jeffgreenca’s gists

jeffgreenca / gist:365bc4589062fe50b71acf82d6c2f512

Created December 14, 2017 15:01

	### Keybase proof

	I hereby claim:

	* I am jeffgreenca on github.
	* I am jeffgreenca (https://keybase.io/jeffgreenca) on keybase.
	* I have a public key ASB53mfLk0H_ZlubFd9z_6Y0y8eb4GeT6s40DsGoeR6iIAo

	To claim this, I am signing this object:

jeffgreenca / gist:a5e640d255fceedbebe3ee86a07dd49d

Created December 13, 2017 23:22

Verifying my Blockstack ID is secured with the address 13SqyE7wADfDf1veyn1nYFhXqzB1mSXzqg https://explorer.blockstack.org/address/13SqyE7wADfDf1veyn1nYFhXqzB1mSXzqg

jeffgreenca / capture-vm-traffic.sh

Last active October 31, 2022 03:03

Capture traffic for a particular VM on an ESXi host, using pktcap-uw. Assists with finding the PORT-ID and most common interesting capture points.

	#!/bin/sh
	#Manage packet capture of a particular VM running on this ESXi host
	#How to use, on an ESXi host:
	# Download the script to /tmp and make it executable.
	# $ chmod +x capture-vm-traffic.sh
	# $ ./capture-vm-traffic.sh start your-vm-name
	# Do stuff you want captured, then
	# $ ./capture-vm-traffic.sh stop
	# You get three files containing the in, out, and drops for the VM's vnic
	#Tested on ESXi 6.5.0 build 5224529

jeffgreenca / template-config-win2016.txt

Created December 5, 2017 16:51

windows 2016 config steps for template

	#Basic checklist for Windows 2016 Server template with GUI

	Build new VM shell Template-Windows-Server-2016-DataCtr-GUI
	2 vCPU / dual socket, 4GB RAM, 60GB HDD, removed floppy drive, VMXNET3
	Installed Windows Server 2016 Datacenter GUI
	Administrator / <default password>
	Activated Windows Server 2016 Datacenter 2016 MAK JNVR2-7TVH7-8TT94-CCKBW-DGQDH
	Installed VMware tools
	Leave firewall on (will turn off via GPO)
	Created C:\Utilities folder

jeffgreenca / template-config-centos.txt

Created December 5, 2017 16:49

hacked together centos template configuration script for VM provisioning

	#References
	https://lonesysadmin.net/2013/03/26/preparing-linux-template-vms/
	https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Virtualization_Deployment_and_Administration_Guide/sect-Guest_virtual_machine_disk_access_with_offline_tools-Using_virt_sysprep.html
	http://everything-virtual.com/2016/05/06/creating-a-centos-7-2-vmware-gold-template/

	#Installed using latest CentOS 7 minimal media (June 6th)
	#Enabled SELinux to the second option (default policies, minimum basically)
	yum update -y

	#Install these packages:

jeffgreenca / train.ino

Created December 4, 2017 01:21

Arduino code driving a custom LEGO train integration

	/*
	Train.ino
	Jeff Green, December 2017
	Software control for LEGO PowerFunction Train

	Uses motion sensor HC-SR501, OLED display, and custom
	adapter circuit for LEGO PowerFunction control on pin 3.

	See loop() for the program info

jeffgreenca / arduino-garage-parking-assist.ino

Created September 3, 2017 23:19

Arduino Garage Parking Assistant

	/*

	Arduino Garage Parking Assistant
	By Jeff Green
	Sept 3rd, 2017

	Simple parking assist using HC-SR04 for distance measurement
	and MAX7219 8x8 LED grid for visual feedback.

	Place at the front of your garage, and it will help you park

jeffgreenca / visual-timer.ps1

Created August 15, 2017 22:18

while ($true) { start-sleep 0.1; Get-Date -Format "mm:ss:ffff" }

jeffgreenca / main.yml

Last active August 13, 2017 15:53

Trivial Ansible example

	---
	- hosts: localhost
	roles:
	- { role: geerlingguy.nginx }
	vars:
	nginx_vhosts:
	- listen: "80"
	server_name: "*"
	return: "301 https://www.jeffgreen.io/"

jeffgreenca / split-brain-dns.py

Created August 8, 2017 18:55

	# Split Brain DNS Stupidly Simple
	# Edit the script and run it, point your DNS client to 127.0.0.1 or whatever

	from twisted.internet import reactor, defer
	from twisted.names import client, dns, error, server

	class DynamicResolver(object):

	#List of custom domain names and their associated DNS server
	_custom = [ ('yourdomain.local', '1.2.3.4'),

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