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Beginning with BIG-IP version 11.2, you may have noticed a new package in the Virtual Edition downloads folder for vCloud Director 1.5. VMware’s vCloud Director is a software solution enabling enterprises to build multi-tenant private clouds. Each virtual datacenter has its own resource set of cpu, memory, and disk that the vDC owner can allocate as necessary. F5 DevCentral is now running in these virtual datacenter configurations (as announced June 13th, 2012), with full BIG-IP VE infrast...
iApps, introduced in v11, have a primary function in controlling the object creation and management for an application delivered by BIG-IP. As discussed previously, however, anything that can be accomplished in TMSH can be done in an iApp, so what better way to quickly generate checksums on iRules than via an iApp. New in v11.1, you can add either a checksum or a digital signature to an iRule (but not both). For iRules that have been signed or had a checksum applied, there will be a line immedia...
ARX (Adaptive Resource Switch) is a filesystem virtualization switch, which provides intelligent file virtualization for storage environments. ARX can be used to tier files across multiple filers, provide disaster recovery services, and allow administrators to migrate files between backend filers without disruption of service. These are a few of the use cases for ARX, but by no means all of them. Over the next few months, we will be covering ARX heavily here on DevCentral. Let’s get started by d...
articleapmsecuritynewstechtip April 20, 2011 by Jason Rahm
In my spare time, I do volunteer IT work and for quite some time my users have used the SSL-Explorer fork AditoVPN to get remote access to their work machines remotely.  Adito does the job, but it requires a server (albeit virtual, but still) that must be maintained, seems to have been forked again (OpenVPN ALS) and occasionally locks up and requires more hands-on attention than I really have time for.  I bought a copy of LTM VE last year to handle the web/mail services and was excited...
BIG-IP LTM supports internal and external classes (called Data Groups in the GUI) of address, string, and integer types.  An internal class is stored in the bigip.conf file, whereas external classes are split between the bigip.conf and the file system (the class itself is defined in the bigip.conf file, but the values of the class are stored in the file system in a location of your choice, though /var/class is the location defined for synchronization in the cs.dat file)  Which flavor?&...
Last month I ran across a blog entry by Extreme Geekboy discussing a patch (now in the most recent nightly forthcoming 4.0 builds) for Firefox he submitted that implements the user agent components of HTTP Strict Transport Security.  Strict Transport Security, or HSTS (or STS if that extra character is taxing to type) is an internet draft that allows site owners to specify https as the only acceptable means of accessing the site.  This is accomplished by the site inserting a header tha...
So now that we've got a vLTM installed and running, what can we do with it... There's a lot of examples out there of perl, python and Java. But not a lot of C...   I've also got an iPhone... Sadly we can't use my favourite SOAP programming language on the iPhone. In case you're wondering that's perl. Why perl? Well, mainly I'm a bit lazy, and perl does everything for you... Obviously you're more productive when that's the case, and the SOAP::Lite module has spoiled me for years I'm afraid...
Introduction The LTM VE is a lifesaver when it comes to developing applications that use the iControl interface, or for development of iRules. My main (personal) use of it so far is the development of applications that use the iControl interface. Although a real LTM appliance has until now been the obvious choice of development target, the sheer cost of dedicated hardware is a big barrier to independent developers. In this respect the LTM VE comes into its own as an easy to use anywhere device....
Having LTM-VE is nice, but setting things up so that you can actually use it for something is a different matter. There is a lot of information floating around out there about configuration ranging from Joe's Tech Tip to Lori's Architecture Reference to deployment guides. This article focuses on setting up a VMWare team that includes your BIG-IP and some test servers. Since I wanted this to be something you can re-create, all of the servers utilized in this Tech Tip are clones of a straight-for...
Introduction So, you've probably read all about the BIG-IP LTM VE.  You've gone through the download process and got the thing configured and running in VMWare.  You've even gone through the initial configuration steps to get the management port configured and got the thing licensed up.  Now what?  Well, we've got a bunch of examples of firing up separate VM instances of host operating systems so that you can test creating pools of servers with those other VM instances. ...
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