September 14, 2015

Zimbra 8.6: Bayesian Poisoning

Let me start by saying that this problem is not unique to Zimbra and it certainly isn’t unique the version 8.6, however I was using Zimbra 8.6 when I ran into this problem, so this is how I fixed it. What is Bayesian Poisoning? One of the core tenants of spam filtering using Bayesian probability to increase or decrease a particular messages score based on the […]
March 4, 2015

Fedora 20: Firefox Reports Flash as Vulnerable

This problem starts with Firefox reporting that your flash-plugin is out of date.  This report looks like this and disables all flash. After this we will take a look Mozilla’s Plugin Check to see what it thinks is going on. Now here we can see that version 11.2.202.440 is vulnerable.  We will then check about:plugins to see if it agrees. Again this is also reporting […]
February 26, 2015

BlackBerry Z30: No Update to 10.3.1

I have a BlackBerry Z30 (STA100-5) which I was excited to updated to the latest release of BB10, which was announced on February 9, 2015 (link).  However when I was attempting to install the update over the air, it kept telling me that I was already on the latest version.  This was obviously incorrect (I was on 10.2.1.3062 which is the latest prior to 10.3.1). […]
December 17, 2014

SPARC Logical Domains: Alternate Service Domains Part 3

In Part One of this series we went through the initial configuration of our Logical Domain hypervisor, and took some time to explain the process of mapping out the PCI Root Complexes, so that we would be able to effectively split them between the primary and an alternate domain. In Part Two of this series we took the  information from Part One and split out […]
December 16, 2014

SPARC Logical Domains: Alternate Service Domains Part 2

In Part One of this series we went through the initial configuration of our Logical Domain hypervisor, and took some time to explain the process of mapping out the PCI Root Complexes, so that we would be able to effectively split them between the primary and an alternate domain. In Part Two (this article) we are going to take that information and split out our […]
December 15, 2014

SPARC Logical Domains: Alternate Service Domains Part 1

In this series we will be going over configuring alternate I/O and Service domains, with the goal of increasing the serviceability the SPARC T-Series servers without impacting other domains on the hypervisor.  Essentially enabling rolling maintenance without having to rely on live migration or downtime.  It is important to note, that this is not a cure-all, for example base firmware updates would still be interruptive, […]
December 9, 2014

SPARC Logical Domains: Live Migration

One of the ways that we are able to accomplish regularly scheduled maintenance is by utilizing Live Migration, with this we can migrate workloads from one physical machine to another without having service interruption.  The way that it is done with Logical Domains is much more flexible than with most other hypervisor solutions, it doesn’t require any complicated cluster setup, no management layer, so you […]
December 8, 2014

Solaris 11: Configure IP Over Infiniband Devices

In this article we will be going over the configuration of an infiniband interface with the IPoIB protocol on Solaris 11, specifically Solaris 11.2 (previous versions of Solaris 11 should work the same, however there have been changes in the ipadm and dladm commands). Identify Infiniband Datalinks First we need to identify the underlying interfaces of the infiniband interfaces.  In my case net2 and net3. […]
December 1, 2014

Adventures in ZFS: Mirrored Rpool

It always makes sense to have a mirrored rpool for your production systems, however that is not always how they are configured.  This really simple procedure is also critical. Create a Mirrored Zpool Check the existing devices to identify the one currently in use. Once we know which one is currently in use, we need to find a different one to mirror onto. Then we […]
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