linux shell pptpd

 #!/bin/bash

yum -y install wget

wget http://sourceforge.net/projects/poptop/files/pptpd/pptpd-1.3.4/pptpd-1.3.4.tar.gz/

dir=/usr/src/local

IP=`ifconfig | awk '{print $2}' | grep  'addr:' | cut -d ':' -f2 | grep -v '127.0.0.1' | sed '/^$/d'`

if [ -d "$dir" ];then

tar zxvf pptpd-1.3.4.tar.gz -C  $dir                               ##The path make sure have pptpd tar##

else

mkdir -p $dir

tar zxvf pptpd-1.3.4.tar.gz -C $dir

fi

cd $dir/pptpd-1.3.4/

echo "#####pptpd configure-- make-- make install####"

yum -y install gcc

./configure  --prefix=/usr/local/pptpd  --enable-bcrelay  --with-libwrap && make && make install && echo "====ok====="

mkdir -p /usr/local/pptpd/etc/ppp

##copy pptpd configuration file##

cp $dir/pptpd-1.3.4/samples/pptpd.conf   /usr/local/pptpd/etc/ 

cp $dir/pptpd-1.3.4/samples/options.pptpd /usr/local/pptpd/etc

cp $dir/pptpd-1.3.4/samples/chap-secrets /usr/local/pptpd/etc/ppp

CONF=/usr/local/pptpd/etc/pptpd.conf

##Modify the pptpd.conf file

sed -i '/option/s/\/etc\/ppp/\/usr\/local\/pptpd\/etc/g' $CONF    ##this sed command "/etc/ppp"---to---> "/usr/local/pptpd/etc"

sed -i 's/#debug/debug/g' $CONF                                   ##Remove the debug annotation

sed -i '$a stimeout 30\nremoteip 192.168.10.100-120\n' $CONF      ##(the same as) echo "stimeout 30\nremoteip 192.168.10.100-120\n" >> $CONF

echo "localip  $IP" >> $CONF

##Modify the options.pptpd file

echo "debug" >> /usr/local/pptpd/etc/options.pptpd 

sed -i '$a ms-dns 8.8.8.8' /usr/local/pptpd/etc/options.pptpd

##Set the account(loginuser) and password

cat >> /usr/local/pptpd/etc/ppp/chap-secrets << EOF

admin       pptpd     admin123         192.168.10.100

tom         pptpd     tom123                *

EOF

##Open the routing forwarding##

sed -i '/net.ipv4.ip_forward/s/0/1/g' /etc/sysctl.conf

sysctl -p

##

/usr/local/pptpd/sbin/pptpd -c /usr/local/pptpd/etc/pptpd.conf -o /usr/local/pptpd/etc/options.pptpd