mirror of
https://github.com/angristan/openvpn-install.git
synced 2024-12-04 22:45:32 +01:00
Merge pull request #1 from hybtoy/openvpn-2.4-update
Openvpn 2.4 update
This commit is contained in:
hybtoy
GitHub
commit
ac1afd1c64
37
README.md
37
README.md
@ -1,4 +1,4 @@
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## openvpn-install
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## OpenVPN-install
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Secure OpenVPN installer for Debian, Ubuntu, CentOS and Arch Linux.
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This script will let you setup your own secure VPN server in just a few minutes.
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@ -12,6 +12,8 @@ Here is a preview of the installer :
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**You have to enable the TUN module otherwise OpenVPN won't work.** Ask your host if you don't know how to do it. If the TUN module is not enabled, the script will warn you and exit.
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You can get a cheap VPS to run this script for $2.50/month worldwide at [Vultr](https://goo.gl/Xyd1Sc) or 3€/month for unlimited bandwidth in France at [PulseHeberg](https://goo.gl/oBhgaj).
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First, get the script and make it executable :
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```
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@ -48,23 +50,27 @@ On the client-side, it's less problematic, but if you want to use an OpenVPN ser
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## Compatibility
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The script is made to work on these OS :
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- Debian 7
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- Debian 8
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- Ubuntu 12.04 LTS
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- Ubuntu 14.04 LTS
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- Ubuntu 16.04 LTS
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- Ubuntu 16.10
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- CentOS 6
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- CentOS 7
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- Arch Linux
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| | i386 | amd64 | armhf | arm64 |
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|:------------:|:----:|:-----:|:-----:|:-----:|
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| Debian 8 | ✔️ | ✔️ | ❌ | ❌ |
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| Debian 9 | ✔️ | ✔️ | ✔️ | ✔️ |
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| Ubuntu 14.04 | ✔️ | ✔️ | ❌ | ❌ |
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| Ubuntu 16.04 | ✔️ | ✔️ | ❌ | ❌ |
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| Ubuntu 17.04 | ✔️ | ✔️ | ✔️ | ✔️ |
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| CentOS 6 | ✔️ | ✔️ | ❔ | ❔ |
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| CentOS 7 | ✔️ | ✔️ | ✔️ | ❔ |
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| Arch Linux | ✔️ | ✔️ | ❔ | ❌[(❔)](https://github.com/Angristan/OpenVPN-install/issues/99) |
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- ✔️ = tested and compatible
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- ❔ = untested
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- ❌ = tested and not compatible
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(It should also work on Debian unstable/testing and Ubuntu beta).
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If your're using an Ubuntu version that is not supported by the script, be aware that it's not supported by Ubuntu either, thus it's insecure.
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You can get a cheap VPS to run this script for 3€/month at [PulseHeberg](https://goo.gl/oBhgaj).
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## Features
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This fork includes the following features :
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@ -79,7 +85,7 @@ This fork includes the following features :
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- Up-to-date OpenVPN thanks to [EPEL](http://fedoraproject.org/wiki/EPEL) for CentOS and [swupdate.openvpn.net](https://community.openvpn.net/openvpn/wiki/OpenvpnSoftwareRepos) for Ubuntu and Debian. These are third-party yet trusted repositories.
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- Other improvements !
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##DNS
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## DNS
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The script will ask you which DNS resolvers you want to use when connected to the VPN.
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@ -90,6 +96,7 @@ Here are the possibilities :
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- [DNS.WATCH DNS Servers](https://dns.watch/index), recommended if you're in western europe (Germany)
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- [OpenDNS](https://en.wikipedia.org/wiki/OpenDNS), not recommened but fast wordlwide (Anycast servers)
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- [Google Public DNS](https://en.wikipedia.org/wiki/Google_Public_DNS), not recommended, but fast worldwide (Anycast servers)
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- [Yandex Basic DNS](https://dns.yandex.com/), not recommended, but fast in Russia
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- Soon : local resolver :D
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Any other fast, trustable and neutral servers proposition is welcome.
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@ -177,7 +184,7 @@ To quote the [OpenVPN documentation](https://community.openvpn.net/openvpn/wiki/
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>Of the currently supported ciphers, OpenVPN currently recommends using AES-256-CBC or AES-128-CBC. OpenVPN 2.4 and newer will also support GCM. For 2.4+, we recommend using AES-256-GCM or AES-128-GCM.
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Of course I will update the script to add AES-GCM mode (as weel as ECDH and ECDSA) as soon as OpenVPN 2.4 is released.
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Of course I will update the script to add AES-GCM mode (as well as ECDH and ECDSA) as soon as OpenVPN 2.4 is released.
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For now, these cipher are available in the setup :
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@ -24,14 +24,14 @@ if [[ -e /etc/debian_version ]]; then
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# Getting the version number, to verify that a recent version of OpenVPN is available
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VERSION_ID=$(cat /etc/os-release | grep "VERSION_ID")
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RCLOCAL='/etc/rc.local'
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if [[ "$VERSION_ID" != 'VERSION_ID="7"' ]] && [[ "$VERSION_ID" != 'VERSION_ID="8"' ]] && [[ "$VERSION_ID" != 'VERSION_ID="12.04"' ]] && [[ "$VERSION_ID" != 'VERSION_ID="14.04"' ]] && [[ "$VERSION_ID" != 'VERSION_ID="16.04"' ]] && [[ "$VERSION_ID" != 'VERSION_ID="16.10"' ]]; then
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SYSCTL='/etc/sysctl.conf'
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if [[ "$VERSION_ID" != 'VERSION_ID="8"' ]] && [[ "$VERSION_ID" != 'VERSION_ID="9"' ]] && [[ "$VERSION_ID" != 'VERSION_ID="14.04"' ]] && [[ "$VERSION_ID" != 'VERSION_ID="16.04"' ]] && [[ "$VERSION_ID" != 'VERSION_ID="17.04"' ]]; then
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echo "Your version of Debian/Ubuntu is not supported."
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echo "I can't install OpenVPN 2.4 on your system."
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echo "I can't install a recent version of OpenVPN on your system."
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echo ""
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echo "However, if you're using Debian unstable/testing, or Ubuntu beta,"
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echo "then you can continue, this version of OpenVPN is available on these."
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echo "Keep in mind these releases are not supported, though."
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echo "then you can continue, a recent version of OpenVPN is available on these."
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echo "Keep in mind they are not supported, though."
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while [[ $CONTINUE != "y" && $CONTINUE != "n" ]]; do
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read -p "Continue ? [y/n]: " -e CONTINUE
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done
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@ -43,29 +43,50 @@ if [[ -e /etc/debian_version ]]; then
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elif [[ -e /etc/centos-release || -e /etc/redhat-release ]]; then
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OS=centos
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RCLOCAL='/etc/rc.d/rc.local'
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SYSCTL='/etc/sysctl.conf'
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# Needed for CentOS 7
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chmod +x /etc/rc.d/rc.local
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elif [[ -e /etc/arch-release ]]; then
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OS=arch
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RCLOCAL='/etc/rc.local'
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SYSCTL='/etc/sysctl.d/openvpn.conf'
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else
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echo "Looks like you aren't running this installer on a Debian, Ubuntu or CentOS system"
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echo "Looks like you aren't running this installer on a Debian, Ubuntu, CentOS or ArchLinux system"
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exit 4
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fi
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newclient () {
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# Where to write the custom client.ovpn?
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if [ -e /home/$1 ]; then # if $1 is a user name
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homeDir="/home/$1"
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elif [ ${SUDO_USER} ]; then # if not, use SUDO_USER
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homeDir="/home/${SUDO_USER}"
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else # if not SUDO_USER, use /root
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homeDir="/root"
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fi
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# Generates the custom client.ovpn
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# We put everything in the client file
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cp /etc/openvpn/client-template.txt ~/$1.ovpn
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echo "<ca>" >> ~/$1.ovpn
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cat /etc/openvpn/easy-rsa/pki/ca.crt >> ~/$1.ovpn
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echo "</ca>" >> ~/$1.ovpn
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echo "<cert>" >> ~/$1.ovpn
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cat /etc/openvpn/easy-rsa/pki/issued/$1.crt >> ~/$1.ovpn
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echo "</cert>" >> ~/$1.ovpn
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echo "<key>" >> ~/$1.ovpn
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cat /etc/openvpn/easy-rsa/pki/private/$1.key >> ~/$1.ovpn
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echo "</key>" >> ~/$1.ovpn
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echo "<tls-crypt>" >> ~/$1.ovpn
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cat /etc/openvpn/tls-crypt.key >> ~/$1.ovpn
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echo "</tls-crypt>" >> ~/$1.ovpn
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cp /etc/openvpn/client-template.txt $homeDir/$1.ovpn
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echo "<ca>" >> $homeDir/$1.ovpn
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cat /etc/openvpn/easy-rsa/pki/ca.crt >> $homeDir/$1.ovpn
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echo "</ca>" >> $homeDir/$1.ovpn
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echo "<cert>" >> $homeDir/$1.ovpn
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cat /etc/openvpn/easy-rsa/pki/issued/$1.crt >> $homeDir/$1.ovpn
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echo "</cert>" >> $homeDir/$1.ovpn
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echo "<key>" >> $homeDir/$1.ovpn
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cat /etc/openvpn/easy-rsa/pki/private/$1.key >> $homeDir/$1.ovpn
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echo "</key>" >> $homeDir/$1.ovpn
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#We verify if we used tls-crypt or tls-auth during the installation
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TLS_SIG=$(cat /etc/openvpn/TLS_SIG)
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if [[ $TLS_SIG == "1" ]]; then
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echo "<tls-crypt>" >> ~/$1.ovpn
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cat /etc/openvpn/tls-crypt.key >> ~/$1.ovpn
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echo "</tls-crypt>" >> ~/$1.ovpn
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elif [[ $TLS_SIG == "2" ]]; then
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echo "key-direction 1" >> $homeDir/$1.ovpn
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echo "<tls-auth>" >> $homeDir/$1.ovpn
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cat /etc/openvpn/tls-auth.key >> $homeDir/$1.ovpn
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echo "</tls-auth>" >> $homeDir/$1.ovpn
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fi
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}
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# Try to get our IP from the system and fallback to the Internet.
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@ -75,6 +96,8 @@ IP=$(ip addr | grep 'inet' | grep -v inet6 | grep -vE '127\.[0-9]{1,3}\.[0-9]{1,
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if [[ "$IP" = "" ]]; then
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IP=$(wget -qO- ipv4.icanhazip.com)
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fi
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# Get Internet network interface with default route
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NIC=$(ip -4 route ls | grep default | grep -Po '(?<=dev )(\S+)')
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if [[ -e /etc/openvpn/server.conf ]]; then
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while :
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@ -101,7 +124,7 @@ if [[ -e /etc/openvpn/server.conf ]]; then
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# Generates the custom client.ovpn
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newclient "$CLIENT"
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echo ""
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echo "Client $CLIENT added, certs available at ~/$CLIENT.ovpn"
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echo "Client $CLIENT added, certs available at $homeDir/$CLIENT.ovpn"
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exit
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;;
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2)
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@ -128,6 +151,7 @@ if [[ -e /etc/openvpn/server.conf ]]; then
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rm -rf pki/issued/$CLIENT.crt
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rm -rf /etc/openvpn/crl.pem
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cp /etc/openvpn/easy-rsa/pki/crl.pem /etc/openvpn/crl.pem
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chmod 644 /etc/openvpn/crl.pem
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echo ""
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echo "Certificate for client $CLIENT revoked"
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echo "Exiting..."
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@ -159,7 +183,9 @@ if [[ -e /etc/openvpn/server.conf ]]; then
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fi
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fi
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if [[ "$OS" = 'debian' ]]; then
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apt-get remove --purge -y openvpn openvpn-blacklist
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apt-get autoremove --purge -y openvpn
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elif [[ "$OS" = 'arch' ]]; then
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pacman -R openvpn --noconfirm
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else
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yum remove openvpn -y
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fi
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@ -193,21 +219,260 @@ else
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read -p "Port: " -e -i 1194 PORT
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echo ""
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echo "What protocol do you want for OpenVPN?"
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echo "Unless UDP is blocked, you should not use TCP (slower)"
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while [[ $PROTOCOL != "UDP" && $PROTOCOL != "TCP" ]]; do
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read -p "Protocol [UDP/TCP]: " -e -i UDP PROTOCOL
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echo "Unless UDP is blocked, you should not use TCP (unnecessarily slower)"
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echo " 1) UDP (recommended)"
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echo " 2) TCP"
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while [[ $PROTOCOL != "1" && $PROTOCOL != "2" ]]; do
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read -p "Protocol [1-2]: " -e -i 1 PROTOCOL
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done
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echo ""
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echo "What DNS do you want to use with the VPN?"
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echo " 1) Current system resolvers (/etc/resolv.conf)"
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echo " 1) Current system resolvers (in /etc/resolv.conf)"
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echo " 2) FDN (France)"
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echo " 3) DNS.WATCH (Germany)"
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echo " 4) OpenDNS (Anycast: worldwide)"
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echo " 5) Google (Anycast: worldwide)"
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while [[ $DNS != "1" && $DNS != "2" && $DNS != "3" && $DNS != "4" && $DNS != "5" ]]; do
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read -p "DNS [1-5]: " -e -i 2 DNS
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echo " 6) Yandex Basic (Russia)"
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while [[ $DNS != "1" && $DNS != "2" && $DNS != "3" && $DNS != "4" && $DNS != "5" && $DNS != "6" ]]; do
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read -p "DNS [1-6]: " -e -i 1 DNS
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done
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echo ""
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echo "See https://github.com/Angristan/OpenVPN-install#encryption to learn more about "
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echo "the encryption in OpenVPN and the choices proposed in this script."
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echo "Please note that all the choices proposed are secure enough considering today's strandards, unlike some default OpenVPN options"
|
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echo "You can just type "enter" if you don't know what to choose."
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echo "Note that if you want to use an OpenVPN 2.3 client, You'll have to choose OpenVPN 2.3-compatible options."
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echo "All OpenVPN 2.3-compatible choices are specified for each following option."
|
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echo ""
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||||
echo "Choose which cipher you want to use for the data channel:"
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echo " 1) AES-128-GCM (recommended)"
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||||
echo " 2) AES-192-GCM"
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echo " 3) AES-256-GCM"
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echo "Only use AES-CBC for OpenVPN 2.3 compatibilty"
|
||||
echo " 4) AES-128-CBC"
|
||||
echo " 5) AES-192-CBC"
|
||||
echo " 6) AES-256-CBC"
|
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while [[ $CIPHER != "1" && $CIPHER != "2" && $CIPHER != "3" && $CIPHER != "4" && $CIPHER != "5" && $CIPHER != "6" ]]; do
|
||||
read -p "Data channel cipher [1-6]: " -e -i 1 CIPHER
|
||||
done
|
||||
case $CIPHER in
|
||||
1)
|
||||
CIPHER="cipher AES-128-GCM"
|
||||
;;
|
||||
2)
|
||||
CIPHER="cipher AES-192-GCM"
|
||||
;;
|
||||
3)
|
||||
CIPHER="cipher AES-256-GCM"
|
||||
;;
|
||||
4)
|
||||
CIPHER="cipher AES-128-CBC"
|
||||
;;
|
||||
5)
|
||||
CIPHER="cipher AES-192-CBC"
|
||||
;;
|
||||
6)
|
||||
CIPHER="cipher AES-256-CBC"
|
||||
;;
|
||||
esac
|
||||
echo ""
|
||||
echo "Choose what kind of certificate you want to use:"
|
||||
echo "Elleptic Curves keys (EC) are recommended, they're faster, lighter and more secure."
|
||||
echo "Use RSA for OpenVPN 2.3 compatibilty"
|
||||
echo " 1) ECDSA (recommended)"
|
||||
echo " 2) RSA"
|
||||
while [[ $CERT_TYPE != "1" && $CERT_TYPE != "2" ]]; do
|
||||
read -p "Certificate type [1-2]: " -e -i 1 CERT_TYPE
|
||||
done
|
||||
case $CERT_TYPE in
|
||||
1)
|
||||
echo ""
|
||||
echo "Choose which curve you want to use for the EC key:"
|
||||
echo " 1) secp256r1"
|
||||
echo " 2) secp384r1 (recommended)"
|
||||
echo " 3) secp521r1"
|
||||
while [[ $CERT_CURVE != "1" && $CERT_CURVE != "2" && $CERT_CURVE != "3" ]]; do
|
||||
read -p "Curve [1-3]: " -e -i 2 CERT_CURVE
|
||||
done
|
||||
case $CERT_CURVE in
|
||||
1)
|
||||
CERT_CURVE="secp256r1"
|
||||
;;
|
||||
2)
|
||||
CERT_CURVE="secp384r1"
|
||||
;;
|
||||
3)
|
||||
CERT_CURVE="secp521r1"
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
2)
|
||||
echo ""
|
||||
echo "Choose which RSA key size you want to use:"
|
||||
echo " 1) 2048 bits"
|
||||
echo " 2) 3072 bits (recommended)"
|
||||
echo " 3) 4096 bits"
|
||||
while [[ $RSA_SIZE != "1" && $RSA_SIZE != "2" && $RSA_SIZE != "3" ]]; do
|
||||
read -p "DH key size [1-3]: " -e -i 2 RSA_SIZE
|
||||
done
|
||||
case $RSA_SIZE in
|
||||
1)
|
||||
RSA_SIZE="2048"
|
||||
;;
|
||||
2)
|
||||
RSA_SIZE="3072"
|
||||
;;
|
||||
3)
|
||||
RSA_SIZE="4096"
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
esac
|
||||
echo ""
|
||||
echo "Choose which hash algorithm you want to use for the certificate:"
|
||||
echo " 1) SHA-256"
|
||||
echo " 2) SHA-384 (recommended)"
|
||||
echo " 3) SHA-512"
|
||||
while [[ $CERT_HASH != "1" && $CERT_HASH != "2" && $CERT_HASH != "3" ]]; do
|
||||
read -p "Hash algorithm [1-3]: " -e -i 2 CERT_HASH
|
||||
done
|
||||
case $CERT_HASH in
|
||||
1)
|
||||
CERT_HASH="sha256"
|
||||
;;
|
||||
2)
|
||||
CERT_HASH="sha384"
|
||||
;;
|
||||
3)
|
||||
CERT_HASH="sha512"
|
||||
;;
|
||||
esac
|
||||
echo ""
|
||||
echo "Choose what kind of Diffie-Hellman key you want to use."
|
||||
echo "Elleptic Curves (EC) are recommended, they're faster, lighter and more secure."
|
||||
echo "Use DH for OpenVPN 2.3 compatibilty"
|
||||
echo " 1) ECDH (recommended)"
|
||||
echo " 2) DH"
|
||||
while [[ $DH_TYPE != "1" && $DH_TYPE != "2" ]]; do
|
||||
read -p "DH key type [1-2]: " -e -i 1 DH_TYPE
|
||||
done
|
||||
case $DH_TYPE in
|
||||
1)
|
||||
echo ""
|
||||
echo "Choose which curve you want to use for the ECDH key"
|
||||
echo " 1) secp256r1"
|
||||
echo " 2) secp384r1 (recommended)"
|
||||
echo " 3) secp521r1"
|
||||
while [[ $DH_CURVE != "1" && $DH_CURVE != "2" && $DH_CURVE != "3" ]]; do
|
||||
read -p "Curve [1-3]: " -e -i 2 DH_CURVE
|
||||
done
|
||||
case $DH_CURVE in
|
||||
1)
|
||||
DH_CURVE="secp256r1"
|
||||
;;
|
||||
2)
|
||||
DH_CURVE="secp384r1"
|
||||
;;
|
||||
3)
|
||||
DH_CURVE="secp521r1"
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
2)
|
||||
echo""
|
||||
echo "Choose which DH key size you want to use"
|
||||
echo " 1) 2048 bits"
|
||||
echo " 2) 3072 bits (recommended)"
|
||||
echo " 3) 4096 bits"
|
||||
while [[ $DH_SIZE != "1" && $DH_SIZE != "2" && $DH_SIZE != "3" ]]; do
|
||||
read -p "DH key size [1-3]: " -e -i 2 DH_SIZE
|
||||
done
|
||||
case $DH_SIZE in
|
||||
1)
|
||||
DH_SIZE="2048"
|
||||
;;
|
||||
2)
|
||||
DH_SIZE="3072"
|
||||
;;
|
||||
3)
|
||||
DH_SIZE="4096"
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
esac
|
||||
echo ""
|
||||
echo "Choose which cipher you want to use for the control channel:"
|
||||
if [[ "$CERT_TYPE" = '1' ]]; then
|
||||
echo " 1) ECDHE-ECDSA-AES-256-GCM-SHA384 (recommended)"
|
||||
echo " 2) ECDHE-ECDSA-AES-128-GCM-SHA256"
|
||||
while [[ $CC_ENC != "1" && $CC_ENC != "2" ]]; do
|
||||
read -p "Control channel cipher [1-2]: " -e -i 1 CC_ENC
|
||||
done
|
||||
case $CC_ENC in
|
||||
1)
|
||||
CC_ENC="TLS-ECDHE-ECDSA-WITH-AES-256-GCM-SHA384"
|
||||
;;
|
||||
2)
|
||||
CC_ENC="TLS-ECDHE-ECDSA-WITH-AES-128-GCM-SHA256"
|
||||
;;
|
||||
esac
|
||||
elif [[ "$CERT_TYPE" = '2' ]]; then
|
||||
echo " 1) ECDHE-RSA-AES-256-GCM-SHA384 (recommended)"
|
||||
echo " 2) ECDHE-RSA-AES-128-GCM-SHA256"
|
||||
echo " 3) DHE-RSA-AES-128-GCM-SHA256"
|
||||
while [[ $CC_ENC != "1" && $CC_ENC != "2" && $CC_ENC != "3" ]]; do
|
||||
read -p "Control channel cipher [1-3]: " -e -i 1 CC_ENC
|
||||
done
|
||||
case $CC_ENC in
|
||||
1)
|
||||
CC_ENC="TLS-ECDHE-RSA-WITH-AES-256-GCM-SHA384"
|
||||
;;
|
||||
2)
|
||||
CC_ENC="TLS-ECDHE-RSA-WITH-AES-128-GCM-SHA256"
|
||||
;;
|
||||
3)
|
||||
CC_ENC="TLS-DHE-RSA-WITH-AES-128-GCM-SHA256"
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
echo ""
|
||||
echo "Do you want to use tls-crypt or tls-auth?"
|
||||
echo "They both encrypt and authenticate all control channel packets with a key."
|
||||
echo "tls-crypt is more advanced and secure than tls-auth, but it's an OpenVPN 2.4 feature."
|
||||
echo " 1) tls-crypt (recommended)"
|
||||
echo " 2) tls-auth (use only for OpenVPN 2.3 client compatibility)"
|
||||
while [[ $TLS_SIG != "1" && $TLS_SIG != "2" ]]; do
|
||||
read -p "Crontrol channel additional security layer [1-2]: " -e -i 1 TLS_SIG
|
||||
done
|
||||
echo""
|
||||
if [[ $CIPHER = "cipher AES-256-GCM" ]] || [[ $CIPHER = "cipher AES-192-GCM" ]] || [[ $CIPHER = "cipher AES-128-GCM" ]]; then
|
||||
echo "Choose which message digest algorithm you want to use for the tls-auth/tls-crypt control channel packets:"
|
||||
elif [[ $CIPHER = "cipher AES-256-CBC" ]] || [[ $CIPHER = "cipher AES-192-CBC" ]] || [[ $CIPHER = "cipher AES-128-CBC" ]]; then
|
||||
echo "Choose which message digest algorithm you want to use for the data channel packets"
|
||||
echo "and the tls-auth/tls-crypt control channel packets:"
|
||||
fi
|
||||
echo " 1) SHA-224"
|
||||
echo " 2) SHA-256"
|
||||
echo " 3) SHA-384 (recommended)"
|
||||
echo " 4) SHA-512"
|
||||
while [[ $HMAC_AUTH != "1" && $HMAC_AUTH != "2" && $HMAC_AUTH != "3" && $HMAC_AUTH != "4" ]]; do
|
||||
read -p "HMAC authentication algorithm [1-3]: " -e -i 2 HMAC_AUTH
|
||||
done
|
||||
case $HMAC_AUTH in
|
||||
1)
|
||||
HMAC_AUTH="SHA224"
|
||||
;;
|
||||
2)
|
||||
HMAC_AUTH="SHA256"
|
||||
;;
|
||||
3)
|
||||
HMAC_AUTH="SHA384"
|
||||
;;
|
||||
4)
|
||||
HMAC_AUTH="SHA512"
|
||||
;;
|
||||
esac
|
||||
echo ""
|
||||
echo "Finally, tell me a name for the client certificate and configuration"
|
||||
while [[ $CLIENT = "" ]]; do
|
||||
echo "Please, use one word only, no special characters"
|
||||
@ -220,44 +485,76 @@ else
|
||||
if [[ "$OS" = 'debian' ]]; then
|
||||
apt-get install ca-certificates -y
|
||||
# We add the OpenVPN repo to get the latest version.
|
||||
# Debian 7
|
||||
if [[ "$VERSION_ID" = 'VERSION_ID="7"' ]]; then
|
||||
echo "deb http://build.openvpn.net/debian/openvpn/release/2.4 wheezy main" > /etc/apt/sources.list.d/openvpn.list
|
||||
wget -O - https://swupdate.openvpn.net/repos/repo-public.gpg | apt-key add -
|
||||
apt-get update
|
||||
fi
|
||||
# Debian 8
|
||||
if [[ "$VERSION_ID" = 'VERSION_ID="8"' ]]; then
|
||||
echo "deb http://build.openvpn.net/debian/openvpn/release/2.4 jessie main" > /etc/apt/sources.list.d/openvpn.list
|
||||
echo "deb http://build.openvpn.net/debian/openvpn/stable jessie main" > /etc/apt/sources.list.d/openvpn.list
|
||||
wget -O - https://swupdate.openvpn.net/repos/repo-public.gpg | apt-key add -
|
||||
apt update
|
||||
fi
|
||||
# Ubuntu 12.04
|
||||
if [[ "$VERSION_ID" = 'VERSION_ID="12.04"' ]]; then
|
||||
echo "deb http://build.openvpn.net/debian/openvpn/release/2.4 precise main" > /etc/apt/sources.list.d/openvpn.list
|
||||
wget -O - https://swupdate.openvpn.net/repos/repo-public.gpg | apt-key add -
|
||||
apt-get update
|
||||
fi
|
||||
# Ubuntu 14.04
|
||||
if [[ "$VERSION_ID" = 'VERSION_ID="14.04"' ]]; then
|
||||
echo "deb http://build.openvpn.net/debian/openvpn/release/2.4 trusty main" > /etc/apt/sources.list.d/openvpn.list
|
||||
elif [[ "$VERSION_ID" = 'VERSION_ID="14.04"' ]]; then
|
||||
echo "deb http://build.openvpn.net/debian/openvpn/stable trusty main" > /etc/apt/sources.list.d/openvpn.list
|
||||
wget -O - https://swupdate.openvpn.net/repos/repo-public.gpg | apt-key add -
|
||||
apt-get update
|
||||
fi
|
||||
# Ubuntu 16.04
|
||||
if [[ "$VERSION_ID" = 'VERSION_ID="16.04"' ]]; then
|
||||
echo "deb http://build.openvpn.net/debian/openvpn/release/2.4 xenial main" > /etc/apt/sources.list.d/openvpn.list
|
||||
elif [[ "$VERSION_ID" = 'VERSION_ID="16.04"' ]]; then
|
||||
echo "deb http://build.openvpn.net/debian/openvpn/stable xenial main" > /etc/apt/sources.list.d/openvpn.list
|
||||
wget -O - https://swupdate.openvpn.net/repos/repo-public.gpg | apt-key add -
|
||||
apt-get update
|
||||
fi
|
||||
# Then we install OpenVPN
|
||||
# Ubuntu >= 17.04 and Debian > 9 have OpenVPN 2.4 without the need of a third party repository.
|
||||
# The we install OpenVPN
|
||||
apt-get update
|
||||
apt-get install openvpn iptables openssl wget ca-certificates curl -y
|
||||
else
|
||||
# Else, the distro is CentOS
|
||||
elif [[ "$OS" = 'centos' ]]; then
|
||||
yum install epel-release -y
|
||||
yum install openvpn iptables openssl wget ca-certificates curl -y
|
||||
else
|
||||
# Else, the distro is ArchLinux
|
||||
echo ""
|
||||
echo ""
|
||||
echo "As you're using ArchLinux, I need to update the packages on your system to install those I need."
|
||||
echo "Not doing that could cause problems between dependencies, or missing files in repositories."
|
||||
echo ""
|
||||
echo "Continuing will update your installed packages and install needed ones."
|
||||
while [[ $CONTINUE != "y" && $CONTINUE != "n" ]]; do
|
||||
read -p "Continue ? [y/n]: " -e -i y CONTINUE
|
||||
done
|
||||
if [[ "$CONTINUE" = "n" ]]; then
|
||||
echo "Ok, bye !"
|
||||
exit 4
|
||||
fi
|
||||
|
||||
if [[ "$OS" = 'arch' ]]; then
|
||||
# Install rc.local
|
||||
echo "[Unit]
|
||||
Description=/etc/rc.local compatibility
|
||||
|
||||
[Service]
|
||||
Type=oneshot
|
||||
ExecStart=/etc/rc.local
|
||||
RemainAfterExit=yes
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target" > /etc/systemd/system/rc-local.service
|
||||
chmod +x /etc/rc.local
|
||||
systemctl enable rc-local.service
|
||||
if ! grep '#!' $RCLOCAL; then
|
||||
echo "#!/bin/bash" > $RCLOCAL
|
||||
fi
|
||||
fi
|
||||
|
||||
# Install dependencies
|
||||
pacman -Syu openvpn iptables openssl wget ca-certificates curl --needed --noconfirm
|
||||
if [[ "$OS" = 'arch' ]]; then
|
||||
touch /etc/iptables/iptables.rules # iptables won't start if this file does not exist
|
||||
systemctl enable iptables
|
||||
systemctl start iptables
|
||||
fi
|
||||
fi
|
||||
|
||||
|
||||
#To remember if we use tls-crypt or tls-auth when generating a new client conf
|
||||
echo $TLS_SIG > /etc/openvpn/TLS_SIG
|
||||
|
||||
# Find out if the machine uses nogroup or nobody for the permissionless group
|
||||
if grep -qs "^nogroup:" /etc/group; then
|
||||
NOGROUP=nogroup
|
||||
@ -270,34 +567,49 @@ else
|
||||
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/
|
||||
wget -O ~/EasyRSA-3.0.3.tgz https://github.com/OpenVPN/easy-rsa/releases/download/v3.0.3/EasyRSA-3.0.3.tgz
|
||||
tar xzf ~/EasyRSA-3.0.3.tgz -C ~/
|
||||
mv ~/EasyRSA-3.0.3/ /etc/openvpn/
|
||||
mv /etc/openvpn/EasyRSA-3.0.3/ /etc/openvpn/easy-rsa/
|
||||
chown -R root:root /etc/openvpn/easy-rsa/
|
||||
rm -rf ~/EasyRSA-3.0.1.tgz
|
||||
rm -rf ~/EasyRSA-3.0.3.tgz
|
||||
cd /etc/openvpn/easy-rsa/
|
||||
echo 'set_var EASYRSA_ALGO ec
|
||||
set_var EASYRSA_CURVE sect571r1
|
||||
set_var EASYRSA_DIGEST "sha512"' > vars
|
||||
if [[ $CERT_TYPE == "1" ]]; then
|
||||
echo "set_var EASYRSA_ALGO ec
|
||||
set_var EASYRSA_CURVE $CERT_CURVE" > vars
|
||||
elif [[ $CERT_TYPE == "2" ]]; then
|
||||
echo "set_var EASYRSA_KEY_SIZE $RSA_SIZE" > vars
|
||||
fi
|
||||
echo 'set_var EASYRSA_DIGEST "'$CERT_HASH'"' >> vars
|
||||
# Create the PKI, set up the CA, the DH params and the server + client certificates
|
||||
./easyrsa init-pki
|
||||
./easyrsa --batch build-ca nopass
|
||||
if [[ $DH_TYPE == "2" ]]; then
|
||||
openssl dhparam -out dh.pem $DH_SIZE
|
||||
fi
|
||||
./easyrsa build-server-full server nopass
|
||||
./easyrsa build-client-full $CLIENT nopass
|
||||
./easyrsa gen-crl
|
||||
# Generate tls-crypt key
|
||||
openvpn --genkey --secret /etc/openvpn/tls-crypt.key
|
||||
if [[ $TLS_SIG == "1" ]]; then
|
||||
# Generate tls-crypt key
|
||||
openvpn --genkey --secret /etc/openvpn/tls-crypt.key
|
||||
elif [[ $TLS_SIG == "2" ]]; then
|
||||
# Generate tls-auth key
|
||||
openvpn --genkey --secret /etc/openvpn/tls-auth.key
|
||||
fi
|
||||
# Move all the generated files
|
||||
cp pki/ca.crt pki/private/ca.key pki/issued/server.crt pki/private/server.key /etc/openvpn/easy-rsa/pki/crl.pem /etc/openvpn
|
||||
if [[ $DH_TYPE == "2" ]]; then
|
||||
cp dh.pem /etc/openvpn
|
||||
fi
|
||||
# Make cert revocation list readable for non-root
|
||||
chmod 644 /etc/openvpn/crl.pem
|
||||
|
||||
|
||||
# Generate server.conf
|
||||
echo "port $PORT" > /etc/openvpn/server.conf
|
||||
if [[ "$PROTOCOL" = 'UDP' ]]; then
|
||||
if [[ "$PROTOCOL" = '1' ]]; then
|
||||
echo "proto udp" >> /etc/openvpn/server.conf
|
||||
elif [[ "$PROTOCOL" = 'TCP' ]]; then
|
||||
elif [[ "$PROTOCOL" = '2' ]]; then
|
||||
echo "proto tcp" >> /etc/openvpn/server.conf
|
||||
fi
|
||||
echo "dev tun
|
||||
@ -333,46 +645,65 @@ ifconfig-pool-persist ipp.txt" >> /etc/openvpn/server.conf
|
||||
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) #Yandex Basic
|
||||
echo 'push "dhcp-option DNS 77.88.8.8"' >> /etc/openvpn/server.conf
|
||||
echo 'push "dhcp-option DNS 77.88.8.1"' >> /etc/openvpn/server.conf
|
||||
;;
|
||||
esac
|
||||
echo 'push "redirect-gateway def1 bypass-dhcp" '>> /etc/openvpn/server.conf
|
||||
echo "crl-verify crl.pem
|
||||
ca ca.crt
|
||||
cert server.crt
|
||||
key server.key
|
||||
tls-crypt tls-crypt.key 0
|
||||
dh none
|
||||
ecdh-curve sect571r1
|
||||
auth SHA512
|
||||
cipher AES-256-GCM
|
||||
key server.key" >> /etc/openvpn/server.conf
|
||||
if [[ $TLS_SIG == "1" ]]; then
|
||||
echo "tls-crypt tls-crypt.key 0" >> /etc/openvpn/server.conf
|
||||
elif [[ $TLS_SIG == "2" ]]; then
|
||||
echo "tls-auth tls-auth.key 0" >> /etc/openvpn/server.conf
|
||||
fi
|
||||
if [[ $DH_TYPE == "1" ]]; then
|
||||
echo "dh none
|
||||
ecdh-curve $DH_CURVE" >> /etc/openvpn/server.conf
|
||||
elif [[ $DH_TYPE == "2" ]]; then
|
||||
echo "dh dh.pem" >> /etc/openvpn/server.conf
|
||||
fi
|
||||
echo "auth $HMAC_AUTH
|
||||
$CIPHER
|
||||
ncp-disable
|
||||
tls-server
|
||||
tls-version-min 1.2
|
||||
tls-cipher TLS-ECDHE-ECDSA-WITH-AES-256-GCM-SHA384
|
||||
tls-cipher $CC_ENC
|
||||
status openvpn.log
|
||||
verb 3" >> /etc/openvpn/server.conf
|
||||
|
||||
# Create the sysctl configuration file if needed (mainly for Arch Linux)
|
||||
if [[ ! -e /etc/sysctl.conf ]]; then
|
||||
touch /etc/sysctl.conf
|
||||
if [[ ! -e $SYSCTL ]]; then
|
||||
touch $SYSCTL
|
||||
fi
|
||||
|
||||
# Enable net.ipv4.ip_forward for the system
|
||||
sed -i '/\<net.ipv4.ip_forward\>/c\net.ipv4.ip_forward=1' /etc/sysctl.conf
|
||||
if ! grep -q "\<net.ipv4.ip_forward\>" /etc/sysctl.conf; then
|
||||
echo 'net.ipv4.ip_forward=1' >> /etc/sysctl.conf
|
||||
sed -i '/\<net.ipv4.ip_forward\>/c\net.ipv4.ip_forward=1' $SYSCTL
|
||||
if ! grep -q "\<net.ipv4.ip_forward\>" $SYSCTL; then
|
||||
echo 'net.ipv4.ip_forward=1' >> $SYSCTL
|
||||
fi
|
||||
# Avoid an unneeded reboot
|
||||
echo 1 > /proc/sys/net/ipv4/ip_forward
|
||||
# Needed to use rc.local with some systemd distros
|
||||
if [[ "$OS" = 'debian' && ! -e $RCLOCAL ]]; then
|
||||
echo '#!/bin/sh -e
|
||||
exit 0' > $RCLOCAL
|
||||
fi
|
||||
chmod +x $RCLOCAL
|
||||
# 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
|
||||
iptables -t nat -A POSTROUTING -o $NIC -s 10.8.0.0/24 -j MASQUERADE
|
||||
sed -i "1 a\iptables -t nat -A POSTROUTING -o $NIC -s 10.8.0.0/24 -j MASQUERADE" $RCLOCAL
|
||||
if pgrep firewalld; then
|
||||
# We don't use --add-service=openvpn because that would only work with
|
||||
# the default port. Using both permanent and not permanent rules to
|
||||
# avoid a firewalld reload.
|
||||
if [[ "$PROTOCOL" = 'UDP' ]]; then
|
||||
if [[ "$PROTOCOL" = '1' ]]; then
|
||||
firewall-cmd --zone=public --add-port=$PORT/udp
|
||||
firewall-cmd --permanent --zone=public --add-port=$PORT/udp
|
||||
elif [[ "$PROTOCOL" = 'TCP' ]]; then
|
||||
elif [[ "$PROTOCOL" = '2' ]]; then
|
||||
firewall-cmd --zone=public --add-port=$PORT/tcp
|
||||
firewall-cmd --permanent --zone=public --add-port=$PORT/tcp
|
||||
fi
|
||||
@ -383,16 +714,16 @@ verb 3" >> /etc/openvpn/server.conf
|
||||
# If iptables has at least one REJECT rule, we asume this is needed.
|
||||
# Not the best approach but I can't think of other and this shouldn't
|
||||
# cause problems.
|
||||
if [[ "$PROTOCOL" = 'UDP' ]]; then
|
||||
if [[ "$PROTOCOL" = '1' ]]; then
|
||||
iptables -I INPUT -p udp --dport $PORT -j ACCEPT
|
||||
elif [[ "$PROTOCOL" = 'TCP' ]]; then
|
||||
elif [[ "$PROTOCOL" = '2' ]]; then
|
||||
iptables -I INPUT -p tcp --dport $PORT -j ACCEPT
|
||||
fi
|
||||
iptables -I FORWARD -s 10.8.0.0/24 -j ACCEPT
|
||||
iptables -I FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
|
||||
if [[ "$PROTOCOL" = 'UDP' ]]; then
|
||||
if [[ "$PROTOCOL" = '1' ]]; then
|
||||
sed -i "1 a\iptables -I INPUT -p udp --dport $PORT -j ACCEPT" $RCLOCAL
|
||||
elif [[ "$PROTOCOL" = 'TCP' ]]; then
|
||||
elif [[ "$PROTOCOL" = '2' ]]; then
|
||||
sed -i "1 a\iptables -I INPUT -p tcp --dport $PORT -j ACCEPT" $RCLOCAL
|
||||
fi
|
||||
sed -i "1 a\iptables -I FORWARD -s 10.8.0.0/24 -j ACCEPT" $RCLOCAL
|
||||
@ -406,9 +737,9 @@ verb 3" >> /etc/openvpn/server.conf
|
||||
if ! hash semanage 2>/dev/null; then
|
||||
yum install policycoreutils-python -y
|
||||
fi
|
||||
if [[ "$PROTOCOL" = 'UDP' ]]; then
|
||||
if [[ "$PROTOCOL" = '1' ]]; then
|
||||
semanage port -a -t openvpn_port_t -p udp $PORT
|
||||
elif [[ "$PROTOCOL" = 'TCP' ]]; then
|
||||
elif [[ "$PROTOCOL" = '2' ]]; then
|
||||
semanage port -a -t openvpn_port_t -p tcp $PORT
|
||||
fi
|
||||
fi
|
||||
@ -418,14 +749,33 @@ verb 3" >> /etc/openvpn/server.conf
|
||||
if [[ "$OS" = 'debian' ]]; then
|
||||
# Little hack to check for systemd
|
||||
if pgrep systemd-journal; then
|
||||
systemctl restart openvpn@server.service
|
||||
if [[ "$VERSION_ID" = 'VERSION_ID="9"' ]]; then
|
||||
#Workaround to fix OpenVPN service on Debian 9 OpenVZ
|
||||
sed -i 's|LimitNPROC|#LimitNPROC|' /lib/systemd/system/openvpn-server\@.service
|
||||
sed -i 's|/etc/openvpn/server|/etc/openvpn|' /lib/systemd/system/openvpn-server\@.service
|
||||
sed -i 's|%i.conf|server.conf|' /lib/systemd/system/openvpn-server\@.service
|
||||
systemctl daemon-reload
|
||||
systemctl restart openvpn-server@openvpn.service
|
||||
systemctl enable openvpn-server@openvpn.service
|
||||
else
|
||||
systemctl restart openvpn@server.service
|
||||
fi
|
||||
else
|
||||
/etc/init.d/openvpn restart
|
||||
fi
|
||||
else
|
||||
if pgrep systemd-journal; then
|
||||
systemctl restart openvpn@server.service
|
||||
systemctl enable openvpn@server.service
|
||||
if [[ "$OS" = 'arch' ]]; then
|
||||
#Workaround to avoid rewriting the entire script for Arch
|
||||
sed -i 's|/etc/openvpn/server|/etc/openvpn|' /usr/lib/systemd/system/openvpn-server@.service
|
||||
sed -i 's|%i.conf|server.conf|' /usr/lib/systemd/system/openvpn-server@.service
|
||||
systemctl daemon-reload
|
||||
systemctl restart openvpn-server@openvpn.service
|
||||
systemctl enable openvpn-server@openvpn.service
|
||||
else
|
||||
systemctl restart openvpn@server.service
|
||||
systemctl enable openvpn@server.service
|
||||
fi
|
||||
else
|
||||
service openvpn restart
|
||||
chkconfig openvpn on
|
||||
@ -447,9 +797,9 @@ verb 3" >> /etc/openvpn/server.conf
|
||||
fi
|
||||
# client-template.txt is created so we have a template to add further users later
|
||||
echo "client" > /etc/openvpn/client-template.txt
|
||||
if [[ "$PROTOCOL" = 'UDP' ]]; then
|
||||
if [[ "$PROTOCOL" = '1' ]]; then
|
||||
echo "proto udp" >> /etc/openvpn/client-template.txt
|
||||
elif [[ "$PROTOCOL" = 'TCP' ]]; then
|
||||
elif [[ "$PROTOCOL" = '2' ]]; then
|
||||
echo "proto tcp-client" >> /etc/openvpn/client-template.txt
|
||||
fi
|
||||
echo "remote $IP $PORT
|
||||
@ -459,11 +809,11 @@ nobind
|
||||
persist-key
|
||||
persist-tun
|
||||
remote-cert-tls server
|
||||
auth SHA512
|
||||
cipher AES-256-GCM
|
||||
auth $HMAC_AUTH
|
||||
$CIPHER
|
||||
tls-client
|
||||
tls-version-min 1.2
|
||||
tls-cipher TLS-ECDHE-ECDSA-WITH-AES-256-GCM-SHA384
|
||||
tls-cipher $CC_ENC
|
||||
setenv opt block-outside-dns
|
||||
verb 3" >> /etc/openvpn/client-template.txt
|
||||
|
||||
@ -472,7 +822,7 @@ verb 3" >> /etc/openvpn/client-template.txt
|
||||
echo ""
|
||||
echo "Finished!"
|
||||
echo ""
|
||||
echo "Your client config is available at ~/$CLIENT.ovpn"
|
||||
echo "Your client config is available at $homeDir/$CLIENT.ovpn"
|
||||
echo "If you want to add more clients, you simply need to run this script another time!"
|
||||
fi
|
||||
exit 0;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user