Chase Wright's Blog - Networking, Politics, and Crypto

Getting Started with Nethermind on Windows

Published by MysticRyuujin on December 16, 2019

Nethermind is an Ethereum Client built on .NET Core. It is extremely fast and efficient.

Download Nethermind from the official page
- For this tutorial I’m going to use D:\Nethermind\
- I’m going to extract the latest version (1.3.2 as of writing) to D:\Nethermind\1.3.2\ in order to have a ‘fresh’ copy.
- I’m then going to copy the contents to D:\Nethermind\Current\ as this will be my ‘working directory’.
Create a folder for your custom config files
- I’m going to use D:\Nethermind\MyConfig\
Create folders for your data (Database, Log, Keystore)
- I’m going to use D:\Nethermind\MyData\
Populate your Config Folder with optional Static-Nodes
- If you have other nodes on your network or wish to statically assign peers you can create or copy “static-nodes.json” from the D:\Nethermind\Current\Data folder. Then simply add your enodes.
Generate your configuration file
- The default config file is “mainnet.cfg” located in D:\Nethermind\Current\configs\ copy this file to your MyConfig folder
- You will want to modify a few options at the very least, below is my config.

VXLAN EVPN Multisite Setup – Part 4

Published by jmillermo on December 14, 2018

Quick Recap
Part 1 – Setup simple L2 VXLAN within a single site
Part 2 – Setup L3 VNI within a single site
Part 3 – Setup multisite between 2 sites using a route server
Part 4, we will be configuring external connectivity via the shared border which is on 9K-10 below

VXLAN EVPN Multisite Setup – Part 3

Published by jmillermo on December 14, 2018

In part 3, I’ll be setting up the multisite between site 1 and 2 (Site 2 has been pre-configured) using a route server (9K-9) seen in the diagram below.

VXLAN EVPN Multisite Setup – Part 2

Published by jmillermo on December 14, 2018

For part 2, I will be setting up a L3 VNI to allow PC2 (Vlan 100) to communicate with PC3 (Vlan 200) within site 1. Using the same diagram as part 1 below:

VXLAN EVPN Multisite Setup – Part 1

Published by jmillermo on December 14, 2018

Below is the diagram I’ll be working with. For this part, I’ll be setting up site 1 with a simple L2 vxlan allowing PC2 and 3 to communicate.

Firepower 6.2.3 Integration with ISE 2.3

Published by jmillermo on June 29, 2018

Disclaimer: This is by no means a complete guide to this setup, but serves only to remind myself of the steps needed for my purposes. If this helps you, great.

Tautulli on Ubuntu 16.04 LTS

Published by MysticRyuujin on March 25, 2018

Here’s a no-nonsese install guide for installing ~~PlexPy~~ Tautulli on Ubuntu 16.04 LTS. I’m assuming you’re root (sudo up!)

SSH Tunneling host to host

Published by jmillermo on September 11, 2017

First I will bring up a couple simple ubuntu docker containers. I have already setup vlans 10 and 20 in my network within docker using macvlan, so here i’m just assigning them specific IP addresses to use. You’ll also have to use privileged mode on these or else you won’t be able to bring up the tunnels. You will not need to worry about this unless you are using docker containers like I am.

Docker Networking

Published by jmillermo on September 8, 2017

BRIDGE

The bridge network driver will allow containers using the bridge to communicate with each other and provide external connectivity using NAT. Below i create a local bridge, and then run 2 new containers using that bridge

Creating an ACL template using Ansible

Published by jmillermo on September 7, 2017

My goal here was to make updating an ACL that is applied on multiple devices as easy as possible. Below is a portion of my vars.yml file just to give an idea of how updates are done:

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