hunterforcode

Single file

Source

cat /foo/bar/file.txt | openssl enc -aes-256-cbc -base64 | nc termbin.com 9999
Enter password twice (quickly), note termbin.com URL

Destination

curl -s http://termbin.com/{id} | openssl enc -aes-256-cbc -base64 -d > file.txt

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

Apple has introduced a new .plist file format in 10.4. You'll notice that you can no longer just edit a .plist file in TextEdit or other text editors. The reason for this is that the files are now binary rather than raw XML.

Luckily for us, there is a command line utility called plutil that can convert back and forth between the two formats. You can convert the .plist file you want to edit to XML format, edit it in TextEdit, then convert back to binary for use. To convert a binary .plist file to XML format for editing, type this in the Terminal:

plutil -convert xml1 some_file.plist

To convert an XML .plist file to binary for use:

plutil -convert binary1 some_other_file.plist

	#!/bin/bash

	method=$1

	ss-tunnel -k test -m $method -l 8387 -L 127.0.0.1:8388 -s 127.0.0.1 -p 8389 &
	ss_tunnel_pid=$!
	ss-server -k test -m $method -s 127.0.0.1 -p 8389 &
	ss_server_pid=$!

	iperf -s -p 8388 &

	#!/bin/bash

	if [ "$4" == "" ]; then
	echo "usage: $0 <local_ip> <remote_ip> <new_local_ip> <new_remote_ip>"
	echo "creates an ipsec tunnel between two machines"
	exit 1
	fi

	SRC="$1"; shift
	DST="$1"; shift

	# taken from http://www.piware.de/2011/01/creating-an-https-server-in-python/
	# generate server.xml with the following command:
	# openssl req -new -x509 -keyout server.pem -out server.pem -days 365 -nodes
	# run as follows:
	# python simple-https-server.py
	# then in your browser, visit:
	# https://localhost:4443

	import BaseHTTPServer, SimpleHTTPServer
	import ssl

	# useful for running ssl server on localhost
	# which in turn is useful for working with WebSocket Secure (wss)

	# copied from http://www.piware.de/2011/01/creating-an-https-server-in-python/