Photo by Pixabay on Pexels.com EDIT: I posted a TL;DR version of this (including screen-shots!) as a LinkedIn article here: https://www.linkedin.com/pulse/making-changes-git-repository-access-codeready-workspaces-vic-cross. If you've come here from that article, thanks for your interest in the details of my experience! As part of the setup of an environment for a customer workshop, I installed Red Hat CodeReady … Continue reading Making changes to Git repository access in CodeReady Workspaces
Category: Networks
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
I made a somewhat cryptic tweet a little while ago about how I spent a crazy-long period of time researching what was, I believed, the next-big-thing in DNS resolution for IPv6 (or so my 2002 edition of "IPv6 Essentials" told me). I could not work out why I saw nothing about A6 records in any … Continue reading Another IPv6 instalment (subtitled: Watch Your Tech Library Currency!)
Two of the four keynotes at LCA 2011 referenced the depletion of the IPv4 address space (and I reckon if I looked back through the other two I could find some reference in them as well). I think there's a good chance Geoff Huston was lobbying his APNIC colleagues to lodge the "final request" (for … Continue reading IPv6: SSDM?
I've been using Nagios for ages to monitor the Crossed Wires campus network, but it's fallen into a little disrepair. Nothing worse than your monitoring needing monitoring... so I set about tidying it up. Network topology changes, removal of old kit, and some fixes to service checks no longer working correctly. One of the problems … Continue reading Nagios service check for IAX
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.
I've been doing a lot of mucking around with KVM with libvirt (I keep promising an update here, don't I). In my desktop virtualisation requirements I had a need for presenting VLAN traffic to guests: simple enough, and I've done it before. You can do what I usually do, and configure all your VLANs against … Continue reading Network virtualisation
I'm having a bit of an infrastructure redesign here at the Crossed Wires campus. Each time I have an outage (the last one was caused by a power failure) I learn a little more about the holes in my current setup and what I can do better. I'm implementing a router box on an old … Continue reading LDAP-backed DNS and DHCP…?
Over the last fortnight I finally got the wriggle-on to upgrade all my (K)Ubuntu systems to Hardy Heron. Various issues occurred with each of them, but overall the entire exercise went smoothly (my wife's little old Fujitsu Lifebook was probably smoothest of the lot). I had one rather vexing issue however, on my old (I'm … Continue reading Ubuntu 8.04 Wireless Weirdness
I wrote about Zeroshell, and how I thought it was pretty great. I still do, but it hasn't taken centre-stage in my network configuration like I thought it would. I've had to tone down my raves about some of its integrated features as well. The fact that it hasn't taken centre-stage is possibly as much … Continue reading Zeroshell redux
Crossed Wires 