specific Network Interface on an hourly basis. I have written a simple BASH script »