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@resilar
resilar / ctz.c
Created June 15, 2016 13:59
de Bruijn CTZ with proper handling of 0
// you faggots probably know the de bruijn trick to count trailing zeros:
inline int ctz32_retarded(uint32_t x)
{
static const unsigned char debruijn_ctz32[32] = {
0, 1, 28, 2, 29, 14, 24, 3, 30, 22, 20, 15, 25, 17, 4, 8,
31, 27, 13, 23, 21, 19, 16, 7, 26, 12, 18, 6, 11, 5, 10, 9
};
return debruijn_ctz32[((x & -x) * 0x077CB531) >> 27];
}
@soarez
soarez / ca.md
Last active October 29, 2024 18:12
How to setup your own CA with OpenSSL

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.

@wen-long
wen-long / ss-redir 透明代理.md
Last active March 18, 2024 12:13
ss-redir 透明代理.md

##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
@ricardozea
ricardozea / ie67891011-css-hacks.txt
Last active February 2, 2023 15:17
IE CSS hacks - IE6, 7, 8, 9, 10, 11
IE6 Only
==================
_selector {...}
IE6 & IE7
==================
*html or { _property: }
IE7 Only
==================
@yefuchs
yefuchs / gfw_contributors.md
Last active March 4, 2024 05:24
GFW Contributers

#The Great Firewall (GFW) Contributors List

注:数据来源为 dblp 和 cndblp, 下面括号中的数字表示 dblp 中显示的跟方滨兴合作论文的数量

###Binxing Fang (方滨兴)

中国工程院院士,北京邮电大学教授,中国科学院计算技术研究所网络方向首席科学家
http://en.wikipedia.org/wiki/Fang_Binxing