Jinwei Zhao clarkzjw

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Since this is on Hacker News and reddit...

No, I don't distribute my résumé like this. A friend of mine made a joke about me being the kind of person who would do this, so I did (the link on that page was added later). My actual résumé is a good bit crazier.
I apologize for the use of _t in my types. I spend a lot of time at a level where I can do that; "reserved for system libraries? I am the system libraries".
Since people kept complaining, I've fixed the assignments of string literals to non-const char *s.
My use of type * name, however, is entirely intentional.
If you're using an older compiler, you might have trouble with the anonymous unions and the designated initializers - I think gcc 4.4 requires some extra braces to get them working together. Anything reasonably recent should work fine. Clang and gcc (newer than 4.4, at le

Setting up a SSL Cert from Comodo

I use Namecheap.com as a registrar, and they resale SSL Certs from a number of other companies, including Comodo.

These are the steps I went through to set up an SSL cert.

Purchase the cert

How to setup your own CA with OpenSSL

For educational reasons I've decided to create my own CA. Here is what I learned.

First things first

Lets get some context first.

朴素VPN：一个纯内核级静态隧道

由于路由管控系统的建立，实时动态黑洞路由已成为最有效的封锁手段，TCP连接重置和DNS污染成为次要手段，利用漏洞的穿墙方法已不再具有普遍意义。对此应对方法是多样化协议的VPN来抵抗识别。这里介绍一种太简单、有时很朴素的“穷人VPN”。

朴素VPN只需要一次内核配置（Linux内核），即可永久稳定运行，不需要任何用户态守护进程。所有流量转换和加密全部由内核完成，原生性能，开销几乎没有。静态配置，避免动态握手和参数协商产生指纹特征导致被识别。并且支持NAT，移动的内网用户可以使用此方法。支持广泛，基于L2TPv3标准，Linux内核3.2+都有支持，其他操作系统原则上也能支持。但有两个局限：需要root权限；一个隧道只支持一个用户。

朴素VPN利用UDP封装的静态L2TP隧道实现VPN，内核XFRM实现静态IPsec。实际上IP-in-IP隧道即可实现VPN，但是这种协议无法穿越NAT，因此必须利用UDP封装。内核3.18将支持Foo-over-UDP，在UDP里面直接封装IP，与静态的L2TP-over-UDP很类似。

创建一个朴素VPN

Bash Shortcuts

Moving

command	description
ctrl + a	Goto BEGINNING of command line

	#include <stdlib.h>
	#include <stdio.h>

	#include <opencv/cv.h>
	#include <opencv/highgui.h>

	typedef struct {
	unsigned char r;
	unsigned char g;
	unsigned char b;

	#!/usr/bin/env python

	import cookielib
	import json
	import mechanize

	#####
	GOOGLE_USER = '[email protected]'
	GOOGLE_PASS = 'your-password'
	#####

	The Goals of this Gist are to:
	[1] Increase the GnuPG key size limit beyond 4096 bits.
	[2] Provide configuration files that maximize security and anonymity.

	For now, the ideal configuration files have been provided.
	The Debian_Linux_GnuPG_Compiler.bash script works to build GnuPG with the 4096 bit key size limit raised.

	Please provide input. Feedback and changes welcome.

	// ==UserScript==
	// @id iitc-plugin-Mir
	// @name IITC plugin: Hawk Eyes
	// @category Misc
	// @version 1.0.20150105.03
	// @namespace https://github.com/jonatkins/ingress-intel-total-conversion
	// @updateURL https://git.depad.fr/ingress-res/iitc-plugins/raw/master/pad-plugin-hawk_eyes.user.js
	// @downloadURL https://git.depad.fr/ingress-res/iitc-plugins/raw/master/pad-plugin-hawk_eyes.user.js
	// @description See all portals, neutrals included, regardless of the zoom used.
	// @include https://www.ingress.com/intel*