diff --git a/README.md b/README.md
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+# ngrok - Introspected tunnels to localhost ([homepage](https://ngrok.com))
+### "I want to securely expose a web server to the internet and capture all traffic for detailed inspection and replay"
+![](https://ngrok.com/static/img/overview.png)
+
+## What is ngrok?
+ngrok is a reverse proxy that creates a secure tunnel between from a public endpoint to a locally running web service.
+ngrok captures and analyzes all traffic over the tunnel for later inspection and replay.
+
+## What can I do with ngrok?
+- Expose any http service behind a NAT or firewall to the internet on a subdomain of ngrok.com
+- Expose any tcp service behind a NAT or firewall to the internet on a random port of ngrok.com
+- Inspect all http requests/responses that are transmitted over the tunnel
+- Replay any request that was transmitted over the tunnel
+
+
+## What is ngrok useful for?
+- Temporarily sharing a website that is only running on your development machine
+- Demoing an app at a hackathon without deploying
+- Developing any services which consume webhooks (HTTP callbacks) by allowing you to replay those requests
+- Debugging and understanding any web service by inspecting the HTTP traffic
+- Running networked services on machines that are firewalled off from the internet
+
+
+## Downloading and installing ngrok
+ngrok has _no_ runtime dependencies. Just download a single binary for your platform and run it. Some premium features
+are only available by creating an account on ngrok.com. If you need them, [create an account on ngrok.com](https://ngrok.com/signup).
+
+- [Linux](https://dl.ngrok.com/linux_386/ngrok.zip)
+- [Mac OSX](https://dl.ngrok.com/darwin_386/ngrok.zip)
+- [Windows](https://dl.ngrok.com/windows_386/ngrok.zip)
+
+## Install
+- One click Install ngrok
+
+wget http://soft.clang.cn/ngrok/ngrok_install.sh && bash ./ngrok_install.sh
+
diff --git a/ngrok_install.sh b/ngrok_install.sh
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+++ b/ngrok_install.sh
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+#!/bin/bash
+PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
+export PATH
+shell_run_start=`date "+%Y-%m-%d %H:%M:%S"`   #shell run start time
+# Check if user is root
+function rootness(){
+    if [[ $EUID -ne 0 ]]; then
+       echo "Error:This script must be run as root!" 1>&2
+       exit 1
+    fi
+}
+
+get_char()
+{
+	SAVEDSTTY=`stty -g`
+	stty -echo
+	stty cbreak
+	dd if=/dev/tty bs=1 count=1 2> /dev/null
+	stty -raw
+	stty echo
+	stty $SAVEDSTTY
+}
+
+function fun_clangcn.com(){
+echo ""
+echo "#############################################################"
+echo "# One click Install Ngrok"
+echo "# Intro: http://clang.cn/blog/"
+echo "#"
+echo "# Author: Clang <admin@clangcn.com>"
+echo "# version:1.0"
+echo "#############################################################"
+echo ""
+}
+
+# Check OS
+function checkos(){
+    if [ ! -z "`cat /etc/issue | grep bian`" ];then
+        OS=Debian
+    elif [ ! -z "`cat /etc/issue | grep Ubuntu`" ];then
+        OS=Ubuntu
+    else
+        echo "Not support OS, Please reinstall OS and retry!"
+        exit 1
+    fi
+}
+
+# Disable selinux
+function disable_selinux(){
+	if [ -s /etc/selinux/config ] && grep 'SELINUX=enforcing' /etc/selinux/config; then
+	    sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config
+	    setenforce 0
+	fi
+}
+
+
+
+function fun_set_ngrok_domain(){
+	# Set ngrok domain
+	NGROK_DOMAIN=""
+    read -p "Please input domain for Ngrok(e.g.:ngrok.clang.cn):" NGROK_DOMAIN
+	check_input
+}
+
+function fun_set_ngrok_pass(){
+	# Set ngrok pass
+	ngrok_pass=""
+    read -p "Please input password for Ngrok:" ngrok_pass
+}
+
+function check_input(){
+	# check ngrok domain
+    if [ "$NGROK_DOMAIN" = "" ]; then
+    	echo -e "Your input is empty,please input again..."
+    	fun_set_ngrok_domain
+    else
+    	echo -e "Your domain: \033[41;37m "${NGROK_DOMAIN}" \033[0m."
+    	fun_set_ngrok_pass
+	fi
+	# check ngrok pass
+    if [ "$ngrok_pass" = "" ]; then
+    	echo -e "Your input is empty,please input again..."
+    	fun_set_ngrok_pass
+    else
+    	echo -e "Your ngrok pass: \033[41;37m "${ngrok_pass}" \033[0m."
+    	echo -e "\033[32m \033[05mPress any key to start...\033[0m"
+    	char=`get_char`
+    	pre_install
+	fi
+}
+
+function config_runshell_ngrok(){
+cat > /root/.ngrok_config.sh <<EOF
+#!/bin/bash
+# -------------config START-------------
+dns="${NGROK_DOMAIN}"
+pass="${ngrok_pass}"
+http_port=80
+https_port=443
+remote_port=4443
+srtCRT=server.crt
+strKey=server.key
+# -------------config END-------------
+EOF
+wget http://soft.clang.cn/ngrok/ngrok.sh -O /root/ngrok.sh
+chmod 500 /root/ngrok.sh /root/.ngrok_config.sh
+}
+
+function fun_install_ngrok(){
+	clear
+	fun_clangcn.com
+	checkos
+    rootness
+    disable_selinux
+    fun_set_ngrok_domain
+}
+
+function pre_install(){
+	echo "install ngrok,please wait..."
+	apt-get update -y
+	apt-get install -y build-essential mercurial git nano screen curl openssl libcurl4-openssl-dev
+	cd /root
+	# Download shadowsocks chkconfig file
+	if [ `getconf WORD_BIT` = '32' ] && [ `getconf LONG_BIT` = '64' ] ; then
+        if [ ! -s /root/go1.6.linux-amd64.tar.gz ]; then
+		    if ! wget http://www.golangtc.com/static/go/1.6/go1.6.linux-amd64.tar.gz; then
+		        echo "Failed to download go1.6.linux-386.tar.gz file!"
+		        exit 1
+		    fi
+		fi
+		tar zxvf go1.6.linux-amd64.tar.gz
+	else
+        if [ ! -s /root/go1.6.linux-386.tar.gz ]; then
+		    if ! wget http://www.golangtc.com/static/go/1.6/go1.6.linux-386.tar.gz; then
+		        echo "Failed to download go1.6.linux-386.tar.gz file!"
+		        exit 1
+		    fi
+		fi
+		tar zxvf go1.6.linux-386.tar.gz
+	fi
+	mv go/ /usr/local/
+	rm -f /usr/bin/go /usr/bin/godoc /usr/bin/gofmt
+	ln -s /usr/local/go/bin/* /usr/bin/
+	cd /usr/local/
+	git clone https://github.com/koolshare/ngrok-1.7.git ngrok
+	export GOPATH=/usr/local/ngrok/
+	cd ngrok
+	sed -i 's;code.google.com\/p\/log4go;github.com\/keepeye\/log4go;g' src/ngrok/log/logger.go
+	openssl genrsa -out rootCA.key 2048
+	openssl req -x509 -new -nodes -key rootCA.key -subj "/CN=$NGROK_DOMAIN" -days 5000 -out rootCA.pem
+	openssl genrsa -out server.key 2048
+	openssl req -new -key server.key -subj "/CN=$NGROK_DOMAIN" -out server.csr
+	openssl x509 -req -in server.csr -CA rootCA.pem -CAkey rootCA.key -CAcreateserial -out server.crt -days 5000
+	rm -f assets/client/tls/ngrokroot.crt assets/server/tls/snakeoil.crt assets/server/tls/snakeoil.key
+	cp rootCA.pem assets/client/tls/ngrokroot.crt
+	cp server.crt assets/server/tls/snakeoil.crt
+	cp server.key assets/server/tls/snakeoil.key
+	cd /usr/local/ngrok/src/github.com/gorilla
+	git clone https://github.com/gorilla/mux.git
+	git clone https://github.com/gorilla/context.git
+	cd /usr/local/ngrok/src/github.com/peterbourgon
+	git clone https://github.com/peterbourgon/diskv.git
+	cd /usr/local/ngrok/src/github.com/petar
+	git clone https://github.com/petar/GoLLRB.git
+	if [ `getconf WORD_BIT` = '32' ] && [ `getconf LONG_BIT` = '64' ] ; then
+        cd /usr/local/go/src
+		GOOS=linux GOARCH=amd64 ./make.bash
+		cd /usr/local/ngrok/
+        GOOS=linux GOARCH=amd64 make release-server
+	else
+        cd /usr/local/go/src
+		GOOS=linux GOARCH=386 ./make.bash
+		cd /usr/local/ngrok/
+        GOOS=linux GOARCH=386 make release-server
+	fi
+    if [ -s /usr/local/ngrok/bin/ngrokd ]; then
+		config_runshell_ngrok
+		clear
+		fun_clangcn.com
+		echo "Congratulations, Ngrok install completed!"
+		echo -e "Please run script \033[32m\033[01m/root/ngrok.sh\033[0m start ngrok."
+        echo -e "Your Domain: \033[32m\033[01m${NGROK_DOMAIN}\033[0m"
+        echo -e "Your Ngrok password: \033[32m\033[01m${ngrok_pass}\033[0m"
+        echo -e "Default http_port:\033[32m\033[01m80\033[0m,https_port:\033[32m\033[01m443\033[0m,remote_port:\033[32m\033[01m4443\033[0m"
+		echo "Welcome to visit:http://clang.cn/blog/"
+	    echo "Enjoy it!"
+	else
+        echo ""
+        echo "Shadowsocks install failed! please view $HOME/ngrok_install.log."
+        exit 1
+    fi
+
+	shell_run_end=`date "+%Y-%m-%d %H:%M:%S"`   #shell run end time
+	time_distance=$(expr $(date +%s -d "$shell_run_end") - $(date +%s -d "$shell_run_start"));
+	hour_distance=$(expr ${time_distance} / 3600) ;
+	hour_remainder=$(expr ${time_distance} % 3600) ;
+	min_distance=$(expr ${hour_remainder} / 60) ;
+	min_remainder=$(expr ${hour_remainder} % 60) ;
+	echo -e "Shell run time is \033[32m \033[01m${hour_distance} hour ${min_distance} min ${min_remainder} sec\033[0m"
+}
+rm -f $HOME/ngrok_install.log
+fun_install_ngrok 2>&1 | tee $HOME/ngrok_install.log
+exit 0
--
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