engyak.co
open-menu closeme
Home
Archive
Wi-Fi and Radio
Open Source
Python
Information Security
Improving productivity with code
Network Design Patterns
IPv6 / IP Design
github twitter linkedin rss
  • Enable ToFU (Trust on First Use) with OpenSSH

    calendar Feb 11, 2023 · 2 min read · Linux FOSS/Linux Programmability Ansible Information Security  ·
    Share on: twitter facebook linkedin copy

    Ansible is a fantastic tool for Linux-based and NOS-based automation. Have you seen this error before? 1"changed": false, "msg": "Failed to connect to the host via ssh: Host key verification failed." When you use Ansible with SSH transport (as opposed to an API), you rely on the SSH key trust …


    Read More
  • Deploy vSphere VMs with Ansible!

    calendar Feb 4, 2023 · 3 min read · VMWare Home Lab vSphere FOSS/Linux Ansible Network Automation  ·
    Share on: twitter facebook linkedin copy

    In a previous post, we covered how to create a virtual machine from a VM template in vSphere using Python and the REST API as an example of service-agnostic methods to invoke infrastructure resources. VMware's PowerCLI is a fantastic tool, but it's not for me. Tweaking or porting functionality from PowerCLI to other …


    Read More
  • Why Automate? VM Deployment with vSphere's REST API

    calendar Jan 5, 2023 · 7 min read · Linux VMWare Home Lab Python FOSS/Linux Jenkins Continuous Delivery JSON Programmability Jinja  ·
    Share on: twitter facebook linkedin copy

    VMware introduced RESTful APIs with their vSphere 7.0 release train; migrating from the old MOB APIs is a welcome choice. REST clients provide a powerful tool for automating processes, but it's important to embody reliable practices when interacting with infrastructure. The neat thing about published and documented …


    Read More
  • Track Certificate Expiration with Jenkins and Python 3!

    calendar Oct 23, 2022 · 5 min read · Linux Python FOSS/Linux Jenkins Continuous Delivery Design Patterns Information Security  ·
    Share on: twitter facebook linkedin copy

    CI/CD tools aren't just for automatically deploying apps! Jenkins excels at enabling an engineer to automatically execute and test code - but, it has a hidden super-power: Automating boring and intensive IT tasks(removing toil). Let's take a common and relatable IT problem - it doesn't matter if you're a DevOps …


    Read More
  • Using cloud-init with vSphere and openSUSE 15.4

    calendar Sep 23, 2022 · 7 min read · Linux VMWare Home Lab vSphere FOSS/Linux Cloud  ·
    Share on: twitter facebook linkedin copy

    Rapidly deploying Linux servers to meet a whim represents the essence of home lab activities, but we spend a great deal of time spinning/configuring machines to meet our specs. Worse, we lose a great deal of time keeping them properly configured and up to date, and none have the privilege of unlimited lab time. Let's …


    Read More
  • Deploy Root Certificates to Debian-based Linux systems with Ansible

    calendar Mar 19, 2022 · 3 min read · Linux FOSS/Linux Ansible Information Security  ·
    Share on: twitter facebook linkedin copy

    There are numerous advantages to deploying an internal root CA to an enterprise: Autonomy: Enterprises can control how their certificates are issued, structured, and revoked independently of a third party. Slow or fast replacement cycles are permissible if you control the infrastructure, letting you customize the CA to …


    Read More
  • Leveraging Hyperglass and NSX-T!

    calendar May 9, 2021 · 3 min read · eBGP Datacenter Networking FOSS/Linux BGP Design Patterns Network Automation  ·
    Share on: twitter facebook linkedin copy

    For this example deployment, I'll be using my NSX-T Lab as the fabric, VyOS for the Overloaded Router role, and trying out hyperglass: Installation (VyOS) I already have a base image for VyOS with its management VRF set up - and updating the base image prior to deployment is a breeze due to the vSphere 7 VM Template …


    Read More
  • Design Pattern: Looking Glasses

    calendar Mar 22, 2021 · 3 min read · eBGP Python FOSS/Linux Network Automation Home Lab IPv6 Datacenter Networking iBGP Routing & Switching Studies BGP Programmability Design Patterns  ·
    Share on: twitter facebook linkedin copy

    It's probably safe to say that service provider networking is pretty unique. One particular design pattern - Looking Glasses - is extremely useful for complex dynamically routed networks. I'd really like to shift the gatekeeping needle here - networks that are complex enough to benefit from a looking glass should move …


    Read More
  • 9/10 NGINX Use Cases, URI and Host rewrites

    calendar Jan 17, 2021 · 3 min read · NGINX FOSS/Linux Programmability Design Patterns  ·
    Share on: twitter facebook linkedin copy

    NGINX Rewrite Directives, The 9/10 Solutions When doing ADC/Load Balancer work, nearly all requests fit into two categories: Please rewrite part of the URL/URI Please change the host header for this reverse proxy These are fairly simple to implement in NGINX, so I'm creating a couple of cheat-sheet code snippets here. …


    Read More
  • Why Automate? Using Pipelines to Develop and Manage Network Configurations

    calendar Dec 31, 2020 · 10 min read · eBGP Home Lab IPv6 Datacenter Networking FOSS/Linux Spine and Leaf Routing & Switching Studies BGP Ansible Jinja Network Automation  ·
    Share on: twitter facebook linkedin copy

    Continuous Delivery: No Rest for the Wicked Now that we have: A method to generate Desired State Configurations, by defining Declaratively what the device config should be, and combining it with what a device config should have A method to apply configurations automatically, without PuTTY Copy-Pasting We now can …


    Read More
    • ««
    • «
    • 1
    • 2
    • »
    • »»

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

  • Automate Cisco IOS/IOS-XE documentation with Ansible (with examples)
  • Document Networks as Code with D2!
  • Document vSphere as Code with D2!
  • Diagram as Code with D2!
  • Enable ToFU (Trust on First Use) with OpenSSH
  • Deploy vSphere VMs with Ansible!
  • Why Automate? VM Deployment with vSphere's REST API
  • What happens to packets with a VMware vSphere Distributed Switch?

Series

SPINE-AND-LEAF-FABRICS 8 WHY-AUTOMATE 8 D2 4

Tags

DATACENTER-NETWORKING 43 VMWARE 43 ROUTING-SWITCHING-STUDIES 35 NSX-T 32 HOME-LAB 31 BGP 28 NETWORK-AUTOMATION 23 PROGRAMMABILITY 22 DESIGN-PATTERNS 20 EBGP 20 IPV6 15 NETWORK-SECURITY 15 AVI 13 ANSIBLE 12 FOSS/LINUX 12 NSX-ALB 11 IBGP 10 LINUX 10
All Tags
802.3BY1 ANSIBLE12 ANYCAST3 AVI13 BGP28 BIND91 CISCO-NX-OS3 CLOUD1 CONTINUOUS-DELIVERY5 DATACENTER-NETWORKING43 DESIGN-PATTERNS20 DIAGRAMS4 DNS1 EBGP20 FOSS/LINUX12 GITOPS1 HOME-LAB31 IBGP10 INFORMATION-SECURITY5 IPV615 IS-IS3 JENKINS4 JINJA4 JSON4 LAYER-12 LAYER-22 LINUX10 LOAD-BALANCING9 NETWORK-AUTOMATION23 NETWORK-SECURITY15 NFV3 NGINX1 NSX1 NSX-ALB11 NSX-T32 NSX-V2 OSPF5 PAN-OS3 PROGRAMMABILITY22 PYTHON8 RIPV22 ROUTING-SWITCHING-STUDIES35 SPANNING-TREE1 SPINE-AND-LEAF10 TLS3 UNBOUND1 UNEARNED-UPTIME2 VCENTER1 VCSA1 VMWARE43 VSPHERE4 WI-FI4 WPA32 XML1 YAML1
[A~Z][0~9]
engyak.co

Copyright 2019-  ENGYAK.CO. All Rights Reserved

to-top