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Networking Lee Briggs (formerly of Pulumi, now with Tailscale) shows how to use the Tailscale Operator to create “free” Kubernetes loadbalancers (“free” as in no additional charge above and beyond what it would normally cost to operate a Kubernetes cluster). Think Linux doesn’t have malware?
Bruce Davie and Martin Casado (with Nicira, now part of VMware) have written a post comparing the VXLAN and STT tunneling protocols. This VMware blog post helps explain the link between Puppet and vFabric Application Director, and why organizations may want to use both. Ben Armstrong shows how here. Technology Short Take #29.
Speaker: Martin Casado (VMware Networking CTO). You can save money if you consolidate your Windows & Linux workloads to fewer servers. You can save money if you consolidate your Windows & Linux workloads to fewer servers. The Second are is the higher level layers such as loadbalancing.
Some folks from Nicira (now part of VMware) recently published a blog post discussing the OVSDB IETF draft (see here ). If storage is your thing—especially in VMware environments—I’d recommend having a look at Cormac Hogan’s blog for his series on vSphere 5.1 Networking. storage enhancements. It starts here.
Humair Ahmed of VMware shares some details on a new control plane resiliency feature recently added to VMware NSX: Controller Disconnected Operation (CDO) mode. Here’s a handy list of deprecated Linux network commands and their replacements. Konstantin Ryabitsev has a series going on securing a SysAdmin Linux workstation.
I have a fairly diverse set of links for readers this time around, covering topics from microchips to improving your writing, with stops along the way in topics like Kubernetes, virtualization, Linux, and the popular JSON-parsing tool jq. Michael Kashin shares the journey of containerizing NVIDIA Cumulus Linux. Networking. So useful.).
The rise of the disaggregated network operating system (NOS) marches on: this time, it’s Big Switch Networks announcing expanded hardware support in Open Network Linux (ONL) , upon which its own NOS is based. I use OTR with Adium on OS X, and OTR with Pidgin on my Fedora Linux laptop.). Servers/Hardware. Check this out. Virtualization.
Romain Decker has an “under the hood” look at the VMware NSX loadbalancer. This graphical summary of the AWS Application LoadBalancer (ALB) is pretty handy. Vladan Seget shares how to create a VMware ESXi ISO image with the latest patches. Servers/Hardware. Nothing this time (sorry!).
This year the event is back at Moscone Center in San Francisco, and VMware has already released some juicy news (see here , here , and here ) in advance of the keynote this morning, foreshadowing what Pat is expected to talk about. He talks about how VMware works to do “good engineering” and “engineering for good.”
Xavier Avrillier walks readers through using Antrea (a Kubernetes CNI built on top of Open vSwitch—a topic I’ve touched on a time or two) to provide on-premise loadbalancing in Kubernetes. Steven Bright shows how to deploy Salt minions automatically using VMware Tools. Servers/Hardware. Cabling is hardware, right?
Looking for a step-by-step install guide for VMware NSX? Ray Budavari—who is an absolutely fantastic NSX resource—has a blog post up on the integration between VMware NSX and vRealize Automation. If you’d like to play around with Cumulus Linux but don’t have a compatible hardware switch, Cumulus VX is the answer. Networking.
Via Ivan Pepelnjak, I was pointed to Jon Langemak’s in-depth discussion of working with Linux VRFs. The first is a post on Cilium and F5 loadbalancer integration , while the second discusses implementing Kubernetes network policies with Cilium and Linkerd. Networking. One, the content is useful in and of itself.
I have a fairly diverse set of links for readers this time around, covering topics from microchips to improving your writing, with stops along the way in topics like Kubernetes, virtualization, Linux, and the popular JSON-parsing tool jq along the way. Michael Kashin shares the journey of containerizing NVIDIA Cumulus Linux.
Russell Bryant has a couple great articles on OVN— how to test OVN’s “EZ Bake” release with DevStack as well as an article on implementing OpenStack security groups using OVN ACLs (which in turn leverage the integration between Open vSwitch and the Linux kernel’s conntrack module). In case you missed it, Docker 1.9 Docker and Solaris Zones?
Vincent Bernat has a really in-depth article on IPv4 route lookup on Linux (and one on IPv6 route lookup as well). Massimo Re Ferre has a great article discussing VMware Cloud on AWS versus Azure Stack and breaking down the differences between the two approaches. Ivan Pepelnjak speaks frankly about VMware Cloud on AWS.
The “TL;DR” for those who are interested is that this solution bypasses the normal iptables layer involved in most Kubernetes implementations to loadbalance traffic directly to Pods in the cluster. Anthony Spiteri shares a Terraform configuration he created to deploy a sandbox Kubernetes cluster on VMware vSphere.
The “gotcha” is that these software stacks haven’t been written yet, so the idea of repurposing hardware from switch to firewall to loadbalancer is still a bit of a unicorn. Here’s a nice article on a multi-action security workflow built using VMware NSX, vShield Endpoint, and vCenter Orchestrator. Servers/Hardware.
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