Copyright © 2016-2018 Fantasyland Institute of Learning. All rights reserved.
A function is a mapping from one set, called a domain, to another set, called the codomain. A function associates every element in the domain with exactly one element in the codomain. In Scala, both domain and codomain are types.
val square : Int => Int = x => x * x
| #This script was written by REXOVAS to automate 90% of a ZEN Secure Node setup process for an IPv4 node. | |
| #Parts of this script were adapted from a script by github user rnkhouse | |
| #rnkhouse script found here: https://gist.github.com/rnkhouse/f7f04f0cb10b596e2c6623275968a220 | |
| #Prior to running this script, please ensure that you are not signed in as root, and have completed all steps up until the copying | |
| #of authentication key pairs in this guide: https://blockoperations.com/build-zencash-secure-node-part-1-prepare-vps/ | |
| #This script performs all actions described in the 3 guides found on blockoperations.com. It compiles zend from source. | |
| #This script installs both Monit and PM2 and automatically configures monit to monitor zend. | |
| #WARNING: This script is intended for use by advanced Linux users. Please read through this script thoroughly to ensure that |
| #/bin/bash | |
| #Ask some info | |
| echo -n "Enter ELK Server IP or FQDN: " | |
| read eip | |
| echo -n "Enter Admin Web Password: " | |
| read adpwd | |
| #Update System | |
| sudo apt-get update | |
| sudo apt-get upgrade -y |
Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...
// see: https://github.com/chadoe/docker-cleanup-volumes
docker volume rm $(docker volume ls -qf dangling=true)
docker volume ls -qf dangling=true | xargs -r docker volume rm
| #!/bin/bash | |
| rep=$(curl -s --unix-socket /var/run/docker.sock http://ping > /dev/null) | |
| status=$? | |
| if [ "$status" == "7" ]; then | |
| echo 'not connected' | |
| exit 1 | |
| fi |
| #!/usr/bin/env bash | |
| # IMPORTANT: Run this script from /home/<USER>/ directory: bash -c "$(curl SCRIPT_URL)" | |
| # (optional): Preparing the environment if you want to install zen from source: | |
| # Once you get the VM up and running you need to login with your root account and run below commands. | |
| # apt-get update && apt-get upgrade -y | |
| # apt-get install -y build-essential pkg-config libc6-dev m4 g++-multilib autoconf libtool ncurses-dev unzip git python zlib1g-dev wget bsdmainutils automake libgtk2.0-dev && apt-get autoremove -y |
| set serveroutput on; | |
| declare | |
| raw_guid raw(16); | |
| guid varchar2(64); | |
| begin | |
| raw_guid := guid_to_raw ('88c6a267-65d2-48d6-8da2-6f45e2c22726'); | |
| guid := raw_to_guid('67A2C688D265D6488DA26F45E2C22726'); | |
| # content has to be in .config/fish/config.fish | |
| # if it does not exist, create the file | |
| setenv SSH_ENV $HOME/.ssh/environment | |
| function start_agent | |
| echo "Initializing new SSH agent ..." | |
| ssh-agent -c | sed 's/^echo/#echo/' > $SSH_ENV | |
| echo "succeeded" | |
| chmod 600 $SSH_ENV | |
| . $SSH_ENV > /dev/null |
This is a quick-and-dirty guide to setting up a Raspberry Pi as a "router on a stick" to PrivateInternetAccess VPN.
Install Raspbian Jessie (2016-05-27-raspbian-jessie.img) to your Pi's sdcard.
Use the Raspberry Pi Configuration tool or sudo raspi-config to:
| wget https://git.io/vpnsetup -O vpnsetup.sh && sudo \ | |
| VPN_IPSEC_PSK='your_ipsec_pre_shared_key' \ | |
| VPN_USER='your_vpn_username' \ | |
| VPN_PASSWORD='your_vpn_password' sh vpnsetup.sh |