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# Rewrite HTTPs request headers to add "X-Real-IP: <Any-IP-Addr-From-CN>"
# You may need: https://lite.ip2location.com/china-ip-address-ranges

[rewrite_local]
^https?://(\w+\.)?music\.163\.com/.* url request-header (\r\n)User-Agent: request-header $1X-Real-IP: 111.72.0.1$1User-Agent:

# MITM is required to decrypt the HTTPs traffics of Netease Music App

[mitm]
hostname = *.music.126.net, *.music.163.com

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Postgres Cheatsheet

This is a collection of the most common commands I run while administering Postgres databases. The variables shown between the open and closed tags, "<" and ">", should be replaced with a name you choose. Postgres has multiple shortcut functions, starting with a forward slash, "". Any SQL command that is not a shortcut, must end with a semicolon, ";". You can use the keyboard UP and DOWN keys to scroll the history of previous commands you've run.

Setup

installation, Ubuntu

http://www.postgresql.org/download/linux/ubuntu/ https://help.ubuntu.com/community/PostgreSQL

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2018/07/26-10:37:02.433656 700001119000 RocksDB version: 5.14.2
2018/07/26-10:37:02.433730 700001119000 Git sha rocksdb_build_git_sha:5089e121166c46956a8a21c8ef967f1896c239de
2018/07/26-10:37:02.433733 700001119000 Compile date Jul  6 2018
2018/07/26-10:37:02.433735 700001119000 DB SUMMARY
2018/07/26-10:37:02.433781 700001119000 SST files in /Users/eric/Desktop/RocksDBTest dir, Total Num: 0, files: 
2018/07/26-10:37:02.433784 700001119000 Write Ahead Log file in /Users/eric/Desktop/RocksDBTest: 
2018/07/26-10:37:02.433786 700001119000                         Options.error_if_exists: 0
2018/07/26-10:37:02.433790 700001119000                       Options.create_if_missing: 1
2018/07/26-10:37:02.433791 700001119000                         Options.paranoid_checks: 1
2018/07/26-10:37:02.433792 700001119000                                     Options.env: 0x1157c4a18

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import akka.actor._
import akka.pattern.ask
import scala.collection.mutable
import scala.concurrent.Await
import scala.concurrent.duration._

case class AddCount(word: String)
case class ReportCount(word: String)

class WordCountActor extends Actor {

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import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;

public class TestArrayBlockingQueuePerf {

    private static final int CHANNEL_NUM = 8;
    private static final int CHANNEL_BUFFER_SIZE = 65536;

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char *dup = strdup(str.c_str());
for (char *token = strtok(dup, " ,;"); token != NULL; token = strtok(NULL, " ,;")) {
	// do something with token 
}
free(dup);

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#!/usr/bin/env bash
printf "\nattempt to renew certificates at " >>/var/log/certbot_cron.log 2>&1
date >>/var/log/certbot_cron.log 2>&1
certbot renew --pre-hook "systemctl stop nginx" --post-hook "systemctl start nginx" --standalone-supported-challenges http-01 >>/var/log/certbot_cron.log 2>&1
printf "renew finished\n" >>/var/log/certbot_cron.log 2>&1

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Regions for aws
* eu-west-2
* ap-south-1
* us-east-2
* ap-northeast-2
* us-west-2
* ap-southeast-2
* eu-central-1
* eu-west-1
* ca-central-1

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安装 shadowsocks-libev

参考 https://teddysun.com/358.html

配置文件

vim /etc/shadowsocks-libev/redir.json

{

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syntax = "proto3";

package protocol;

import "google/protobuf/empty.proto";

service SSMgrSlave {
    rpc Allocate(AllocateRequest) returns (google.protobuf.Empty) {}
    rpc Free(FreeRequest) returns (google.protobuf.Empty) {}
    rpc GetStats(google.protobuf.Empty) returns (Statistics) {}