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@emilstahl
emilstahl / udid.sh
Created Jan 17, 2016
Get iOS device UDID in terminal
View udid.sh
system_profiler SPUSBDataType | sed -n -e '/iPad/,/Serial/p' -e '/iPhone/,/Serial/p' | grep "Serial Number:" | awk -F ": " '{print $2}'
@dergraf
dergraf / vernemq_grafana.json
Created Oct 16, 2015
VerneMQ Grafana Single Node Dashboard
View vernemq_grafana.json
{
"id": 1,
"title": "VerneMQ",
"originalTitle": "VerneMQ",
"tags": [],
"style": "dark",
"timezone": "browser",
"editable": true,
"hideControls": false,
"sharedCrosshair": false,
@blackgear
blackgear / userstyle.styl
Last active Dec 21, 2021
I hate ugly font
View userstyle.styl
CONFIG = {
'Arial Black' : 'ENG',
'Arial' : 'ENG',
'Calibri' : 'ENG',
'Cambria' : 'ENG',
'Candara' : 'ENG',
'Comic Sans MS' : 'ENG',
'Constantia' : 'ENG',
'Corbel' : 'ENG',
'Georgia' : 'ENG',
@grillermo
grillermo / .vimrc
Created Mar 6, 2015
Ctrlp using ag the silver searcher
View .vimrc
"" The Silver Searcher
if executable('ag')
" Use ag over grep
set grepprg=ag\ --nogroup\ --nocolor
" Use ag in CtrlP for listing files. Lightning fast and respects .gitignore
let g:ctrlp_user_command = 'ag %s -l --nocolor -g ""'
" " ag is fast enough that CtrlP doesn't need to cache
let g:ctrlp_use_caching = 0
@GiaoGiaoCat
GiaoGiaoCat / wechat-useragent.js
Created Mar 6, 2015
微信内置浏览器UserAgent的判断
View wechat-useragent.js
// 检测浏览器的 User Agent 应该是非常简单的事情
// 微信在 Android 下的 User Agent
mozilla/5.0 (linux; u; android 4.1.2; zh-cn; mi-one plus build/jzo54k) applewebkit/534.30 (khtml, like gecko) version/4.0 mobile safari/534.30 micromessenger/5.0.1.352
// 微信在 iPhone 下的 User Agent
mozilla/5.0 (iphone; cpu iphone os 5_1_1 like mac os x) applewebkit/534.46 (khtml, like gecko) mobile/9b206 micromessenger/5.0
// 通过javascript判断
// 很容易看出来,微信的 User Agent 都有‘micromessenger’字符串标示,我们判断是否含有这些字符串就OK了
function isWeixinBrowser(){
@klzgrad
klzgrad / Naive-VPN.md
Created Nov 17, 2014
朴素VPN:一个纯内核级静态隧道
View Naive-VPN.md

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

@pnc
pnc / observer.md
Last active Aug 15, 2022
Using Erlang observer/appmon remotely
View observer.md

Using OTP's observer (appmon replacement) remotely

$ ssh remote-host "epmd -names"
epmd: up and running on port 4369 with data:
name some_node at port 58769

Note the running on port for epmd itself and the port of the node you're interested in debugging. Reconnect to the remote host with these ports forwarded:

$ ssh -L 4369:localhost:4369 -L 58769:localhost:58769 remote-host
@lyoshenka
lyoshenka / ngrok-selfhosting-setup.md
Last active Aug 28, 2022
How to setup Ngrok with a self-signed SSL cert
View ngrok-selfhosting-setup.md

Intro

The plan is to create a pair of executables (ngrok and ngrokd) that are connected with a self-signed SSL cert. Since the client and server executables are paired, you won't be able to use any other ngrok to connect to this ngrokd, and vice versa.

DNS

Add two DNS records: one for the base domain and one for the wildcard domain. For example, if your base domain is domain.com, you'll need a record for that and for *.domain.com.

Different Operating Systems

@danwit
danwit / node_acl_example.js
Created Apr 26, 2014
Authorization with node_acl + mongo + express
View node_acl_example.js
/**
* Simple node_acl example with mongoDB and expressjs
*
* Usage:
* 1. Start this as server
* 2. Play with the resoures
*
* Show all permissions (as JSON)
* http://localhost:3500/info
*
@redism
redism / client.js
Created Apr 25, 2014
Simple socket.io server performance test
View client.js
/**
* A simple socket.io client for performance benchmark
*
* Created by redism on 2014. 4. 22..
*/
var SocketIO = require('socket.io-client'),
argv = require('optimist').argv;
var n = argv.n || 10;