Archives January 2010

How to Configure Eaton Ellipse ASR UPS with CentOS 5

Here's a quick post showing how to configure and setup an Eaton Ellipse ASR 1500 UPS with CentOS 5 using NUT in about 5 minutes flat!

Firstly install NUT. To do that we'll need to install Fedora EPEL.

# rpm -Uvh

Then we install NUT.

# yum install nut
# chkconfig ups on

Add the following to /etc/ups/ups.conf.

    driver = usbhid-ups
    port = auto
    desc = "Eaton Ellipse ASR 1500"

Add a UPS user to /etc/ups/upsd.users. Please change your password to something sensible.

            password ...

— Andrew

How to Virtualize Windows 2008 SBS with Xen on CentOS 5

Installing Windows SBS 2008 as a Xen Fully Virtualized guest using the XEN hypervisor on CentOS 5 is fairly straight forward.


Starting off we need a CentOS 5 server with at least 4GB of free RAM and enough hard disk space to support SBS. The processors must support x86 Virtualization either Intel VT or AMD V. Virtualization must also be enabled in the system BIOS. If you server supports Hyper-threading you may want to turn it off, as this might improve performance with a Windows 2008 VM. The Xen hypervisor presents the individual hyper-threaded cores as physical cores to ...

— Andrew

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