From f94a2a736da255397a85c6da798a7a5531270f23 Mon Sep 17 00:00:00 2001 From: Angristan Date: Tue, 15 Mar 2016 20:19:18 +0100 Subject: [PATCH] Delete openvpn-install-legacy.sh https://github.com/Angristan/OpenVPN-install/commit/157c27512a9761a20650e75993b964eb1ab07fcd --- openvpn-install-legacy.sh | 372 -------------------------------------- 1 file changed, 372 deletions(-) delete mode 100644 openvpn-install-legacy.sh diff --git a/openvpn-install-legacy.sh b/openvpn-install-legacy.sh deleted file mode 100644 index 617b8e7..0000000 --- a/openvpn-install-legacy.sh +++ /dev/null @@ -1,372 +0,0 @@ -#!/bin/bash -# OpenVPN road warrior installer for Debian, Ubuntu and CentOS - -# This script will work on Debian, Ubuntu, CentOS and probably other distros -# of the same families, although no support is offered for them. It isn't -# bulletproof but it will probably work if you simply want to setup a VPN on -# your Debian/Ubuntu/CentOS box. It has been designed to be as unobtrusive and -# universal as possible. - - -if [[ "$EUID" -ne 0 ]]; then - echo "Sorry, you need to run this as root" - exit 1 -fi - - -if [[ ! -e /dev/net/tun ]]; then - echo "TUN is not available" - exit 2 -fi - - -if grep -qs "CentOS release 5" "/etc/redhat-release"; then - echo "CentOS 5 is too old and not supported" - exit 3 -fi - -if [[ -e /etc/debian_version ]]; then - OS=debian - RCLOCAL='/etc/rc.local' -elif [[ -e /etc/centos-release || -e /etc/redhat-release ]]; then - OS=centos - RCLOCAL='/etc/rc.d/rc.local' - # Needed for CentOS 7 - chmod +x /etc/rc.d/rc.local -else - echo "Looks like you aren't running this installer on a Debian, Ubuntu or CentOS system" - exit 4 -fi - -newclient () { - # Generates the custom client.ovpn - cp /etc/openvpn/client-common.txt ~/$1.ovpn - echo "" >> ~/$1.ovpn - cat /etc/openvpn/easy-rsa/pki/ca.crt >> ~/$1.ovpn - echo "" >> ~/$1.ovpn - echo "" >> ~/$1.ovpn - cat /etc/openvpn/easy-rsa/pki/issued/$1.crt >> ~/$1.ovpn - echo "" >> ~/$1.ovpn - echo "" >> ~/$1.ovpn - cat /etc/openvpn/easy-rsa/pki/private/$1.key >> ~/$1.ovpn - echo "" >> ~/$1.ovpn -} - - -# Try to get our IP from the system and fallback to the Internet. -# I do this to make the script compatible with NATed servers (LowEndSpirit/Scaleway) -# and to avoid getting an IPv6. -IP=$(ip addr | grep 'inet' | grep -v inet6 | grep -vE '127\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | grep -o -E '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | head -1) -if [[ "$IP" = "" ]]; then - IP=$(wget -qO- ipv4.icanhazip.com) -fi - - -if [[ -e /etc/openvpn/server.conf ]]; then - while : - do - clear - echo "Looks like OpenVPN is already installed" - echo "" - echo "What do you want to do?" - echo " 1) Add a cert for a new user" - echo " 2) Revoke existing user cert" - echo " 3) Remove OpenVPN" - echo " 4) Exit" - read -p "Select an option [1-4]: " option - case $option in - 1) - echo "" - echo "Tell me a name for the client cert" - echo "Please, use one word only, no special characters" - read -p "Client name: " -e -i client CLIENT - cd /etc/openvpn/easy-rsa/ - ./easyrsa build-client-full $CLIENT nopass - # Generates the custom client.ovpn - newclient "$CLIENT" - echo "" - echo "Client $CLIENT added, certs available at ~/$CLIENT.ovpn" - exit - ;; - 2) - # This option could be documented a bit better and maybe even be simplimplified - # ...but what can I say, I want some sleep too - NUMBEROFCLIENTS=$(tail -n +2 /etc/openvpn/easy-rsa/pki/index.txt | grep -c "^V") - if [[ "$NUMBEROFCLIENTS" = '0' ]]; then - echo "" - echo "You have no existing clients!" - exit 5 - fi - echo "" - echo "Select the existing client certificate you want to revoke" - tail -n +2 /etc/openvpn/easy-rsa/pki/index.txt | grep "^V" | cut -d '=' -f 2 | nl -s ') ' - if [[ "$NUMBEROFCLIENTS" = '1' ]]; then - read -p "Select one client [1]: " CLIENTNUMBER - else - read -p "Select one client [1-$NUMBEROFCLIENTS]: " CLIENTNUMBER - fi - CLIENT=$(tail -n +2 /etc/openvpn/easy-rsa/pki/index.txt | grep "^V" | cut -d '=' -f 2 | sed -n "$CLIENTNUMBER"p) - cd /etc/openvpn/easy-rsa/ - ./easyrsa --batch revoke $CLIENT - ./easyrsa gen-crl - rm -rf pki/reqs/$CLIENT.req - rm -rf pki/private/$CLIENT.key - rm -rf pki/issued/$CLIENT.crt - rm -rf /etc/openvpn/crl.pem - cp /etc/openvpn/easy-rsa/pki/crl.pem /etc/openvpn/crl.pem - echo "" - echo "Certificate for client $CLIENT revoked" - exit - ;; - 3) - echo "" - read -p "Do you really want to remove OpenVPN? [y/n]: " -e -i n REMOVE - if [[ "$REMOVE" = 'y' ]]; then - PORT=$(grep '^port ' /etc/openvpn/server.conf | cut -d " " -f 2) - if pgrep firewalld; then - # Using both permanent and not permanent rules to avoid a firewalld reload. - firewall-cmd --zone=public --remove-port=$PORT/udp - firewall-cmd --zone=trusted --remove-source=10.8.0.0/24 - firewall-cmd --permanent --zone=public --remove-port=$PORT/udp - firewall-cmd --permanent --zone=trusted --remove-source=10.8.0.0/24 - fi - if iptables -L | grep -qE 'REJECT|DROP'; then - sed -i "/iptables -I INPUT -p udp --dport $PORT -j ACCEPT/d" $RCLOCAL - sed -i "/iptables -I FORWARD -s 10.8.0.0\/24 -j ACCEPT/d" $RCLOCAL - sed -i "/iptables -I FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT/d" $RCLOCAL - fi - sed -i '/iptables -t nat -A POSTROUTING -s 10.8.0.0\/24 -j SNAT --to /d' $RCLOCAL - if hash sestatus 2>/dev/null; then - if sestatus | grep "Current mode" | grep -qs "enforcing"; then - if [[ "$PORT" != '1194' ]]; then - semanage port -d -t openvpn_port_t -p udp $PORT - fi - fi - fi - if [[ "$OS" = 'debian' ]]; then - apt-get remove --purge -y openvpn openvpn-blacklist - else - yum remove openvpn -y - fi - rm -rf /etc/openvpn - rm -rf /usr/share/doc/openvpn* - echo "" - echo "OpenVPN removed!" - else - echo "" - echo "Removal aborted!" - fi - exit - ;; - 4) exit;; - esac - done -else - clear - echo 'Welcome to this quick OpenVPN "road warrior" installer' - echo "" - # OpenVPN setup and first user creation - echo "I need to ask you a few questions before starting the setup" - echo "You can leave the default options and just press enter if you are ok with them" - echo "" - echo "First I need to know the IPv4 address of the network interface you want OpenVPN" - echo "listening to." - read -p "IP address: " -e -i $IP IP - echo "" - echo "What port do you want for OpenVPN?" - read -p "Port: " -e -i 1194 PORT - echo "" - echo "What DNS do you want to use with the VPN?" - echo " 1) Current system resolvers" - echo " 2) FDN (recommended)" - echo " 3) OpenDNS" - echo " 4) NTT" - echo " 5) Google" - echo " 6) Hurricane Electric" - read -p "DNS [1-6]: " -e -i 2 DNS - echo "" - echo "Finally, tell me your name for the client cert" - echo "Please, use one word only, no special characters" - read -p "Client name: " -e -i client CLIENT - echo "" - echo "Okay, that was all I needed. We are ready to setup your OpenVPN server now" - read -n1 -r -p "Press any key to continue..." - if [[ "$OS" = 'debian' ]]; then - apt-get update - apt-get install openvpn iptables openssl ca-certificates -y - else - # Else, the distro is CentOS - yum install epel-release -y - yum install openvpn iptables openssl wget ca-certificates -y - fi - # An old version of easy-rsa was available by default in some openvpn packages - if [[ -d /etc/openvpn/easy-rsa/ ]]; then - rm -rf /etc/openvpn/easy-rsa/ - fi - # Get easy-rsa - wget -O ~/EasyRSA-3.0.1.tgz https://github.com/OpenVPN/easy-rsa/releases/download/3.0.1/EasyRSA-3.0.1.tgz - tar xzf ~/EasyRSA-3.0.1.tgz -C ~/ - mv ~/EasyRSA-3.0.1/ /etc/openvpn/ - mv /etc/openvpn/EasyRSA-3.0.1/ /etc/openvpn/easy-rsa/ - chown -R root:root /etc/openvpn/easy-rsa/ - rm -rf ~/EasyRSA-3.0.1.tgz - cd /etc/openvpn/easy-rsa/ - #Use 4096 bits DH instead of 2048 bits - echo "set_var EASYRSA_KEY_SIZE 4096" > vars - # Create the PKI, set up the CA, the DH params and the server + client certificates - ./easyrsa init-pki - ./easyrsa --batch build-ca nopass - ./easyrsa gen-dh - ./easyrsa build-server-full server nopass - ./easyrsa build-client-full $CLIENT nopass - ./easyrsa gen-crl - # Move the stuff we need - cp pki/ca.crt pki/private/ca.key pki/dh.pem pki/issued/server.crt pki/private/server.key /etc/openvpn/easy-rsa/pki/crl.pem /etc/openvpn - # Generate server.conf - echo "port $PORT -proto udp -dev tun -sndbuf 0 -rcvbuf 0 -ca ca.crt -cert server.crt -key server.key -dh dh.pem -cipher AES-256-CBC -topology subnet -server 10.8.0.0 255.255.255.0 -ifconfig-pool-persist ipp.txt" > /etc/openvpn/server.conf - echo 'push "redirect-gateway def1 bypass-dhcp"' >> /etc/openvpn/server.conf - # DNS - case $DNS in - 1) - # Obtain the resolvers from resolv.conf and use them for OpenVPN - grep -v '#' /etc/resolv.conf | grep 'nameserver' | grep -E -o '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | while read line; do - echo "push \"dhcp-option DNS $line\"" >> /etc/openvpn/server.conf - done - ;; - 2) - echo 'push "dhcp-option DNS 80.67.169.12"' >> /etc/openvpn/server.conf - echo 'push "dhcp-option DNS 80.67.169.40"' >> /etc/openvpn/server.conf - ;; - 3) - echo 'push "dhcp-option DNS 208.67.222.222"' >> /etc/openvpn/server.conf - echo 'push "dhcp-option DNS 208.67.220.220"' >> /etc/openvpn/server.conf - ;; - 4) - echo 'push "dhcp-option DNS 129.250.35.250"' >> /etc/openvpn/server.conf - echo 'push "dhcp-option DNS 129.250.35.251"' >> /etc/openvpn/server.conf - ;; - 5) - echo 'push "dhcp-option DNS 8.8.8.8"' >> /etc/openvpn/server.conf - echo 'push "dhcp-option DNS 8.8.4.4"' >> /etc/openvpn/server.conf - ;; - 6) - echo 'push "dhcp-option DNS 74.82.42.42"' >> /etc/openvpn/server.conf - ;; - esac - echo "keepalive 10 120 -comp-lzo -persist-key -persist-tun -crl-verify crl.pem" >> /etc/openvpn/server.conf - # Enable net.ipv4.ip_forward for the system - if [[ "$OS" = 'debian' ]]; then - sed -i 's|#net.ipv4.ip_forward=1|net.ipv4.ip_forward=1|' /etc/sysctl.conf - else - # CentOS 5 and 6 - sed -i 's|net.ipv4.ip_forward = 0|net.ipv4.ip_forward = 1|' /etc/sysctl.conf - # CentOS 7 - if ! grep -q "net.ipv4.ip_forward=1" "/etc/sysctl.conf"; then - echo 'net.ipv4.ip_forward=1' >> /etc/sysctl.conf - fi - fi - # Avoid an unneeded reboot - echo 1 > /proc/sys/net/ipv4/ip_forward - # Set NAT for the VPN subnet - iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -j SNAT --to $IP - sed -i "1 a\iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -j SNAT --to $IP" $RCLOCAL - if pgrep firewalld; then - # We don't use --add-service=openvpn because that would only work with - # the default port. Using both permanent and not permanent rules to - # avoid a firewalld reload. - firewall-cmd --zone=public --add-port=$PORT/udp - firewall-cmd --zone=trusted --add-source=10.8.0.0/24 - firewall-cmd --permanent --zone=public --add-port=$PORT/udp - firewall-cmd --permanent --zone=trusted --add-source=10.8.0.0/24 - fi - if iptables -L | grep -qE 'REJECT|DROP'; then - # If iptables has at least one REJECT rule, we asume this is needed. - # Not the best approach but I can't think of other and this shouldn't - # cause problems. - iptables -I INPUT -p udp --dport $PORT -j ACCEPT - iptables -I FORWARD -s 10.8.0.0/24 -j ACCEPT - iptables -I FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT - sed -i "1 a\iptables -I INPUT -p udp --dport $PORT -j ACCEPT" $RCLOCAL - sed -i "1 a\iptables -I FORWARD -s 10.8.0.0/24 -j ACCEPT" $RCLOCAL - sed -i "1 a\iptables -I FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT" $RCLOCAL - fi - # If SELinux is enabled and a custom port was selected, we need this - if hash sestatus 2>/dev/null; then - if sestatus | grep "Current mode" | grep -qs "enforcing"; then - if [[ "$PORT" != '1194' ]]; then - # semanage isn't available in CentOS 6 by default - if ! hash semanage 2>/dev/null; then - yum install policycoreutils-python -y - fi - semanage port -a -t openvpn_port_t -p udp $PORT - fi - fi - fi - # And finally, restart OpenVPN - if [[ "$OS" = 'debian' ]]; then - # Little hack to check for systemd - if pgrep systemd-journal; then - systemctl restart openvpn@server.service - else - /etc/init.d/openvpn restart - fi - else - if pgrep systemd-journal; then - systemctl restart openvpn@server.service - systemctl enable openvpn@server.service - else - service openvpn restart - chkconfig openvpn on - fi - fi - # Try to detect a NATed connection and ask about it to potential LowEndSpirit/Scaleway users - EXTERNALIP=$(wget -qO- ipv4.icanhazip.com) - if [[ "$IP" != "$EXTERNALIP" ]]; then - echo "" - echo "Looks like your server is behind a NAT!" - echo "" - echo "If your server is NATed (e.g. LowEndSpirit, Scaleway), I need to know the external IP" - echo "If that's not the case, just ignore this and leave the next field blank" - read -p "External IP: " -e USEREXTERNALIP - if [[ "$USEREXTERNALIP" != "" ]]; then - IP=$USEREXTERNALIP - fi - fi - # client-common.txt is created so we have a template to add further users later - echo "client -dev tun -proto udp -sndbuf 0 -rcvbuf 0 -remote $IP $PORT -resolv-retry infinite -nobind -persist-key -persist-tun -remote-cert-tls server -cipher AES-256-CBC -comp-lzo" > /etc/openvpn/client-common.txt - # Generates the custom client.ovpn - newclient "$CLIENT" - echo "" - echo "Finished!" - echo "" - echo "Your client config is available at ~/$CLIENT.ovpn" - echo "If you want to add more clients, you simply need to run this script another time!" -fi