QuantumGhost

class Symbol:
    __registry = {}
    __lock = Lock()
    __slots__ = ('name',)

    def __new__(cls, name):
        instance = cls.__registry.get(name)
        if not instance:
            with cls.__lock:
                # A classical double-checked lock pattern.

QuantumGhost

# Github already dropped support for diffie-hellman-group1-sha1 and diffie-hellman-group14-sha1
# FYI: https://githubengineering.com/crypto-deprecation-notice/
# Host github.com
#     KexAlgorithms curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1

Host *
    KexAlgorithms curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256
    PasswordAuthentication no    # comment this if you need password authentication (for example ssh into a VM)
    ChallengeResponseAuthentication no
    PubkeyAuthentication yes

QuantumGhost

template <typename Left, typename Right>
struct ConcatExpr;

template <typename Left, typename Right>
struct AltExpr;

template <typename SubExpr>
struct RepeatExpr;

template <char ch>

QuantumGhost

clowwindy设计Shadowsocks的思路分析以及设计理念

鄙人不才，尝试站在原作者clowwindy的角度，来分析一下原版协议的设计思路和理念。 没参与过最初开发，不过设计了AEAD这个协议。读了一些资料，评论。

在 7:58 PM, 31 Aug 2015 作者发了这么一段话，我很好奇其中的指代内容，遂有本文。

眼睁睁看着一群人把一个东西搞错然后朝着错误的方向走了。不过懒得管了 =。=

QuantumGhost

##ss-redir 的 iptables 配置(透明代理)

透明代理指对客户端透明，客户端不需要进行任何设置就使用了网管设置的代理规则

创建 /etc/ss-redir.json 本地监听 7777 运行ss-redir -v -c /etc/ss-redir.json

iptables -t nat -N SHADOWSOCKS
# 在 nat 表中创建新链
iptables -t nat -A SHADOWSOCKS -p tcp --dport 23596 -j RETURN
# 23596 是 ss 代理服务器的端口，即远程 shadowsocks 服务器提供服务的端口，如果你有多个 ip 可用,但端口一致，就设置这个

QuantumGhost

// Just before switching jobs:
// Add one of these.
// Preferably into the same commit where you do a large merge.
//
// This started as a tweet with a joke of "C++ pro-tip: #define private public",
// and then it quickly escalated into more and more evil suggestions.
// I've tried to capture interesting suggestions here.
//
// Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_,
// @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant,

QuantumGhost

Resize a Hard Disk for a Virtual Machine

Our Virtual Machines are provisioned using Vagrant from a Linux base box to run using VirutalBox. If the Hard Disk space runs out and you cannot remove files to free-up space, you can resize the Hard Disk using some VirtualBox and Linux commands.

Some assumptions

The following steps assume you've got a set-up like mine, where:

QuantumGhost

Libraries

• Web framework: Play
• Actors: akka
• Asynchronous Programming: monix (for tasks, reactors, observables, scheduler etc)
• Authentication: ?
• Authorization: ?
• ORM: doobie (for PostgreSQL)
• Evolutions: flyaway
• I/O: better-files

QuantumGhost

import cProfile
import functools
import pstats

from cStringIO import StringIO


def profile(func):
    @functools.wraps(func)
    def wrapped(*args, **kwargs):

QuantumGhost

@startuml
' uncomment the line below if you're using computer with a retina display
' skinparam dpi 300
!define Table(name,desc) class name as "desc" << (T,#FFAAAA) >>
' we use bold for primary key
' green color for unique
' and underscore for not_null
!define primary_key(x) <b>x</b>
!define unique(x) <color:green>x</color>
!define not_null(x) <u>x</u>