【www.bbyears.com--CentOS】
概念性的东西这里不再赘述,网上有太多,一键安装脚本也有很多,但是很多不能用,能用的也仅仅只是在CentOS6下使用,CentOS7基本没看到这些安装脚本。于是花了一些时间来折腾测试,写这个脚本方便以后VPN的一键安装搭建。其中用的开源软件包是openswan和xl2tpd,,中间碰到过很多很多问题,如openswan和xl2tpd之间的兼容性问题。
请容许我这样做,脚本依赖《lnmp一键安装包》,可以在安装完lnmp后,执行这个脚本(vpn_centos.sh)来一键搭建你的个人vpn
CentOS 6、7下IPSEC/L2TP VPN一键安装脚本,如下:
代码如下# Check if user is root
[ $(id -u) != "0" ] && echo "Error: You must be root to run this script" && exit 1
export PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
clear
printf "
#######################################################################
# LNMP/LAMP/LANMP for CentOS/RadHat 5+ Debian 6+ and Ubuntu 12+ #
#######################################################################
"
[ ! -e "src" ] && mkdir src
cd src
. ../functions/download.sh
while :
do
echo
read -p "Please input IP-Range(Default Range: 10.0.2): " iprange
[ -z "$iprange" ] && iprange="10.0.2"
if [ -z "`echo $iprange | grep -o "[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}$"`" ];then
echo -e "33[31minput error! Input format: xxx.xxx.xxx33[0m"
else
break
fi
done
echo
read -p "Please input PSK(Default PSK: psk): " MYPSK
[ -z "$MYPSK" ] && MYPSK="psk"
while :
do
echo
read -p "Please input username: " Username
[ -n "$Username" ] && break
done
while :
do
echo
read -p "Please input password: " Password
[ -n "$Password" ] && break
done
clear
public_IP=`../functions/get_public_ip.py`
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 $SAVEDSTTY
}
echo ""
echo "ServerIP:$public_IP"
echo ""
echo "Server Local IP:$iprange.1"
echo ""
echo "Client Remote IP Range:$iprange.2-$iprange.254"
echo ""
echo "PSK:$MYPSK"
echo ""
echo "Press any key to start..."
char=`get_char`
clear
if [ -n "`grep "CentOS Linux release 7" /etc/redhat-release`" ];then
CentOS_REL=7
for Package in wget ppp iptables iptables-services make gcc gmp-devel xmlto bison flex xmlto libpcap-devel lsof vim-enhanced
do
yum -y install $Package
done
echo "net.ipv4.ip_forward = 1" >> /etc/sysctl.conf
elif [ -n "`grep "CentOS release 6" /etc/redhat-release`" ];then
CentOS_REL=6
for Package in wget ppp iptables make gcc gmp-devel xmlto bison flex xmlto libpcap-devel lsof vim-enhanced
do
yum -y install $Package
done
sed -i "s@net.ipv4.ip_forward.*@net.ipv4.ip_forward = 1@g" /etc/sysctl.conf
else
echo -e "33[31mDoes not support this OS, Please contact the author! 33[0m"
exit 1
fi
sysctl -p
mknod /dev/random c 1 9
src_url=https://download.openswan.org/openswan/old/openswan-2.6/openswan-2.6.38.tar.gz && Download_src
tar xzf openswan-2.6.38.tar.gz
cd openswan-2.6.38
make programs install
cd ..
cat >/etc/ipsec.conf<
nat_traversal=yes
virtual_private=%v4:10.0.0.0/8,%v4:192.168.0.0/16,%v4:172.16.0.0/12
oe=off
protostack=netkey
plutostderrlog=/var/log/ipsec.log
conn L2TP-PSK-NAT
rightsubnet=vhost:%priv
also=L2TP-PSK-noNAT
conn L2TP-PSK-noNAT
authby=secret
type=tunnel
pfs=no
auto=add
keyingtries=3
rekey=no
ikelifetime=8h
keylife=1h
left=$public_IP
leftprotoport=17/1701
right=%any
rightprotoport=17/%any
rightsubnetwithin=0.0.0.0/0
dpddelay=30
dpdtimeout=120
dpdaction=clear
EOF
cat >/etc/ipsec.secrets<
EOF
cat > /usr/bin/zl2tpset << EOF
#!/bin/bash
for each in /proc/sys/net/ipv4/conf/*
do
echo 0 > $each/accept_redirects
echo 0 > $each/send_redirects
done
EOF
chmod +x /usr/bin/zl2tpset
/usr/bin/zl2tpset
[ -z "`grep zl2tpset /etc/rc.local`" ] && echo "/usr/bin/zl2tpset" >> /etc/rc.local
service ipsec restart
src_url=http://pkgs.fedoraproject.org/repo/pkgs/xl2tpd/xl2tpd-1.3.6.tar.gz/2f526cc0c36cf6d8a74f1fb2e08c18ec/xl2tpd-1.3.6.tar.gz && Download_src
tar xzf xl2tpd-1.3.6.tar.gz
cd xl2tpd-1.3.6
make install
[ ! -e "/var/run/xl2tpd" ] && mkdir /var/run/xl2tpd
[ ! -e "/etc/xl2tpd" ] && mkdir /etc/xl2tpd
cd ..
cat >/etc/xl2tpd/xl2tpd.conf<
listen-addr = $public_IP
ipsec saref = yes
[lns default]
ip range = $iprange.2-$iprange.254
local ip = $iprange.1
refuse chap = yes
refuse pap = yes
require authentication = yes
ppp debug = yes
pppoptfile = /etc/ppp/options.xl2tpd
length bit = yes
EOF
cat >/etc/ppp/options.xl2tpd<
ms-dns 8.8.8.8
ms-dns 8.8.4.4
noccp
asyncmap 0
auth
crtscts
lock
hide-password
modem
debug
name l2tpd
proxyarp
lcp-echo-interval 30
lcp-echo-failure 4
idle 1800
mtu 1410
mru 1410
nodefaultroute
connect-delay 5000
logfd 2
logfile /var/log/l2tpd.log
EOF
cat >>/etc/ppp/chap-secrets<
EOF
NETWORK_INT=`route | grep default | awk "{print $NF}"`
iptables -t nat -A POSTROUTING -s ${iprange}.0/24 -o $NETWORK_INT -j MASQUERADE
iptables -I FORWARD -s ${iprange}.0/24 -j ACCEPT
iptables -I FORWARD -d ${iprange}.0/24 -j ACCEPT
iptables -I INPUT -p udp --dport 1701 -j ACCEPT
iptables -I INPUT -p udp --dport 500 -j ACCEPT
iptables -I INPUT -p udp --dport 4500 -j ACCEPT
service iptables save
service ipsec restart
xl2tpd
chkconfig ipsec on
clear
ipsec verify
printf "
Serverip:$public_IP
PSK:$MYPSK
username:$Username
password:$Password
"