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#!/bin/bash # Setup Simple PPTP VPN server for CentOS 7 on Host1plus # Copyright (C) 2015-2016 Danyl Zhang <1475811550@> and contributors # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. printhelp() { echo " Usage: ./ [OPTION] If you are using custom password , Make sure its more than 8 characters. Otherwise it will generate random password for you. If you trying set password only. It will generate Default user with Random password. example: ./ -u myusr -p mypass Use without parameter [ ./ ] to use default username and Random password -u, --username Enter the Username -p, --password Enter the Password " } while [ "$1" != "" ]; do case "$1" in -u | --username ) NAME=$2; shift 2 ;; -p | --password ) PASS=$2; shift 2 ;; -h | --help ) echo "$(printhelp)"; exit; shift; break ;; esac done # Check if user is root [ $(id -u) != "0" ] && { echo -e "\033[31mError: You must be root to run this script\033[0m"; exit 1; } export PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin clear yum -y update yum -y install epel-release yum -y install firewalld net-tools curl ppp pptpd echo 'net.ipv4.ip_forward = 1' >> /etc/sysctl.conf sysctl -p #no liI10oO chars in password LEN=$(echo ${#PASS}) if [ -z "$PASS" ] || [ $LEN -lt 8 ] || [ -z "$NAME"] then P1=`cat /dev/urandom | tr -cd abcdefghjkmnpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ23456789 | head -c 3` P2=`cat /dev/urandom | tr -cd abcdefghjkmnpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ23456789 | head -c 3` P3=`cat /dev/urandom | tr -cd abcdefghjkmnpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ23456789 | head -c 3` PASS="$P1-$P2-$P3" fi if [ -z "$NAME" ] then NAME="vpn" fi cat >> /etc/ppp/chap-secrets <<END $NAME pptpd $PASS * END cat >/etc/pptpd.conf <<END option /etc/ppp/options.pptpd #logwtmp localip 192.168.2.1 remoteip 192.168.2.10-100 END cat >/etc/ppp/options.pptpd <<END name pptpd refuse-pap refuse-chap refuse-mschap require-mschap-v2 require-mppe-128 ms-dns 8.8.8.8 ms-dns 209.244.0.3 proxyarp lock nobsdcomp novj novjccomp nologfd END ETH=`route | grep default | awk '{print $NF}'` systemctl restart firewalld.service systemctl enable firewalld.service firewall-cmd --set-default-zone=public firewall-cmd --add-interface=$ETH firewall-cmd --add-port=22/tcp --permanent firewall-cmd --add-port=1723/tcp --permanent firewall-cmd --add-masquerade --permanent firewall-cmd --permanent --direct --add-rule ipv4 filter INPUT 0 -i $ETH -p gre -j ACCEPT firewall-cmd --reload cat > /etc/ppp/ip-up.local << END /sbin/ifconfig $1 mtu 1400 END chmod +x /etc/ppp/ip-up.local systemctl restart pptpd.service systemctl enable pptpd.service VPN_IP=`curl ipv4.icanhazip.com` clear echo -e "You can now connect to your VPN via your external IP \033[32m${VPN_IP}\033[0m" echo -e "Username: \033[32m${NAME}\033[0m" echo -e "Password: \033[32m${PASS}\033[0m"