Skip to content

Instantly share code, notes, and snippets.

@crsuarez
crsuarez / gist:5a066638a805e46b448acebd4f5fe8d1
Last active January 14, 2021 05:40 — forked from wacko/gist:5577187
SSH between Mac OS X host and Virtual Box guest

On Mac OS (host):

Shutdown your VM and do:
On a terminal:

VBoxManage hostonlyif create
VBoxManage hostonlyif ipconfig vboxnet0 --ip 192.168.56.1
VBoxManage dhcpserver add --ifname vboxnet0 --ip 192.168.56.1 --netmask 255.255.255.0 --lowerip 192.168.56.100 --upperip 192.168.56.200
VBoxManage dhcpserver modify --ifname vboxnet0 --enable
@vlucas
vlucas / encryption.ts
Last active May 8, 2025 12:51
Stronger Encryption and Decryption in Node.js
import { createCipheriv, createDecipheriv, randomBytes } from "crypto";
const ENCRYPTION_KEY: string = process.env.ENCRYPTION_KEY || ""; // Must be 256 bits (32 characters)
const IV_LENGTH: number = 16; // For AES, this is always 16
/**
* Will generate valid encryption keys for use
* Not used in the code below, but generate one and store it in ENV for your own purposes
*/
export function keyGen() {
@wesbos
wesbos / async-await.js
Created February 22, 2017 14:02
Simple Async/Await Example
// 🔥 Node 7.6 has async/await! Here is a quick run down on how async/await works
const axios = require('axios'); // promised based requests - like fetch()
function getCoffee() {
return new Promise(resolve => {
setTimeout(() => resolve('☕'), 2000); // it takes 2 seconds to make coffee
});
}
@chourobin
chourobin / 0-bridging-react-native-cheatsheet.md
Last active April 22, 2025 14:27
React Native Bridging Cheatsheet
@asm-jaime
asm-jaime / go-gin-mgo.go
Last active February 20, 2021 21:13
go gin mgo, gin+mongo+test example
package main
import (
"encoding/base64"
"fmt"
rand "math/rand"
"time"
"github.com/gin-gonic/gin"
@ravikiranj
ravikiranj / postman-hmac-sha512-preq-request.js
Created April 27, 2017 18:05
HMAC SHA512 Authentication Pre-request script for Postman
/* Pre-requisite
==================
1) Create an Environment (if you don't already have on) and enable it for your request
2) Add a new Header with key as "Authorization" and value as "{{hmacAuthHeader}}"
3) Add the following Pre-request Script that computes the hmacAuthHeader variable and adds it to the environment
4) Fill your CLIENT_KEY and SECRET_KEY with valid values
*/
function getPath(url) {
var pathRegex = /.+?\:\/\/.+?(\/.+?)(?:#|\?|$)/;
@coco98
coco98 / kube-registry.yaml
Created May 2, 2017 16:31
Docker registry on minikube
apiVersion: v1
kind: ReplicationController
metadata:
name: kube-registry-v0
namespace: kube-system
labels:
k8s-app: kube-registry
version: v0
spec:
replicas: 1
@lelandrichardson
lelandrichardson / react-native.js
Last active July 21, 2022 17:56
React Native flow types
declare var __DEV__: boolean;
declare module 'react-native' {
declare type Color = string | number;
declare type Transform =
{ perspective: number } |
{ scale: number } |
{ scaleX: number } |
@prakashpandey
prakashpandey / CustomResponseWriter.go
Last active November 30, 2024 05:36
Implement custom http.ResponseWriter in golang
package main
import (
"fmt"
"net/http"
)
type CustomResponseWriter struct {
body []byte
statusCode int
@var23rav
var23rav / MoveFile.go
Last active November 22, 2024 02:38
GoLang: os.Rename() give error "invalid cross-device link" for Docker container with Volumes. MoveFile(source, destination) will work moving file between folders
import (
"fmt"
"io"
"os"
)
/*
GoLang: os.Rename() give error "invalid cross-device link" for Docker container with Volumes.
MoveFile(source, destination) will work moving file between folders
*/