Posts 96
2023
7 Posts
- March — Automate Cisco IOS/IOS-XE documentation with Ansible (with examples)
- March — Document Networks as Code with D2!
- March — Document vSphere as Code with D2!
- March — Diagram as Code with D2!
- February — Enable ToFU (Trust on First Use) with OpenSSH
- February — Deploy vSphere VMs with Ansible!
- January — Why Automate? VM Deployment with vSphere's REST API
2022
21 Posts
- December — What happens to packets with a VMware vSphere Distributed Switch?
- December — Security patches are available for VMware vCenter 8.0 - Let's try the new vCenter Lifecycle Manager!
- December — Why Automate? Programmability is about solving new problems without fear of failure.
- November — Tweak Application behaviors with NSX ALB
- October — Track Certificate Expiration with Jenkins and Python 3!
- October — Gathering and Using Data from Cisco NX-OS with Ansible Modules
- September — Using cloud-init with vSphere and openSUSE 15.4
- August — Identity theft has gotten out of hand. Here are basic ways to protect yourself.
- August — NSX Data Center 4.0.0.1 is now available!
- July — The Role of Trust and Failure in Information Security
- May — Scale datacenters past the number of VLAN IDs with NSX-T Tier-0 and Q-in-X
- May — Different Methods to carry 802.1q tags with VMware vDS and NSX-T
- April — Network Experiments with VMware NSX-T and Cisco Modeling Labs
- April — Vendor interoperability with multiple STP instances
- March — Cisco Modeling Labs
- March — Deploy Root Certificates to Debian-based Linux systems with Ansible
- March — Cloud-Scale Networking: NSX Datacenter Hierarchical Tier-0s, blending telecom with cloud
- March — VMware NSX-T and Ansible
- January — Bogons, and how to leverage public IP feeds with NSX-T
- January — GitOps with NSX Advanced Load Balancer and Jenkins
- January — Leverage Idempotent, Declarative Profiles with the NSX-ALB (Avi) REST API
2021
26 Posts
- December — The winds of change in cloud operations, and why integrations like NSX Data Center 3.2 + Advanced Load Balancer are important
- December — NSX-T 3.2 and NSX ALB (Avi) Deployment Error - "Controller is not reachable. {0}"
- December — VyOS and other Linux builds unable to use `vmxnet3` or "VMware Paravirtual SCSI" adapter on vSphere
- November — Why Automate? Reliability Approaches with the VMware NSX-T API
- October — Get rid of certificate errors with Avi (NSX-ALB) and Hashicorp Vault!
- September — Get an A on ssllabs.com with VMware Avi / NSX ALB (and keep it that way with SemVer!)
- September — Static IPv4/IPv6 Addresses - Debian 11
- September — VMware NSX ALB (Avi Networks) and NSX-T Integration, Installation
- September — vCenter - File system `/storage/log` is low on storage space
- August — VMworld 2021 is right around the corner! Here are my top 10 sessions!
- August — Managing DNS Servers with Ansible and Jenkins (Unbound, BIND)
- July — NSX Advanced Load Balancer - NSX-T Service Engine Creation Failures: `CC_SE_CREATION_FAILURE` and `Transport Node Not Found to create service engine`
- June — World WiFi Day 2021!
- June — XML, JSON, YAML - Python data structures and visualization for infrastructure engineers
- May — Troubleshooting with VMware NSX ALB/Avi Vantage
- May — VMware NSX Advanced Load Balancer - Installation
- May — Leveraging Hyperglass and NSX-T!
- May — PSA: PAN-OS Drops BGP peers with an invalid NLRI / Always filter inbound prefixes from Avi Vantage
- May — NSX-T Edge Transport Node Packet Captures
- April — PAN-OS IPv6 Error: bgp peer local address 0:0:0:0:0:0:0:0 does not belong to interface
- April — VMware NSX Advanced Load Balancer - Overview
- March — Design Pattern: Looking Glasses
- March — Unearned Uptime - Present and Future Design Patterns
- March — Unearned Uptime: Letting Old Ideas Go
- January — 9/10 NGINX Use Cases, URI and Host rewrites
- January — NSX-T Transitive Networking
2020
11 Posts
- December — Why Automate? Using Pipelines to Develop and Manage Network Configurations
- December — Why Automate? Ansible Playbooks and Desired State for Network Operating Systems
- December — Advantages for BGP in Virtualized Topologies
- December — vCenter Upgrade Error: `Exception Occurred in install precheck phase`
- October — Using VM Templates and NSX-T for Repeatable Virtual Network Deployments
- August — Why Automate? Writing a self-testing Python class for REST or XML API invocation
- May — Why Automate, Part 2: RESTFul APIs and why they aren't as hard as you think
- March — IPv6 Sage Certification with NSX-T, Part 2
- March — IPv6 Up and Running - Dual-Stack connectivity with NSX-T
- February — IPv6 Sage Certification with NSX-T, Part 1: Requesting an extended prefix
- February — Why Automate, Part 1: Network Config Templating in Jinja2
2019
28 Posts
- December — Securing Dual-Stack (IPv4,IPv6) Endpoints with NSX-T
- November — IPv6 Up and Running - Address Planning Basics and using a Tunnel Broker
- October — Anycast Stateless Services with NSX-T, Implementation
- October — Anycast Stateless Services with NSX-T, the Theory
- October — BGP Graceful Restart, some inter-platform oddities, what to do with it
- October — NSX-T 2.5 Getting Started, Part 2 - Service Configuration!
- September — NSX-T 2.5 Getting Started, Part 1
- September — Spine and Leaf Networks, an Outline
- September — NSX-T Datacenter 2.5 Upgrade Process and Preview
- September — NSX-T Datacenter 2.5 Released!
- June — Spine and Leaf Practical Applications, The IP Portability Problem
- June — Spine and Leaf Practical Applications, EGP and IGP combined!
- June — Spine and Leaf Practical Applications, eBGP
- June — Switching Lab Topology Diagram
- June — Spine and Leaf Practical Applications, OSPF
- June — Spine and Leaf Practical Applications, RIPv2
- May — Spine and Leaf Networks, a Topology
- April — Spine and Leaf Networks, an Introduction
- April — Traditional Datacenter Network, a Preamble to Spine-and-Leaf
- March — Forward Error Correction, a story about Generation 14 PowerEdge and 25 Gigabit connectivity
- March — Gotchas with NSX-T 2.4
- March — Running a serial console server over ESXi
- March — Minemeld installation, continued
- February — Minemeld installation, Part 1
- February — My Home Lab!
- February — RFC 7710
- February — WPA and Open System Authentication
- February — Aruba's early implementation of WPA3, mixed mode