jbmurphy.com

Author: jbmurphy

  • 2000 visitors in 1 month. Nice!

  • How the cloud failed me.

    We host our Linux boxes on Rackspace’s Cloud Server platform. We pay extra per month to use their Redhat Linux images. In return we receive all our patches and updates through Rackspace’s RHN Satellite server. Our thinking was that, we could purchase a Redhat support contract, and  since we were running Redhat we would have OS/Application support if needed. We…

  • Adventures in Load Balancing: Kemp (@KempTech)

    My current project is a migration from Exchange 2003 to Exchange 2010. We wanted to load balance our CAS servers and do some SSL offloading. I have never worked with a load balancer before – pretty cool stuff. We have been using a couple of Kemp 2600’s in an active passive configuration. The Kemp devices have…

  • Windows Server 2008 persistent routes

    I can never remember this, so I thought I would blog it route -p add XXX.XXX.XXX.0 mask 255.255.255.0 YYY.YYY.YYY.1 XXX = Network YYY = Gateway

  • Changing NIC order in 2008 R2 SP1

    I can never remember how to change the NIC order in 2008 R2. Navigate to “Networking Connections” and then hit “Alt” to bring up the menu. There you can find “Advanced” menu and the “Advanced Settings” option. There has to be an easier way, but that is the only way I know hot to get…

  • OS X: Running a script when a USB drive is inserted

    I rsync all my data to a USB drive that I keep at work. I wanted a way to have my rsync script automatically run when I plugged in the drive – kinda like Time Machine. It ended up being pretty simple. All I needed to do is create and AppleScript and attach it to…

  • Running a BASH script when my Laptop is opened at home – Part 2

    As I mentioned in this post I should be able to run a script to find my current gateway’s MAC address. With this info, I should be able to tell when I am home, and launch a script. In this post, I talk about sleepwatcher, which runs a script when the machine is woken up. Sleepwatcher…

  • How to remove a machine from a RHN Satellite

    I wanted to move a VM from a RHN Satellite back to the default Red Hat Network. I found these two files contained all the info: /etc/sysconfig/rhn/up2date /etc/sysconfig/rhn/systemid I just moved them aside and ran rhn_register to re-register the system. Then I ran “yum clean all” to make yum happy

  • Rebuild your the default CentOS yum.repo.d folder

    On a dev machine, somehow, I managed to erase my yum.repo.d contents. I wanted to rebuild the repo files back to their default. First you need to figure out what version you are using: cat /etc/redhat-release Then visit the correct release at : http://vault.centos.org/ navigate to the correct os/x86_64/CentOS/ directory (could be os/x86_64/CentOS/ i386/) Download the following files to…

  • Install VMware ESX4.1 via PXE

    We recently received 2 new servers that I needed to install the newest ESX on. I downloaded the IOSs, but I did not want to have to burn them. So I decided to try and install ESX via PXE. I did not have an answer file (kickstart), so I wanted to run an interactive install from PXE.…