GB Kim code-machina

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Security Engineer ELK Stack, Kafka, C# (WPF/ Prism6/MVVM), Python(Django/Restframework), Web/Mobile Hacking, Reverse Engineering

code-machina / Student.java

Created April 5, 2019 07:01

Model for Spring DAL

	package com.gbkim.student.dal.entities;

	import javax.persistence.Column;
	import javax.persistence.Entity;
	import javax.persistence.GeneratedValue;
	import javax.persistence.GenerationType;
	import javax.persistence.Id;
	import javax.persistence.Table;

	@Entity

code-machina / studentdal.sql

Created April 5, 2019 06:58

Mysql Sql Example for Student DAL(Data Access Layer)

	create database projectdb

	use projectdb

	create table studenttab(
	id int PRIMARY KEY AUTO_INCREMENT,
	sname varchar(20),
	scourse varchar(30),
	sfee int
	)

code-machina / StudentdalApplicationTests.java

Last active October 31, 2020 06:03

Student Model Sample

	package com.gbkim.student.dal;

	import java.util.Optional;

	import org.junit.Test;
	import org.junit.runner.RunWith;
	import org.springframework.beans.factory.annotation.Autowired;
	import org.springframework.boot.test.context.SpringBootTest;
	import org.springframework.test.context.junit4.SpringRunner;

code-machina / AWS_CLI.command

Last active March 23, 2019 06:41

AWS CLI command

	# AWS 인스턴스를 실행
	aws ec2 run-instances --instance-type [인스턴스 타입을 입력, t2.micro] --image-id [AMI 아이디를 입력, 인스턴스 정보] --count [생성할 인스턴스 수를 입력, 숫자]

	# Topic : Create Custom AMI

	## 권한 상승
	sudo su
	## 업데이트
	yum update -y
	## 아파치 웹서버 설치

code-machina / helloworld.sol

Last active December 17, 2018 02:37

Examples of solidity ^0.5.1

	pragma solidity ^0.5.1; // (1) Version pragma

	contract Helloworld {
	// 문자열 멤버 변수
	string public greeting;

	// memory 키워드가 반드시 있어야 한다.
	// greeting 멤버 변수를 초기화
	function setGreeting(string memory _greeting) public {
	greeting = _greeting;

code-machina / curl_check_eth_mining.sh

Created December 16, 2018 23:34

Ethereum JSON-RPC 명령어 모음 (geth, ethereum, json-rpc)

	# ethereum 마이닝이 진행 중인지 확인한다.

	curl -X POST -H "Content-Type: application/json" --data '{"jsonrpc":"2.0", "method":"eth_mining","params":[], "id":10}' ${RPC_HOST}:8545
	# output: {"jsonrpc":"2.0","id":10,"result":true}

code-machina / ISP.cs

Created December 15, 2018 01:05

Interface Segregation Principle (ISP) PoC

	using System;

	namespace DotNetDesignPatternDemos.SOLID.InterfaceSegregationPrinciple
	{
	public class Document
	{
	}

	public interface IMachine
	{

code-machina / index.vue

Last active December 11, 2018 23:09

[nuxt] Links and Navigating Around : nuxt-link

	<!-- nuxt-link 를 사용하여 Navigate 와 Link 를 다룰 수 있음
	to attribute : navigate 경로를 지정-->
	<template>
	<section class="container">
	<nuxt-link to="/users">Users</nuxt-link>
	</section>
	</template>

	<script>
	import Logo from '~/components/Logo.vue'

code-machina / wget-genesis.sh

Created December 9, 2018 09:06

Download genesis.json from gist

wget https://gist.githubusercontent.com/code-machina/2ccfe2843bb8777394f7adf6bb8707d8/raw/1bd98178b34f02aa1d00b9e0c5a0821c3ac60ff6/genesis.json

code-machina / genesis.json

Created December 9, 2018 09:01

Genesis.json to create genesis block in ethereum test-net