Category Archives: Sysadmin

Get all NSX-T tags in use with Python

I was at a recent customer engagement and was asked to provide a list of all the tags in use in their NSX-T environment. I wrote them a solution using vRO and the NSX-T API but thought it would be … Continue reading

Posted in NSX, Python, Scripting, Sysadmin, VMware | Leave a comment

Using PowerCLI to Bulk Add Distributed Port Groups to a Distributed Virtual Switch

I recently had to install a couple of greenfield environments for a customer that has a very complex network layout. 100’s of VLAN‘s on their network that are consumed by vSphere VM Port Groups on Distributed Switches. Luckily the customer … Continue reading

Posted in Automation, Scripting, Sysadmin, vCenter, VMware, vSphere, Vurtualization | 1 Comment

Using Ruby to Call vRO Workflows via the REST API

There are a bunch of posts out there showing how to connect to the REST API but I found there were very few that actually showed something interesting happening. So, I figured I’d throw together an quick ruby script showing … Continue reading

Posted in Automation, Ruby, Scripting, Sysadmin, vRO | Leave a comment

Adding an isolated network to my home lab

Last week I set up a Satellite server in my home lab so I could test out deploying systems via kickstart. I wanted to kickstart the VM’s using DCHP and PXE but I didnt want the DHCP server running on … Continue reading

Posted in Home Lab, Linux, Sysadmin, Vurtualization | Leave a comment

Packstack install fails with Mongo Connection Error

Last night I was installing OpenStack Kilo using packstack via the instructions for CentOS 7 on RDO. I tried installing the stack using the following command, which should have resulted in a full OpenStack install on a single VM with … Continue reading

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Configuring Infoblox in the home lab for vRO

Infoblox’s IPAM is an awesome product for IP address management, DHCP, DNS, etc. It is used by lots of companies and is often integrated with vRA/vRO. Because of this, I have a local install of the IPAM in my home … Continue reading

Posted in Automation, Home Lab, Sysadmin, vRO | Leave a comment

Using old disks to serve data using a VM and Linux software RAID on CentOS or Red Hat 7

I have been contemplating adding a 2nd NAS storage device to my home network for a while. I currently have a Netgear ReadyNAS 2100 system with 8 TB raw storage. The ReadyNAS works terrific but I have a few old … Continue reading

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Script to Install Cacti on a CentOS or RHEL 6.5 host

I while back I wrote a post about this script and it had since broken as some updates to RHEL/CentOS and rrdtool caused the script to crash. I updated it this weekend and verified it using a CentOS 6.5 x64 … Continue reading

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Script to install Cacti on CentOS 6 or Red Hat 6

I have installed Cacti several times and it is a somewhat tedious process on a new system so I thought I would just build a small bash script to perform the install for me. This script will install everything needed … Continue reading

Posted in Automation, Linux, Sysadmin | 2 Comments

SSH Connection Sharing

I was reading a post on a perl blog the other day and leaned about connection sharing in ssh. It allows you to open a ssh connection to a server and while that 1st connection is open, all subsequent connections … Continue reading

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