p2made

Setup ExpressVPN in OpenVPN on OpenWrt

These instructions will get ExpressVPN up & running in OpenVPN on OpenWrt.

opkg update
opkg install -force-overwrite openvpn-openssl luci-app-openvpn

Log back into Luci & there will now be a menu VPN > OpenVPN.

unixfox

Some hosting providers like scaleway allows to remove the IPv4 from the VPS in order to save 1€/month but doing this will result in losing connectivity to the "IPv4 world".
Or you may have ordered a VPS that only has IPv6 connectivity and you want to access to a resource only accessible from the "IPv4 world".
Here is how to gain your access back to the "IPv4 world".

Change your name servers(s) to DNS64 name servers(s)

Note: You may deploy your own DNS64 & NAT64 server on a separate server by following this tutorial (untested): https://packetpushers.net/nat64-setup-using-tayga/.
Note²: You may find a explanation of what is NAT64 and DNS64 on Wikipedia.

1. Choose a/multiple DNS64 public server(s) that has/have its own NAT64 public service from this list:

jimmychu0807

use std::str;

fn main() {
  // -- FROM: vec of chars --
  let src1: Vec<char> = vec!['j','{','"','i','m','m','y','"','}'];
  // to String
  let string1: String = src1.iter().collect::<String>();
  // to str
  let str1: &str = &src1.iter().collect::<String>();
  // to vec of byte

timercrack

import datetime
import aiohttp
import asyncio
import tqdm

type_name = ['工作日', '休息日', '节假日']
max_conn = asyncio.Semaphore(15) # 最大并发连接数， 默认15

async def fetch(url, day):
    await max_conn.acquire()

timercrack

#!/usr/bin/env python
# from https://groups.google.com/forum/#!topic/construct3/FzYFmdv4qTg
from construct import *


# copied from core.py
def _read_stream(stream, length):
    if length < 0:
        raise ValueError("length must be >= 0", length)
    data = stream.read(length)

sr75

Mac Homebrew (RVM/MySQL/Redis) setup

Follow the steps below to setup a local development environment:

XQuartz

Recommended to download latest XQuartz

iTerm2

href

from collections import namedtuple
def convert(dictionary):
    return namedtuple('GenericDict', dictionary.keys())(**dictionary)

"""
>>> d = dictionary(a=1, b='b', c=[3])
>>> named = convert(d)
>>> named.a == d.a
True
>>> named.b == d.b