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Merge branch 'master' into master
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Skipperro
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11
README.md
11
README.md
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@ -1,5 +1,5 @@
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## openvpn-install
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OpenVPN [road warrior](http://en.wikipedia.org/wiki/Road_warrior_%28computing%29) installer for Ubuntu, Debian, CentOS and Fedora.
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OpenVPN [road warrior](http://en.wikipedia.org/wiki/Road_warrior_%28computing%29) installer for Ubuntu, Debian, AlmaLinux, Rocky Linux, CentOS and Fedora.
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This script will let you set up your own VPN server in no more than a minute, even if you haven't used OpenVPN before. It has been designed to be as unobtrusive and universal as possible.
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@ -11,3 +11,12 @@ Run the script and follow the assistant:
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`wget https://git.io/vpn -O openvpn-install.sh && bash openvpn-install.sh`
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Once it ends, you can run it again to add more users, remove some of them or even completely uninstall OpenVPN.
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### I want to run my own VPN but don't have a server for that
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You can get a VPS from just 2€/month at [AlphaVPS](https://alphavps.com/clients/aff.php?aff=474&pid=422).
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### Donations
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If you want to show your appreciation, you can donate via [PayPal](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=VBAYDL34Z7J6L) or [cryptocurrency](https://pastebin.com/raw/M2JJpQpC). Thanks!
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### Sponsor
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This project is proudly sponsored by our friends at [FrogeHost](https://froge.host/?utm_source=nyr).
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@ -30,9 +30,9 @@ elif [[ -e /etc/debian_version ]]; then
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os="debian"
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os_version=$(grep -oE '[0-9]+' /etc/debian_version | head -1)
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group_name="nogroup"
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elif [[ -e /etc/centos-release ]]; then
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elif [[ -e /etc/almalinux-release || -e /etc/rocky-release || -e /etc/centos-release ]]; then
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os="centos"
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os_version=$(grep -oE '[0-9]+' /etc/centos-release | head -1)
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os_version=$(grep -shoE '[0-9]+' /etc/almalinux-release /etc/rocky-release /etc/centos-release | head -1)
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group_name="nobody"
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elif [[ -e /etc/fedora-release ]]; then
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os="fedora"
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@ -40,7 +40,7 @@ elif [[ -e /etc/fedora-release ]]; then
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group_name="nobody"
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else
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echo "This installer seems to be running on an unsupported distribution.
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Supported distributions are Ubuntu, Debian, CentOS, and Fedora."
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Supported distros are Ubuntu, Debian, AlmaLinux, Rocky Linux, CentOS and Fedora."
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exit
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fi
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@ -50,10 +50,16 @@ This version of Ubuntu is too old and unsupported."
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exit
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fi
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if [[ "$os" == "debian" && "$os_version" -lt 9 ]]; then
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echo "Debian 9 or higher is required to use this installer.
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if [[ "$os" == "debian" ]]; then
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if grep -q '/sid' /etc/debian_version; then
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echo "Debian Testing and Debian Unstable are unsupported by this installer."
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exit
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fi
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if [[ "$os_version" -lt 9 ]]; then
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echo "Debian 9 or higher is required to use this installer.
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This version of Debian is too old and unsupported."
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exit
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exit
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fi
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fi
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if [[ "$os" == "centos" && "$os_version" -lt 7 ]]; then
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@ -99,6 +105,13 @@ new_client () {
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}
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if [[ ! -e /etc/openvpn/server/server.conf ]]; then
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# Detect some Debian minimal setups where neither wget nor curl are installed
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if ! hash wget 2>/dev/null && ! hash curl 2>/dev/null; then
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echo "Wget is required to use this installer."
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read -n1 -r -p "Press any key to install Wget and continue..."
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apt-get update
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apt-get install -y wget
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fi
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clear
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echo 'Welcome to this OpenVPN road warrior installer!'
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# If system has a single IPv4, it is selected automatically. Else, ask the user
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@ -195,7 +208,7 @@ if [[ ! -e /etc/openvpn/server/server.conf ]]; then
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[[ -z "$client" ]] && client="client"
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echo
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echo "OpenVPN installation is ready to begin."
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# Install a firewall in the rare case where one is not already available
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# Install a firewall if firewalld or iptables are not already available
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if ! systemctl is-active --quiet firewalld.service && ! hash iptables 2>/dev/null; then
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if [[ "$os" == "centos" || "$os" == "fedora" ]]; then
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firewall="firewalld"
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@ -216,7 +229,7 @@ LimitNPROC=infinity" > /etc/systemd/system/openvpn-server@server.service.d/disab
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fi
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if [[ "$os" = "debian" || "$os" = "ubuntu" ]]; then
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apt-get update
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apt-get install -y openvpn openssl ca-certificates $firewall
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apt-get install -y --no-install-recommends openvpn openssl ca-certificates $firewall
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elif [[ "$os" = "centos" ]]; then
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yum install -y epel-release
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yum install -y openvpn openssl ca-certificates tar $firewall
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@ -229,17 +242,17 @@ LimitNPROC=infinity" > /etc/systemd/system/openvpn-server@server.service.d/disab
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systemctl enable --now firewalld.service
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fi
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# Get easy-rsa
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easy_rsa_url='https://github.com/OpenVPN/easy-rsa/releases/download/v3.0.8/EasyRSA-3.0.8.tgz'
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easy_rsa_url='https://github.com/OpenVPN/easy-rsa/releases/download/v3.1.7/EasyRSA-3.1.7.tgz'
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mkdir -p /etc/openvpn/server/easy-rsa/
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{ wget -qO- "$easy_rsa_url" 2>/dev/null || curl -sL "$easy_rsa_url" ; } | tar xz -C /etc/openvpn/server/easy-rsa/ --strip-components 1
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chown -R root:root /etc/openvpn/server/easy-rsa/
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cd /etc/openvpn/server/easy-rsa/
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# Create the PKI, set up the CA and the server and client certificates
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./easyrsa init-pki
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./easyrsa --batch init-pki
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./easyrsa --batch build-ca nopass
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EASYRSA_CERT_EXPIRE=3650 ./easyrsa build-server-full server nopass
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EASYRSA_CERT_EXPIRE=3650 ./easyrsa build-client-full "$client" nopass
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EASYRSA_CRL_DAYS=3650 ./easyrsa gen-crl
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./easyrsa --batch --days=3650 build-server-full server nopass
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./easyrsa --batch --days=3650 build-client-full "$client" nopass
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./easyrsa --batch --days=3650 gen-crl
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# Move the stuff we need
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cp pki/ca.crt pki/private/ca.key pki/issued/server.crt pki/private/server.key pki/crl.pem /etc/openvpn/server
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# CRL is read with each client connection, while OpenVPN is dropped to nobody
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@ -283,13 +296,13 @@ server 10.8.0.0 255.255.255.0" > /etc/openvpn/server/server.conf
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1|"")
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# Locate the proper resolv.conf
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# Needed for systems running systemd-resolved
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if grep -q '^nameserver 127.0.0.53' "/etc/resolv.conf"; then
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resolv_conf="/run/systemd/resolve/resolv.conf"
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else
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if grep '^nameserver' "/etc/resolv.conf" | grep -qv '127.0.0.53' ; then
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resolv_conf="/etc/resolv.conf"
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else
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resolv_conf="/run/systemd/resolve/resolv.conf"
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fi
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# Obtain the resolvers from resolv.conf and use them for OpenVPN
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grep -v '^#\|^;' "$resolv_conf" | grep '^nameserver' | grep -oE '[0-9]{1,3}(\.[0-9]{1,3}){3}' | while read line; do
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grep -v '^#\|^;' "$resolv_conf" | grep '^nameserver' | grep -v '127.0.0.53' | grep -oE '[0-9]{1,3}(\.[0-9]{1,3}){3}' | while read line; do
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echo "push \"dhcp-option DNS $line\"" >> /etc/openvpn/server/server.conf
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done
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;;
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echo 'push "dhcp-option DNS 94.140.15.15"' >> /etc/openvpn/server/server.conf
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;;
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esac
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echo 'push "block-outside-dns"' >> /etc/openvpn/server/server.conf
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echo "keepalive 10 120
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cipher AES-256-CBC
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user nobody
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group $group_name
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persist-key
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@ -326,12 +339,12 @@ crl-verify crl.pem" >> /etc/openvpn/server/server.conf
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echo "explicit-exit-notify" >> /etc/openvpn/server/server.conf
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fi
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# Enable net.ipv4.ip_forward for the system
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echo 'net.ipv4.ip_forward=1' > /etc/sysctl.d/30-openvpn-forward.conf
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echo 'net.ipv4.ip_forward=1' > /etc/sysctl.d/99-openvpn-forward.conf
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# Enable without waiting for a reboot or service restart
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echo 1 > /proc/sys/net/ipv4/ip_forward
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if [[ -n "$ip6" ]]; then
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# Enable net.ipv6.conf.all.forwarding for the system
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echo "net.ipv6.conf.all.forwarding=1" >> /etc/sysctl.d/30-openvpn-forward.conf
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echo "net.ipv6.conf.all.forwarding=1" >> /etc/sysctl.d/99-openvpn-forward.conf
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# Enable without waiting for a reboot or service restart
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echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
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fi
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persist-tun
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remote-cert-tls server
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auth SHA512
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cipher AES-256-CBC
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ignore-unknown-option block-outside-dns
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block-outside-dns
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verb 3" > /etc/openvpn/server/client-common.txt
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# Enable and start the OpenVPN service
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systemctl enable --now openvpn-server@server.service
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client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client")
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done
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cd /etc/openvpn/server/easy-rsa/
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EASYRSA_CERT_EXPIRE=3650 ./easyrsa build-client-full "$client" nopass
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./easyrsa --batch --days=3650 build-client-full "$client" nopass
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# Generates the custom client.ovpn
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new_client
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echo
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if [[ "$revoke" =~ ^[yY]$ ]]; then
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cd /etc/openvpn/server/easy-rsa/
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./easyrsa --batch revoke "$client"
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EASYRSA_CRL_DAYS=3650 ./easyrsa gen-crl
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./easyrsa --batch --days=3650 gen-crl
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rm -f /etc/openvpn/server/crl.pem
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cp /etc/openvpn/server/easy-rsa/pki/crl.pem /etc/openvpn/server/crl.pem
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# CRL is read with each client connection, when OpenVPN is dropped to nobody
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semanage port -d -t openvpn_port_t -p "$protocol" "$port"
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fi
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systemctl disable --now openvpn-server@server.service
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rm -rf /etc/openvpn/server
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rm -f /etc/systemd/system/openvpn-server@server.service.d/disable-limitnproc.conf
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rm -f /etc/sysctl.d/30-openvpn-forward.conf
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rm -f /etc/sysctl.d/99-openvpn-forward.conf
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if [[ "$os" = "debian" || "$os" = "ubuntu" ]]; then
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rm -rf /etc/openvpn/server
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apt-get remove --purge -y openvpn
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else
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# Else, OS must be CentOS or Fedora
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yum remove -y openvpn
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rm -rf /etc/openvpn/server
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fi
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echo
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echo "OpenVPN removed!"
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