BoizZ/PPTP-L2TP-IPSec-VPN-auto-installation-script-for-CentOS-7

https://github.com/BoizZ/PPTP-L2TP-IPSec-VPN-auto-installation-script-for-CentOS-7

#!/bin/bash
#############################################################
# #
# This is a PPTP and L2TP VPN installation for CentOS 7 #
# Version: 1.1.1 20160507 #
# Author: Bon Hoo #
# Website: http://www.ccwebsite.com #
# #
#############################################################
#检测是否是root用户
if [[ $(id -u) != 0 ]]; then
printf e[42me[31mError: You must be root to run this install script.e[0mn
exit 1
fi
#检测是否是CentOS 7或者RHEL 7
if [[ $(grep release 7. /etc/redhat-release 2>/dev/null | wc -l) -eq 0 ]]; then
printf e[42me[31mError: Your OS is NOT CentOS 7 or RHEL 7.e[0mn
printf e[42me[31mThis install script is ONLY for CentOS 7 and RHEL 7.e[0mn
exit 1
fi
clear
printf
#############################################################
# #
# This is a PPTP and L2TP VPN installation for CentOS 7 #
# Version: 1.1.1 20160507 #
# Author: Bon Hoo #
# Website: http://www.ccwebsite.com #
# #
#############################################################
#获取服务器IP
serverip=$(ifconfig -a |grep -w inet| grep -v 127.0.0.1 |awk {print $2;})
printf e[33m$serveripe[0m is the server IP?
printf If e[33m$serveripe[0m is e[33mcorrecte[0m, press enter directly.
printf If e[33m$serveripe[0m is e[33mincorrecte[0m, please input your server IP.
printf (Default server IP: e[33m$serveripe[0m):
read serveriptmp
if [[ -n $serveriptmp ]]; then
serverip=$serveriptmp
fi
#获取网卡接口名称
ethlist=$(ifconfig | grep : flags | cut -d : -f1)
eth=$(printf $ethlistn | head -n 1)
if [[ $(printf $ethlistn | wc -l) -gt 2 ]]; then
echo ======================================
echo Network Interface list:
printf e[33m$ethliste[0mn
echo ======================================
echo Which network interface you want to listen for ocserv?
printf Default network interface is e[33m$ethe[0m, let it blank to use default network interface:
read ethtmp
if [ -n $ethtmp ]; then
eth=$ethtmp
fi
fi
#设置VPN拨号后分配的IP段
iprange=10.0.1
echo Please input IP-Range:
printf (Default IP-Range: e[33m$iprangee[0m):
read iprangetmp
if [[ -n $iprangetmp ]]; then
iprange=$iprangetmp
fi
#设置预共享密钥
mypsk=ueibo.cn
echo Please input PSK:
printf (Default PSK: e[33mueibo.cne[0m):
read mypsktmp
if [[ -n $mypsktmp ]]; then
mypsk=$mypsktmp
fi
#设置VPN用户名
username=ueibo.com
echo Please input VPN username:
printf (Default VPN username: e[33mueibo.come[0m):
read usernametmp
if [[ -n $usernametmp ]]; then
username=$usernametmp
fi
#随机密码
randstr() {
index=0
str=
for i in {a..z}; do arr[index]=$i; index=$(expr ${index} + 1); done
for i in {A..Z}; do arr[index]=$i; index=$(expr ${index} + 1); done
for i in {0..9}; do arr[index]=$i; index=$(expr ${index} + 1); done
for i in {1..10}; do str=$str${arr[$RANDOM%$index]}; done
echo $str
}
#设置VPN用户密码
password=$(randstr)
printf Please input e[33m$usernamee[0m’s password:n
printf Default password is e[33m$passworde[0m, let it blank to use default password:
read passwordtmp
if [[ -n $passwordtmp ]]; then
password=$passwordtmp
fi
clear
#打印配置参数
clear
echo Server IP:
echo $serverip
echo
echo Server Local IP:
echo $iprange.1
echo
echo Client Remote IP Range:
echo $iprange.10-$iprange.254
echo
echo PSK:
echo $mypsk
echo
echo Press any key to start…
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 $SAVEDSTTY
}
char=$(get_char)
clear
mknod /dev/random c 1 9
#更新组件
yum update -y
#安装epel源
yum install epel-release -y
#安装依赖的组件
yum install -y openswan ppp pptpd xl2tpd wget
#创建ipsec.conf配置文件
rm -f /etc/ipsec.conf
cat >>/etc/ipsec.conf<<EOF
# /etc/ipsec.conf – Libreswan IPsec configuration file
# This file: /etc/ipsec.conf
#
# Enable when using this configuration file with openswan instead of libreswan
#version 2
#
# Manual: ipsec.conf.5
# basic configuration
config setup
# NAT-TRAVERSAL support, see README.NAT-Traversal
nat_traversal=yes
# exclude networks used on server side by adding %v4:!a.b.c.0/24
virtual_private=%v4:10.0.0.0/8,%v4:192.168.0.0/16,%v4:172.16.0.0/12
# OE is now off by default. Uncomment and change to on, to enable.
oe=off
# which IPsec stack to use. auto will try netkey, then klips then mast
protostack=netkey
force_keepalive=yes
keep_alive=1800
conn L2TP-PSK-NAT
rightsubnet=vhost:%priv
also=L2TP-PSK-noNAT
conn L2TP-PSK-noNAT
authby=secret
pfs=no
auto=add
keyingtries=3
rekey=no
ikelifetime=8h
keylife=1h
type=transport
left=$serverip
leftid=$serverip
leftprotoport=17/1701
right=%any
rightprotoport=17/%any
dpddelay=40
dpdtimeout=130
dpdaction=clear
leftnexthop=%defaultroute
rightnexthop=%defaultroute
ike=3des-sha1,aes-sha1,aes256-sha1,aes256-sha2_256
phase2alg=3des-sha1,aes-sha1,aes256-sha1,aes256-sha2_256
sha2-truncbug=yes
# For example connections, see your distribution’s documentation directory,
# or the documentation which could be located at
# /usr/share/docs/libreswan-3.*/ or look at https://www.libreswan.org/
#
# There is also a lot of information in the manual page, “man ipsec.conf”
# You may put your configuration (.conf) file in the “/etc/ipsec.d/” directory
# by uncommenting this line
#include /etc/ipsec.d/*.conf
EOF
#设置预共享密钥配置文件
rm -f /etc/ipsec.secrets
cat >>/etc/ipsec.secrets<<EOF
#include /etc/ipsec.d/*.secrets
$serverip %any: PSK “$mypsk”
EOF
#创建pptpd.conf配置文件
rm -f /etc/pptpd.conf
cat >>/etc/pptpd.conf<<EOF
#ppp /usr/sbin/pppd
option /etc/ppp/options.pptpd
#debug
# stimeout 10
#noipparam
logwtmp
#vrf test
#bcrelay eth1
#delegate
#connections 100
localip $iprange.2
remoteip $iprange.200-254
EOF
#创建xl2tpd.conf配置文件
mkdir -p /etc/xl2tpd
rm -f /etc/xl2tpd/xl2tpd.conf
cat >>/etc/xl2tpd/xl2tpd.conf<<EOF
;
; This is a minimal sample xl2tpd configuration file for use
; with L2TP over IPsec.
;
; The idea is to provide an L2TP daemon to which remote Windows L2TP/IPsec
; clients connect. In this example, the internal (protected) network
; is 192.168.1.0/24. A special IP range within this network is reserved
; for the remote clients: 192.168.1.128/25
; (i.e. 192.168.1.128 … 192.168.1.254)
;
; The listen-addr parameter can be used if you want to bind the L2TP daemon
; to a specific IP address instead of to all interfaces. For instance,
; you could bind it to the interface of the internal LAN (e.g. 192.168.1.98
; in the example below). Yet another IP address (local ip, e.g. 192.168.1.99)
; will be used by xl2tpd as its address on pppX interfaces.
[global]
; ipsec saref = yes
listen-addr = $serverip
auth file = /etc/ppp/chap-secrets
port = 1701
[lns default]
ip range = $iprange.10-$iprange.199
local ip = $iprange.1
refuse chap = yes
refuse pap = yes
require authentication = yes
name = L2TPVPN
ppp debug = yes
pppoptfile = /etc/ppp/options.xl2tpd
length bit = yes
EOF
#创建options.pptpd配置文件
mkdir -p /etc/ppp
rm -f /etc/ppp/options.pptpd
cat >>/etc/ppp/options.pptpd<<EOF
# Authentication
name pptpd
#chapms-strip-domain
# Encryption
# BSD licensed ppp-2.4.2 upstream with MPPE only, kernel module ppp_mppe.o
# {{{
refuse-pap
refuse-chap
refuse-mschap
# Require the peer to authenticate itself using MS-CHAPv2 [Microsoft
# Challenge Handshake Authentication Protocol, Version 2] authentication.
require-mschap-v2
# Require MPPE 128-bit encryption
# (note that MPPE requires the use of MSCHAP-V2 during authentication)
require-mppe-128
# }}}
# OpenSSL licensed ppp-2.4.1 fork with MPPE only, kernel module mppe.o
# {{{
#-chap
#-chapms
# Require the peer to authenticate itself using MS-CHAPv2 [Microsoft
# Challenge Handshake Authentication Protocol, Version 2] authentication.
#+chapms-v2
# Require MPPE encryption
# (note that MPPE requires the use of MSCHAP-V2 during authentication)
#mppe-40 # enable either 40-bit or 128-bit, not both
#mppe-128
#mppe-stateless
# }}}
ms-dns 8.8.4.4
ms-dns 8.8.8.8
#ms-wins 10.0.0.3
#ms-wins 10.0.0.4
proxyarp
#10.8.0.100
# Logging
#debug
#dump
lock
nobsdcomp
novj
novjccomp
nologfd
EOF
#创建options.xl2tpd配置文件
rm -f /etc/ppp/options.xl2tpd
cat >>/etc/ppp/options.xl2tpd<<EOF
#require-pap
#require-chap
#require-mschap
ipcp-accept-local
ipcp-accept-remote
require-mschap-v2
ms-dns 8.8.8.8
ms-dns 8.8.4.4
asyncmap 0
auth
crtscts
lock
hide-password
modem
debug
name l2tpd
proxyarp
lcp-echo-interval 30
lcp-echo-failure 4
mtu 1400
noccp
connect-delay 5000
# To allow authentication against a Windows domain EXAMPLE, and require the
# user to be in a group “VPN Users”. Requires the samba-winbind package
# require-mschap-v2
# plugin winbind.so
# ntlm_auth-helper ‘/usr/bin/ntlm_auth –helper-protocol=ntlm-server-1 –require-membership-of=”EXAMPLEVPN Users”‘
# You need to join the domain on the server, for example using samba:
# http://rootmanager.com/ubuntu-ipsec-l2tp-windows-domain-auth/setting-up-openswan-xl2tpd-with-native-windows-clients-lucid.html
EOF
#创建chap-secrets配置文件,即用户列表及密码
rm -f /etc/ppp/chap-secrets
cat >>/etc/ppp/chap-secrets<<EOF
# Secrets for authentication using CHAP
# client server secret IP addresses
$username pptpd $password *
$username l2tpd $password *
EOF
#修改系统配置,允许IP转发
sysctl -w net.ipv4.ip_forward=1
sysctl -w net.ipv4.conf.all.rp_filter=0
sysctl -w net.ipv4.conf.default.rp_filter=0
sysctl -w net.ipv4.conf.$eth.rp_filter=0
sysctl -w net.ipv4.conf.all.send_redirects=0
sysctl -w net.ipv4.conf.default.send_redirects=0
sysctl -w net.ipv4.conf.all.accept_redirects=0
sysctl -w net.ipv4.conf.default.accept_redirects=0
cat >>/etc/sysctl.conf<<EOF
net.ipv4.ip_forward = 1
net.ipv4.conf.all.rp_filter = 0
net.ipv4.conf.default.rp_filter = 0
net.ipv4.conf.$eth.rp_filter = 0
net.ipv4.conf.all.send_redirects = 0
net.ipv4.conf.default.send_redirects = 0
net.ipv4.conf.all.accept_redirects = 0
net.ipv4.conf.default.accept_redirects = 0
EOF
#允许防火墙端口
cat >>/usr/lib/firewalld/services/pptpd.xml<<EOF
<?xml version=”1.0″ encoding=”utf-8″?>
<service>
<short>pptpd</short>
<description>PPTP and Fuck the GFW</description>
<port protocol=”tcp” port=”1723″/>
</service>
EOF
cat >>/usr/lib/firewalld/services/l2tpd.xml<<EOF
<?xml version=”1.0″ encoding=”utf-8″?>
<service>
<short>l2tpd</short>
<description>L2TP IPSec</description>
<port protocol=”udp” port=”500″/>
<port protocol=”udp” port=”4500″/>
<port protocol=”udp” port=”1701″/>
</service>
EOF
firewall-cmd –reload
firewall-cmd –permanent –add-service=pptpd
firewall-cmd –permanent –add-service=l2tpd
firewall-cmd –permanent –add-service=ipsec
firewall-cmd –permanent –add-masquerade
firewall-cmd –permanent –direct –add-rule ipv4 filter FORWARD 0 -p tcp -i ppp+ -j TCPMSS –syn –set-mss 1356
firewall-cmd –reload
#iptables –table nat –append POSTROUTING –jump MASQUERADE
#iptables -t nat -A POSTROUTING -s $iprange.0/24 -o $eth -j MASQUERADE
#iptables -t nat -A POSTROUTING -s $iprange.0/24 -j SNAT –to-source $serverip
#iptables -I FORWARD -p tcp –syn -i ppp+ -j TCPMSS –set-mss 1356
#service iptables save
#允许开机启动
systemctl enable pptpd ipsec xl2tpd
systemctl restart pptpd ipsec xl2tpd
clear
#测试ipsec
ipsec verify
printf
#############################################################
# #
# This is a PPTP and L2TP VPN installation for CentOS 7 #
# Version: 1.1.1 20160507 #
# Author: Bon Hoo #
# Website: http://www.ccwebsite.com #
# #
#############################################################
if there are no [FAILED] above, then you can
connect to your L2TP VPN Server with the default
user/password below:
ServerIP: $serverip
username: $username
password: $password

PSK: $mypsk

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BoizZ/PPTP-L2TP-IPSec-VPN-auto-installation-script-for-CentOS-7