Znuff

How to convert private key to WIF

0. Overview

WIF = base58check encode ([version byte][private key][checksum])

version byte = 80 for mainnet, ef for testnet and regtest

checksum = first 4 bytes of double SHA256 of private key

Znuff

#!/bin/bash

explorer_height=$(curl -s https://explorer.gravium.io/api/getblockcount)
latest_hash=$(curl -s https://explorer.gravium.io/api/getblockhash?index=$explorer_height)
block_to_check=$((explorer_height - 3))
explorer_hash=$(curl -s https://explorer.gravium.io/api/getblockhash?index=$block_to_check)

# environment setup, make it pretty
tred=$(tput setaf 1); tgreen=$(tput setaf 2); tyellow=$(tput setaf 3); tblue=$(tput setaf 4); tmagenta=$(tput setaf 5); tcyan=$(tput setaf 6); treset=$(tput sgr0); tclear=$(tput clear); twbg=$(tput setab 7)

Znuff

This is a simple action for fail2ban that uses Cloudflare's API for Rules & Filters to block IP Addresses.

Usage is simple:

• Add an IP address to the rule/filter:

  ./fail2cloudflare.py add <ip>
  

• Delete an IP address from the rule/filter:

Znuff

Cloudflare doesn't allow disabling IPv6 via their Dashboard any more. This works:

curl -X PATCH "https://api.cloudflare.com/client/v4/zones/<zone-id>/settings/ipv6" \
  -H "X-Auth-Email: <email>" \
  -H "X-Auth-Key: <auth-key>" \
  -H "Content-Type: application/json" \

--data '{"value":"off"}'

Znuff

Simple Python script to set all downloaded movies to unmonitored after X days (default 30).

Edit the APIKEY, URL and DAYS to your liking. Run on a daily/weekly basis.

Znuff

#!/bin/bash
# simple one-liner to update the cloudflare IPs for `set_real_ip_from`

{ curl -s https://www.cloudflare.com/ips-v4; echo; curl -s https://www.cloudflare.com/ips-v6; } | sed '/^$/d' | sed 's/^/set_real_ip_from /' | sed 's/$/;/'