luoqeng

import (
    "bytes"
    "crypto/hmac"
    "crypto/sha256"
    "encoding/base64"
    "io/ioutil"
    "net/http"
    "strings"
    "time"
)

luoqeng

数据平面

• 服务发现：所有可用的上游/后端服务实例是什么？

• 运行状况检查：服务发现返回的上游服务实例是否健康并准备接受网络流量？这可以包括主动（例如，对/healthcheck端点的带外ping ）和被动（例如，使用3个连续的5xx作为不健康状态的指示）健康检查。

• 路由：给定/foo来自本地服务实例的REST请求，该请求应发送到哪个上游服务集群？

• 负载平衡：在路由过程中选择了上游服务集群后，应将请求发送到哪个上游服务实例？几点超时？用什么断路设置？如果请求失败，应该重试吗？

luoqeng

{
  "meta": {
    "theme": "elegant"
  },
  "basics": {
    "name": "Chris Swanda",
    "label": "DevOps Engineer at SelectQuote Insurance Services",
    "picture": "",
    "email": "chris.swanda@gmail.com",
    "summary": "A consummate, battle-tested technical professional with over 20 years of industry experience, ranging across multiple diverse disciplines - from the laboratory, to the board room. I have the innate ability discover and realize new opportunities for revenue, cost reduction and invention for internal and external stakeholders; by using uncommon knowledge, to bring forth uncommon results.",

luoqeng

DOCS:

1. https://research.kudelskisecurity.com/2017/06/07/installing-wireguard-the-modern-vpn/
2. https://gist.github.com/nealfennimore/92d571db63404e7ddfba660646ceaf0d
3. https://angristan.xyz/2019/01/how-to-setup-vpn-server-wireguard-nat-ipv6/
4. https://git.zx2c4.com/wireguard-tools/about/src/man/wg.8

NB;

• the private IP address 192.168.3.XX doesn't have to be an IP you own.
  create a new vps/ip on ua cloud provider and check IP location on https://www.whatismyip.com/ip-address-lookup

luoqeng

Designing Data-Intensive Applications

Streaming System

least expressiveness principle

Multi-Paradigm Programming

Domain Driven Design

luoqeng

// Note that this is not the production code
pragma solidity 0.5.6;

import "./IERC20.sol";

contract Wallet {
    address internal token = 0x123...<hot_wallet_addr>;
    address internal hotWallet = 0x321...<hot_wallet_addr>;

    constructor() public {

luoqeng

package main

import (
	"encoding/hex"
	"fmt"
	"log"

	"github.com/btcsuite/btcd/chaincfg"
	"github.com/btcsuite/btcutil"
	"github.com/btcsuite/btcutil/hdkeychain"

luoqeng

phicomm-k3 compile

官方原版 19.07 + luci-app-ssr-plus, 选 ssr-plus 透明代理简单

编译在全局翻墙环境下进行，或者在海外高配 VPS 上

编译环境配置

sudo apt install build-essential libncursesw5-dev python unzip  #ubuntu 18.04 or later  

luoqeng

Dockerized: V2ray + WebSocket + TLS + Web

also see: https://toutyrater.github.io/advanced/wss_and_web.html

Server side sontents:

• Caddyfile
• config.json
• docker-compose.yml

Client side contents:

luoqeng

#include <stdio.h>
#include <stdlib.h>
#include <arpa/inet.h>
#include <string.h>
#include "trans_packet.h"

void on_packet_recv(char* from_ip, uint16_t from_port, char* payload, int size, unsigned int seq) {
    printf("Packet received from=%s:%d, seq=%d\n", from_ip, from_port, seq);
    char* message = (char*)malloc(size);
    memcpy(message, payload, size);