I was introduced to the z/VM hypervisor in the early 2000s, around the time that IBM announced formal support for Linux on the System/390 family (earlier in my career I had heard of something called "VM/ESA", and thought it sounded cool). I was part of the team that wrote the "ISP/ASP Solutions" IBM Redbooks publication, … Continue reading z/VM Express System Installation (ESI)
Tag: z/VM
I have been using LDAP as a central data store for a very long time. Back when I had a home Asterisk PBX, I had an LDAP directory that functioned as a household phone book and source of caller-ID data for the IP phones installed through the home. This LDAP directory was also the authentication … Continue reading LDAP on z/VM as an Open Authentication Source
It's been a long time since I wrote here. The earlier content you see here actually came from my previous blogs at veejoe-dot-com-dot-au and later viccross-dot-com, both of which for various reasons are... no longer available. So why relaunch? Well, mostly because I still have things to say! I have not decided exactly what yet, … Continue reading Relaunching… again
My Linux-based Large-Scale Cloning Grid experiment, which I've implemented four times now (don't ask, unless you are ready for a few looooooong stories), has three main components to it. The first, which provides the magic by which the experiment can even exist, is the z Systems hypervisor z/VM. The second is the grist on the … Continue reading Programming decisions
It's easy to treat a silly slogan on a coffee mug as little more than just a few words designed to evoke a wry grin from a slightly antisocial co-worker. Sometimes it can take on a deeper meaning, if you let it.
Earlier this year (30 March, to be precise) Oracle announced that Oracle Database 11gR2 was available as a fully-supported product for Linux on IBM System z. A while before that they had announced E-Business Suite as available for Linux on System z, but at the time the database behind it had to be 10g. Shortly after 30 … Continue reading Oracle Database 11gR2 on Linux on System z
The next phase in tidying up my user authentication environment in the lab was to enable SSL/TLS on the z/VM LDAP server I use for my Linux authentication (I'll discuss the process on the DeveloperWorks blog, and put a link here). Apart from being the right way to do things, LDAP authentication appears to require SSL or TLS in … Continue reading What a difference a working resolver makes
In 2009 I was part of the team that produced the Redbook "Security for Linux on System z" (find it at http://www.redbooks.ibm.com/abstracts/sg247728.html ). Part of my contribution was a discussion about using the z/VM LDAP Server to provide Linux...
I realised I never came back and reported the results of my OpenSSL "speed" testing after our 2096 got upgraded. For reference, here was the original chart, from when the system was sub-capacity: ... and the...
I posted on my developerWorks blog about an experience I had sharing an OSA port in Layer 2 mode. Thrilling stuff. What's more thrilling is the context of where I had my OSA-port-sharing experience: my large-scale Linux on System z cloning experiment. One of these days I'll get around to writing that up.
Crossed Wires 