Welcome back for another episode of the ABC's of NSM. What's NSM you say?
We'll go with Network and System Management, but you could throw Security in
there as well. We'll work our way through the alphabet over the next
several weeks looking at tools and concepts along the way for all the
administrators out there. By the way, you can thank Joe for the format &
Don for the title (I couldn't for the life of me come up with one.)
Today's letter U is for Umbraco, an open-source .NET based content management
system. There are no shortages of CMS platforms. However, thanks to the
excellent people behind the CMS Matrix, the heavy lifting is already done for
you. Particularly useful in the matrix is the incredibly detailed feature
listings for each of the CMS packages. This is especially helpful when
comparing two packages side by side. But I digress...back to U... (more)
DevCentral has many rock star contributors. Most are not affiliated
officially with F5 Networks, or DevCentral for that matter, but there are
several F5ers who believe in the community, and really believe in the F5
story. One of those F5ers is Matt Cauthorn, or as you know him in the
community, L4L7. You may recognize Matt as the author of pyControl. Well,
not only did he provide this entrance to a better iControl experience, he has
also delivered in a major way with his Vim plugin for editing iRules
(utilizing pyControl of course to make those calls to BIG-IP). I had toyed ... (more)
It was a little crazy, ok? Just thought I’d start by answering the obvious
question, “What happened to Day One?” I lost the trackball in my
blackberry and it’s really hard to use without that. I can navigate a
little, but some things I just haven’t been able to get to. I wanted to
tweet up the event, but alas, my technology has failed me. But I digress…
Tech Ed is my first official show with F5, so I was a little concerned about
representing the company well and providing value to the conversations with
passersby. Turns out, there’s no rocket science to this. If you believe ... (more)
I got a request yesterday morning to asking if there was a way to drop HTTP
requests if a certain number was referenced in the Accept-Language header.
The user referenced this post on Exploring Binary.
The number, 2.2250738585072012e-308, causes the Java runtime and compiler to
go into an infinite loop when converting it to double-precision binary
floating-point. Not good. Twitter is ablaze on the issue, and there is a
good discussion thread on Hacker News as well. So how do you stop it?
At first, this appeared to be a no-brainer, just copy that string and drop if
found in that... (more)
Virtualization Expo on Ulitzer
If you haven’t yet downloaded the BIG-IP LTM VE trial, I highly suggest
you do. It is a fully-functional LTM, rate-limited to 1Mbps throughput.
If you’re not familiar with virtualized environments, hopefully this blog
will fill in some blanks for how to get started on the network front.
Before downloading your VE image, you need to choose what virtualization
environment you’re installing into. The supported options in the type 1
hypervisor are VMWare ESX version 4 and ESXi version 4. For the type 2
hypervisor (requiring a host O... (more)