Skip to content

Instantly share code, notes, and snippets.

View aperture147's full-sized avatar

Vũ Quang Hải aperture147

View GitHub Profile
@maprangzth
maprangzth / sysctl.conf
Created October 12, 2018 04:48 — forked from yegorg/sysctl.conf
ubuntu sysctl performance tuning
# Kernel sysctl configuration file for Linux
#
# Version 1.12 - 2015-09-30
# Michiel Klaver - IT Professional
# http://klaver.it/linux/ for the latest version - http://klaver.it/bsd/ for a BSD variant
#
# This file should be saved as /etc/sysctl.conf and can be activated using the command:
# sysctl -e -p /etc/sysctl.conf
#
# For binary values, 0 is disabled, 1 is enabled. See sysctl(8) and sysctl.conf(5) for more details.
@webframp
webframp / keybase.md
Created July 25, 2017 18:14
Signing git commits on github using keybase.io gpg key

Probably one of the easiest things you'll ever do with gpg

Install Keybase: https://keybase.io/download and Ensure the keybase cli is in your PATH

First get the public key

keybase pgp export | gpg --import

Next get the private key

@chrisveness
chrisveness / crypto-pbkdf2.js
Last active December 21, 2023 19:20
Uses the SubtleCrypto interface of the Web Cryptography API to hash a password using PBKDF2, and validate a stored password hash against a subsequently supplied password. Note that both bcrypt and scrypt offer better defence against ASIC/GPU attacks, but are not available within WebCrypto.
/**
* Returns PBKDF2 derived key from supplied password.
*
* Stored key can subsequently be used to verify that a password matches the original password used
* to derive the key, using pbkdf2Verify().
*
* @param {String} password - Password to be hashed using key derivation function.
* @param {Number} [iterations=1e6] - Number of iterations of HMAC function to apply.
* @returns {String} Derived key as base64 string.
*
@lolzballs
lolzballs / HelloWorld.java
Created March 22, 2015 00:21
Hello World Enterprise Edition
import java.io.FileDescriptor;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
public class HelloWorld{
private static HelloWorld instance;
public static void main(String[] args){
instantiateHelloWorldMainClassAndRun();