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@aunyks
aunyks / snakecoin-server-full-code.py
Last active May 19, 2025 01:22
The code in this gist isn't as succinct as I'd like it to be. Please bare with me and ask plenty of questions that you may have about it.
from flask import Flask
from flask import request
import json
import requests
import hashlib as hasher
import datetime as date
node = Flask(__name__)
# Define what a Snakecoin block is
class Block:
import hashlib as hasher
import datetime as date
# Define what a Snakecoin block is
class Block:
def __init__(self, index, timestamp, data, previous_hash):
self.index = index
self.timestamp = timestamp
self.data = data
self.previous_hash = previous_hash
@actuino
actuino / HowToOTG.md
Created February 10, 2017 09:23 — forked from gbaman/HowToOTG.md
Simple guide for setting up OTG modes on the Raspberry Pi Zero

Raspberry Pi Zero OTG Mode

Simple guide for setting up OTG modes on the Raspberry Pi Zero - By Andrew Mulholland (gbaman).

The Raspberry Pi Zero (and model A and A+) support USB On The Go, given the processor is connected directly to the USB port, unlike on the B, B+ or Pi 2 B, which goes via a USB hub.
Because of this, if setup to, the Pi can act as a USB slave instead, providing virtual serial (a terminal), virtual ethernet, virtual mass storage device (pendrive) or even other virtual devices like HID, MIDI, or act as a virtual webcam!
It is important to note that, although the model A and A+ can support being a USB slave, they are missing the ID pin (is tied to ground internally) so are unable to dynamically switch between USB master/slave mode. As such, they default to USB master mode. There is no easy way to change this right now.
It is also important to note, that a USB to UART serial adapter is not needed for any of these guides, as may be documented elsewhere across the int

@titpetric
titpetric / purge-multi.lua
Created January 8, 2017 18:34
Delete NGINX cached items with a PURGE with wildcard support
-- Tit Petric, Monotek d.o.o., Tue 03 Jan 2017 06:54:56 PM CET
--
-- Delete nginx cached assets with a PURGE request against an endpoint
-- supports extended regular expression PURGE requests (/upload/.*)
--
function file_exists(name)
local f = io.open(name, "r")
if f~=nil then io.close(f) return true else return false end
end
@gene1wood
gene1wood / role_arn_to_session.py
Created December 29, 2016 17:38
Simple python function to assume an AWS IAM Role from a role ARN and return a boto3 session object
import boto3
def role_arn_to_session(**args):
"""
Usage :
session = role_arn_to_session(
RoleArn='arn:aws:iam::012345678901:role/example-role',
RoleSessionName='ExampleSessionName')
client = session.client('sqs')
"""
@jerel
jerel / seed.ex
Created December 19, 2016 15:48
Run seeds in an Elixir Distillery app
defmodule :release_tasks do
def seed do
:ok = Application.load(:myapp)
[:postgrex, :ecto, :logger]
|> Enum.each(&Application.ensure_all_started/1)
Myapp.Repo.start_link
@ilude
ilude / KVM Attempt 1
Last active June 12, 2023 18:58
KVM virt-install command
qemu-img create -f qcow2 /pool/vms/xp.qcow2 50G
sudo virt-install --connect qemu:///system -n xp -r 512 --disk path=/pool/vms/xp.qcow2,size=50 \
-c /pool/iso/windows/en_windows_xp_professional_with_service_pack_3_x86_cd_vl_x14-73974.iso \
--graphics vnc,listen=0.0.0.0,port=65322 --noautoconsole \
--os-type windows --os-variant winxp
@nextrevision
nextrevision / deleteJenkinsJobs.groovy
Created December 3, 2015 17:30
Groovy script to delete all jenkins jobs that match a regex pattern
import jenkins.model.*
def matchedJobs = Jenkins.instance.items.findAll { job ->
job.name =~ /my_regex_here/
}
matchedJobs.each { job ->
println job.name
//job.delete()
}
@bhameyie
bhameyie / haproxy.cfg
Last active December 17, 2024 12:48
Sample haproxy config
##based on Mesosphere Marathon's servicerouter.py haproxy config
global
daemon
log 127.0.0.1 local0
log 127.0.0.1 local1 notice
maxconn 4096
tune.ssl.default-dh-param 2048
defaults
@sh4t
sh4t / flush_chrome_dns.sh
Last active July 20, 2024 18:58
clearing chrome dns cache and sockets via js
#!/bin/bash
#
# The MIT License (MIT)
# Copyright (c) 2015 Justin Shattuck <[email protected]>, F5 Networks, Inc.
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell