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  • Why Automate? Reliability Approaches with the VMware NSX-T API

    calendar Nov 24, 2021 · 11 min read · Home Lab Continuous Delivery JSON NSX-T Network Automation  ·
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    Why should an infrastructure engineer leverage REST APIs? I'm sure most IT workers have at least heard of REST APIs, or heard a sales pitch where a vendor insists that while a requested functionality doesn't exist, you could build it yourself by "using the API". Or, participate in discussions where people …


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  • Get rid of certificate errors with Avi (NSX-ALB) and Hashicorp Vault!

    calendar Oct 10, 2021 · 7 min read · Load Balancing TLS VMWare Network Security Avi NSX-ALB  ·
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    Have you ever seen this error before? This is a really important issue in enterprise infrastructure because unauthenticated TLS connections teach our end users to be complacent and ignore this error. TLS Authentication SSL/TLS for internal enterprise administration typically only addresses the confidentiality aspects …


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  • Get an A on ssllabs.com with VMware Avi / NSX ALB (and keep it that way with SemVer!)

    calendar Sep 19, 2021 · 5 min read · Load Balancing TLS Avi NSX-ALB  ·
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    Cryptographic security is an important aspect of hosting any business-critical service. When hosting a public service secured by TLS, it is important to strike a balance between compatibility (The Availability aspect of CIA), and strong cryptography (the Integrity or Authentication and Confidentiality aspects of CIA). …


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  • Static IPv4/IPv6 Addresses - Debian 11

    calendar Sep 17, 2021 · 1 min read · Linux  ·
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    Here's how to set both static IPv4 and IPv6 addressing on Debian 11. The new portions are outlined in italics. First, edit /etc/network/interfaces 1auto lo 2auto ens192 3iface lo inet loopback 4# The primary network interface 5allow-hotplug ens192 6iface ens192 inet static 7 address {{ ipv4.address }} 8 gateway …


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  • VMware NSX ALB (Avi Networks) and NSX-T Integration, Installation

    calendar Sep 10, 2021 · 4 min read · Load Balancing VMWare Avi BGP NSX-T NSX-ALB  ·
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    Note: I created a common baseline for pre-requisites in this previous post. We'll be following VMware's Avi + NSX-T Design guide. This will be a complete re-install. Avi Vantage appears to develop some tight coupling issues with using the same vCenter for both Layer 2 and NSX-T deployments - which is not an issue that …


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  • vCenter - File system /storage/log is low on storage space

    calendar Sep 3, 2021 · 3 min read · VMWare vCenter VCSA  ·
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    After a recent VCSA reboot, I was seeing the infamous no healthy upstream error from vCenter. The first place to check for issues like this is VMware's Virtual Appliance Management Interface (VAMI), located by default via HTTPS on port 5480. An administrator can use the appliance root password for this particular …


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  • VMworld 2021 is right around the corner! Here are my top 10 sessions!

    calendar Aug 25, 2021 · 8 min read · VMWare Network Security Avi NSX-T Network Automation  ·
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    VMworld 2021 is online this year I'll really miss some of the sessions and exploration we've had in past years in person, but I think VMware made the right call this year. We can expect to see a fundamental shift with online conventions - and this will need some unique strategy compared to previous years. The Basics I …


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  • Managing DNS Servers with Ansible and Jenkins (Unbound, BIND)

    calendar Aug 22, 2021 · 9 min read · DNS Jenkins Continuous Delivery Bind9 Programmability Ansible Design Patterns Network Automation Unbound  ·
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    DNS is a vital component of all computer networks. Also known as the "Internet Yellow Pages," this service is consumed by every household. DNS services are typically deployed in several patterns to support users and systems: DNS Forwarder: This deployment method is the most common. Everybody needs name …


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  • NSX Advanced Load Balancer - NSX-T Service Engine Creation Failures: CC_SE_CREATION_FAILURE and Transport Node Not Found to create service engine

    calendar Jul 5, 2021 · 3 min read · VMWare Datacenter Networking Avi NSX-T Design Patterns Network Automation NSX-ALB  ·
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    TL;DR If you see either of these errors, check grep 'ERROR' /opt/avi/log/cc_agent_go_{{ cloud }} for the potential cause. In my case, the / character was not correctly processed by Avi's Golang client (facing vCenter). The Problem When trying to configure NSX ALB + NSX-T on my home lab, I am presented nothing but the …


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  • World WiFi Day 2021!

    calendar Jun 20, 2021 · 3 min read · Wi-Fi  ·
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    World WiFi Day We (human beings) have several weird superpowers, but the ability to communicate over vast distances has always fascinated me the most. I've had the privilege of meeting some of the most truly capable pioneers in this field - but the reality here is that we're faced with a very unequal world. Authors …


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ENGYAK.co

A blog about IT

Disclaimer

The opinions expressed on this site are my own personal opinions and do not represent my employer’s view in any way.

Recent Posts

  • Apollo 13's "Failure is not an option", and how non-engineers misinterpret it
  • Internet Load Balancing with pfSense
  • Handoff to Day-N Automation with vSphere Content Libraries and Netbox
  • Circumventing Coder's block and starting a new project
  • Why wait? Eventual Consistency and Reliability
  • Python Virtual Environment Setup in Jenkins
  • Mellanox nmlx5_core driver 4.23 issues on ESXi 8.0 Update 1
  • API Conversations and Why They're Important

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