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AWS CLI Cheat Sheet

August 14, 2018 – 4:18 pm

The installation and configuration process for AWS CLI is fairly simple. The package itself is installed with pip (yum -y install python-pip):

The Mystery of a Hemisphere

July 31, 2018 – 4:00 pm

To make this long (and embarrassing) story short: a friend’s kid had a homework assignment in geometry to calculate the surface area of a conjoined cone, a cylinder, and a hemisphere.

Get a List of all ESX Hosts in a Datacenter

April 17, 2017 – 3:18 pm

Another simple one-liner to get a list of hostnames of all ESX servers in the vCenter. This can be useful for a number of things, specifically as input for other PowerCLI scripts.

Use PowerCLI to Change NIC Type

April 17, 2017 – 11:52 am

This is a quick PowerCLI script that reads from a list of VM names and for each VM with network adapter type “E1000” changes it to “Vmxnet3”. Nothing fancy, no reboot is needed. MAC should …

Sample Salt Proxy Configuration for vCenter/ESX

March 20, 2017 – 4:15 pm

The Salt proxy agent is a relatively new feature of Salt allowing to control networked devices where salt-minion cannot be installed directly. The official Salt documentation on the subject is outdated and full of syntax errors. It’s actually …

Configure and Run esxcli on Red Hat

March 20, 2017 – 3:58 pm

The esxcli utility is used to interface with the vSphere and ESX hosts. It is a useful tool for getting to some basic VMWare functionality from Unix shell. It is also a pre-requisite for some of …

Managing VMs with PowerCLI

February 20, 2017 – 5:45 pm

Below is a collection of useful Power-CLI one-liners (or thereabouts) that can speed up your script-writing efforts. As everything Windows, things change often and for no obvious reason, so expect to see type is deprecated and …

Copying a VM between VCenters

November 12, 2016 – 6:13 pm

I had a little task: clone an operational VM from one VCenter to another. Normally, for such a task I would use the Standalone Converter. Unfortunately, this time I ran into an annoying SSH key …

Fixing NIC Name in Cloned VMWare Linux Machines

June 28, 2016 – 12:32 pm

A suspected bug with certain versions of VMware ESX causes cloned Linux VMs to obtain a sequentially-number NIC. For example, if the parent VM had eth0, the clone will have eth1, and the clone of …

VMWare VMDK Locked Error

May 21, 2016 – 10:27 pm

So, being a Unix admin on-call for the week, I just spent half of my Saturday fixing a dead Windows VM. Very annoying. The best I can tell, the issue occurred during the snapshot operation. …

VMware vCenter Converter Standalone Notes

October 9, 2013 – 11:28 am

The vCenter Standalone Converter is a handy app you can run on your Windows or Linux PC to to P2V a remote server. As convenient as the Converter is, there are a few gotchas that …