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openvpn-install.sh
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@ -3,26 +3,26 @@
# Secure OpenVPN server installer for Debian, Ubuntu, CentOS, Amazon Linux 2, Fedora and Arch Linux # Secure OpenVPN server installer for Debian, Ubuntu, CentOS, Amazon Linux 2, Fedora and Arch Linux
# https://github.com/angristan/openvpn-install # https://github.com/angristan/openvpn-install
function isRoot () { function isRoot() {
if [ "$EUID" -ne 0 ]; then if [ "$EUID" -ne 0 ]; then
return 1 return 1
fi fi
} }
function tunAvailable () { function tunAvailable() {
if [ ! -e /dev/net/tun ]; then if [ ! -e /dev/net/tun ]; then
return 1 return 1
fi fi
} }
function checkOS () { function checkOS() {
if [[ -e /etc/debian_version ]]; then if [[ -e /etc/debian_version ]]; then
OS="debian" OS="debian"
# shellcheck disable=SC1091 # shellcheck disable=SC1091
source /etc/os-release source /etc/os-release
if [[ "$ID" == "debian" || "$ID" == "raspbian" ]]; then if [[ $ID == "debian" || $ID == "raspbian" ]]; then
if [[ "$VERSION_ID" -lt 8 ]]; then if [[ $VERSION_ID -lt 8 ]]; then
echo "⚠️ Your version of Debian is not supported." echo "⚠️ Your version of Debian is not supported."
echo "" echo ""
echo "However, if you're using Debian >= 8 or unstable/testing then you can continue, at your own risk." echo "However, if you're using Debian >= 8 or unstable/testing then you can continue, at your own risk."
@ -30,11 +30,11 @@ function checkOS () {
until [[ $CONTINUE =~ (y|n) ]]; do until [[ $CONTINUE =~ (y|n) ]]; do
read -rp "Continue? [y/n]: " -e CONTINUE read -rp "Continue? [y/n]: " -e CONTINUE
done done
if [[ "$CONTINUE" == "n" ]]; then if [[ $CONTINUE == "n" ]]; then
exit 1 exit 1
fi fi
fi fi
elif [[ "$ID" == "ubuntu" ]];then elif [[ $ID == "ubuntu" ]]; then
OS="ubuntu" OS="ubuntu"
MAJOR_UBUNTU_VERSION=$(echo "$VERSION_ID" | cut -d '.' -f1) MAJOR_UBUNTU_VERSION=$(echo "$VERSION_ID" | cut -d '.' -f1)
if [[ $MAJOR_UBUNTU_VERSION -lt 16 ]]; then if [[ $MAJOR_UBUNTU_VERSION -lt 16 ]]; then
@ -45,7 +45,7 @@ function checkOS () {
until [[ $CONTINUE =~ (y|n) ]]; do until [[ $CONTINUE =~ (y|n) ]]; do
read -rp "Continue? [y/n]: " -e CONTINUE read -rp "Continue? [y/n]: " -e CONTINUE
done done
if [[ "$CONTINUE" == "n" ]]; then if [[ $CONTINUE == "n" ]]; then
exit 1 exit 1
fi fi
fi fi
@ -53,10 +53,10 @@ function checkOS () {
elif [[ -e /etc/system-release ]]; then elif [[ -e /etc/system-release ]]; then
# shellcheck disable=SC1091 # shellcheck disable=SC1091
source /etc/os-release source /etc/os-release
if [[ "$ID" == "fedora" ]]; then if [[ $ID == "fedora" ]]; then
OS="fedora" OS="fedora"
fi fi
if [[ "$ID" == "centos" ]]; then if [[ $ID == "centos" ]]; then
OS="centos" OS="centos"
if [[ ! $VERSION_ID =~ (7|8) ]]; then if [[ ! $VERSION_ID =~ (7|8) ]]; then
echo "⚠️ Your version of CentOS is not supported." echo "⚠️ Your version of CentOS is not supported."
@ -66,9 +66,9 @@ function checkOS () {
exit 1 exit 1
fi fi
fi fi
if [[ "$ID" == "amzn" ]]; then if [[ $ID == "amzn" ]]; then
OS="amzn" OS="amzn"
if [[ ! $VERSION_ID == "2" ]]; then if [[ $VERSION_ID != "2" ]]; then
echo "⚠️ Your version of Amazon Linux is not supported." echo "⚠️ Your version of Amazon Linux is not supported."
echo "" echo ""
echo "The script only support Amazon Linux 2." echo "The script only support Amazon Linux 2."
@ -84,7 +84,7 @@ function checkOS () {
fi fi
} }
function initialCheck () { function initialCheck() {
if ! isRoot; then if ! isRoot; then
echo "Sorry, you need to run this as root" echo "Sorry, you need to run this as root"
exit 1 exit 1
@ -96,11 +96,11 @@ function initialCheck () {
checkOS checkOS
} }
function installUnbound () { function installUnbound() {
# If Unbound isn't installed, install it # If Unbound isn't installed, install it
if [[ ! -e /etc/unbound/unbound.conf ]]; then if [[ ! -e /etc/unbound/unbound.conf ]]; then
if [[ "$OS" =~ (debian|ubuntu) ]]; then if [[ $OS =~ (debian|ubuntu) ]]; then
apt-get install -y unbound apt-get install -y unbound
# Configuration # Configuration
@ -109,9 +109,9 @@ access-control: 10.8.0.1/24 allow
hide-identity: yes hide-identity: yes
hide-version: yes hide-version: yes
use-caps-for-id: yes use-caps-for-id: yes
prefetch: yes' >> /etc/unbound/unbound.conf prefetch: yes' >>/etc/unbound/unbound.conf
elif [[ "$OS" =~ (centos|amzn) ]]; then elif [[ $OS =~ (centos|amzn) ]]; then
yum install -y unbound yum install -y unbound
# Configuration # Configuration
@ -121,7 +121,7 @@ prefetch: yes' >> /etc/unbound/unbound.conf
sed -i 's|# hide-version: no|hide-version: yes|' /etc/unbound/unbound.conf sed -i 's|# hide-version: no|hide-version: yes|' /etc/unbound/unbound.conf
sed -i 's|use-caps-for-id: no|use-caps-for-id: yes|' /etc/unbound/unbound.conf sed -i 's|use-caps-for-id: no|use-caps-for-id: yes|' /etc/unbound/unbound.conf
elif [[ "$OS" == "fedora" ]]; then elif [[ $OS == "fedora" ]]; then
dnf install -y unbound dnf install -y unbound
# Configuration # Configuration
@ -131,7 +131,7 @@ prefetch: yes' >> /etc/unbound/unbound.conf
sed -i 's|# hide-version: no|hide-version: yes|' /etc/unbound/unbound.conf sed -i 's|# hide-version: no|hide-version: yes|' /etc/unbound/unbound.conf
sed -i 's|# use-caps-for-id: no|use-caps-for-id: yes|' /etc/unbound/unbound.conf sed -i 's|# use-caps-for-id: no|use-caps-for-id: yes|' /etc/unbound/unbound.conf
elif [[ "$OS" == "arch" ]]; then elif [[ $OS == "arch" ]]; then
pacman -Syu --noconfirm unbound pacman -Syu --noconfirm unbound
# Get root servers list # Get root servers list
@ -157,10 +157,10 @@ prefetch: yes' >> /etc/unbound/unbound.conf
hide-identity: yes hide-identity: yes
hide-version: yes hide-version: yes
qname-minimisation: yes qname-minimisation: yes
prefetch: yes' > /etc/unbound/unbound.conf prefetch: yes' >/etc/unbound/unbound.conf
fi fi
if [[ ! "$OS" =~ (fedora|centos|amzn) ]];then if [[ ! $OS =~ (fedora|centos|amzn) ]]; then
# DNS Rebinding fix # DNS Rebinding fix
echo "private-address: 10.0.0.0/8 echo "private-address: 10.0.0.0/8
private-address: 172.16.0.0/12 private-address: 172.16.0.0/12
@ -169,10 +169,10 @@ private-address: 169.254.0.0/16
private-address: fd00::/8 private-address: fd00::/8
private-address: fe80::/10 private-address: fe80::/10
private-address: 127.0.0.0/8 private-address: 127.0.0.0/8
private-address: ::ffff:0:0/96" >> /etc/unbound/unbound.conf private-address: ::ffff:0:0/96" >>/etc/unbound/unbound.conf
fi fi
else # Unbound is already installed else # Unbound is already installed
echo 'include: /etc/unbound/openvpn.conf' >> /etc/unbound/unbound.conf echo 'include: /etc/unbound/openvpn.conf' >>/etc/unbound/unbound.conf
# Add Unbound 'server' for the OpenVPN subnet # Add Unbound 'server' for the OpenVPN subnet
echo 'server: echo 'server:
@ -189,14 +189,14 @@ private-address: 169.254.0.0/16
private-address: fd00::/8 private-address: fd00::/8
private-address: fe80::/10 private-address: fe80::/10
private-address: 127.0.0.0/8 private-address: 127.0.0.0/8
private-address: ::ffff:0:0/96' > /etc/unbound/openvpn.conf private-address: ::ffff:0:0/96' >/etc/unbound/openvpn.conf
fi fi
systemctl enable unbound systemctl enable unbound
systemctl restart unbound systemctl restart unbound
} }
function installQuestions () { function installQuestions() {
echo "Welcome to the OpenVPN installer!" echo "Welcome to the OpenVPN installer!"
echo "The git repository is available at: https://github.com/angristan/openvpn-install" echo "The git repository is available at: https://github.com/angristan/openvpn-install"
echo "" echo ""
@ -218,7 +218,7 @@ function installQuestions () {
echo "" echo ""
echo "It seems this server is behind NAT. What is its public IPv4 address or hostname?" echo "It seems this server is behind NAT. What is its public IPv4 address or hostname?"
echo "We need it for the clients to connect to the server." echo "We need it for the clients to connect to the server."
until [[ "$ENDPOINT" != "" ]]; do until [[ $ENDPOINT != "" ]]; do
read -rp "Public IPv4 address or hostname: " -e ENDPOINT read -rp "Public IPv4 address or hostname: " -e ENDPOINT
done done
fi fi
@ -227,7 +227,7 @@ function installQuestions () {
echo "Checking for IPv6 connectivity..." echo "Checking for IPv6 connectivity..."
echo "" echo ""
# "ping6" and "ping -6" availability varies depending on the distribution # "ping6" and "ping -6" availability varies depending on the distribution
if type ping6 > /dev/null 2>&1; then if type ping6 >/dev/null 2>&1; then
PING6="ping6 -c3 ipv6.google.com > /dev/null 2>&1" PING6="ping6 -c3 ipv6.google.com > /dev/null 2>&1"
else else
PING6="ping -6 -c3 ipv6.google.com > /dev/null 2>&1" PING6="ping -6 -c3 ipv6.google.com > /dev/null 2>&1"
@ -249,7 +249,7 @@ function installQuestions () {
echo " 1) Default: 1194" echo " 1) Default: 1194"
echo " 2) Custom" echo " 2) Custom"
echo " 3) Random [49152-65535]" echo " 3) Random [49152-65535]"
until [[ "$PORT_CHOICE" =~ ^[1-3]$ ]]; do until [[ $PORT_CHOICE =~ ^[1-3]$ ]]; do
read -rp "Port choice [1-3]: " -e -i 1 PORT_CHOICE read -rp "Port choice [1-3]: " -e -i 1 PORT_CHOICE
done done
case $PORT_CHOICE in case $PORT_CHOICE in
@ -257,7 +257,7 @@ function installQuestions () {
PORT="1194" PORT="1194"
;; ;;
2) 2)
until [[ "$PORT" =~ ^[0-9]+$ ]] && [ "$PORT" -ge 1 ] && [ "$PORT" -le 65535 ]; do until [[ $PORT =~ ^[0-9]+$ ]] && [ "$PORT" -ge 1 ] && [ "$PORT" -le 65535 ]; do
read -rp "Custom port [1-65535]: " -e -i 1194 PORT read -rp "Custom port [1-65535]: " -e -i 1194 PORT
done done
;; ;;
@ -272,7 +272,7 @@ function installQuestions () {
echo "UDP is faster. Unless it is not available, you shouldn't use TCP." echo "UDP is faster. Unless it is not available, you shouldn't use TCP."
echo " 1) UDP" echo " 1) UDP"
echo " 2) TCP" echo " 2) TCP"
until [[ "$PROTOCOL_CHOICE" =~ ^[1-2]$ ]]; do until [[ $PROTOCOL_CHOICE =~ ^[1-2]$ ]]; do
read -rp "Protocol [1-2]: " -e -i 1 PROTOCOL_CHOICE read -rp "Protocol [1-2]: " -e -i 1 PROTOCOL_CHOICE
done done
case $PROTOCOL_CHOICE in case $PROTOCOL_CHOICE in
@ -298,7 +298,7 @@ function installQuestions () {
echo " 11) AdGuard DNS (Anycast: worldwide)" echo " 11) AdGuard DNS (Anycast: worldwide)"
echo " 12) NextDNS (Anycast: worldwide)" echo " 12) NextDNS (Anycast: worldwide)"
echo " 13) Custom" echo " 13) Custom"
until [[ "$DNS" =~ ^[0-9]+$ ]] && [ "$DNS" -ge 1 ] && [ "$DNS" -le 13 ]; do until [[ $DNS =~ ^[0-9]+$ ]] && [ "$DNS" -ge 1 ] && [ "$DNS" -le 13 ]; do
read -rp "DNS [1-12]: " -e -i 3 DNS read -rp "DNS [1-12]: " -e -i 3 DNS
if [[ $DNS == 2 ]] && [[ -e /etc/unbound/unbound.conf ]]; then if [[ $DNS == 2 ]] && [[ -e /etc/unbound/unbound.conf ]]; then
echo "" echo ""
@ -311,18 +311,18 @@ function installQuestions () {
until [[ $CONTINUE =~ (y|n) ]]; do until [[ $CONTINUE =~ (y|n) ]]; do
read -rp "Apply configuration changes to Unbound? [y/n]: " -e CONTINUE read -rp "Apply configuration changes to Unbound? [y/n]: " -e CONTINUE
done done
if [[ $CONTINUE == "n" ]];then if [[ $CONTINUE == "n" ]]; then
# Break the loop and cleanup # Break the loop and cleanup
unset DNS unset DNS
unset CONTINUE unset CONTINUE
fi fi
elif [[ $DNS == "13" ]]; then elif [[ $DNS == "13" ]]; then
until [[ "$DNS1" =~ ^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$ ]]; do until [[ $DNS1 =~ ^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$ ]]; do
read -rp "Primary DNS: " -e DNS1 read -rp "Primary DNS: " -e DNS1
done done
until [[ "$DNS2" =~ ^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$ ]]; do until [[ $DNS2 =~ ^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$ ]]; do
read -rp "Secondary DNS (optional): " -e DNS2 read -rp "Secondary DNS (optional): " -e DNS2
if [[ "$DNS2" == "" ]]; then if [[ $DNS2 == "" ]]; then
break break
fi fi
done done
@ -333,7 +333,7 @@ function installQuestions () {
until [[ $COMPRESSION_ENABLED =~ (y|n) ]]; do until [[ $COMPRESSION_ENABLED =~ (y|n) ]]; do
read -rp"Enable compression? [y/n]: " -e -i n COMPRESSION_ENABLED read -rp"Enable compression? [y/n]: " -e -i n COMPRESSION_ENABLED
done done
if [[ $COMPRESSION_ENABLED == "y" ]];then if [[ $COMPRESSION_ENABLED == "y" ]]; then
echo "Choose which compression algorithm you want to use: (they are ordered by efficiency)" echo "Choose which compression algorithm you want to use: (they are ordered by efficiency)"
echo " 1) LZ4-v2" echo " 1) LZ4-v2"
echo " 2) LZ4" echo " 2) LZ4"
@ -362,7 +362,7 @@ function installQuestions () {
until [[ $CUSTOMIZE_ENC =~ (y|n) ]]; do until [[ $CUSTOMIZE_ENC =~ (y|n) ]]; do
read -rp "Customize encryption settings? [y/n]: " -e -i n CUSTOMIZE_ENC read -rp "Customize encryption settings? [y/n]: " -e -i n CUSTOMIZE_ENC
done done
if [[ $CUSTOMIZE_ENC == "n" ]];then if [[ $CUSTOMIZE_ENC == "n" ]]; then
# Use default, sane and fast parameters # Use default, sane and fast parameters
CIPHER="AES-128-GCM" CIPHER="AES-128-GCM"
CERT_TYPE="1" # ECDSA CERT_TYPE="1" # ECDSA
@ -381,7 +381,7 @@ function installQuestions () {
echo " 4) AES-128-CBC" echo " 4) AES-128-CBC"
echo " 5) AES-192-CBC" echo " 5) AES-192-CBC"
echo " 6) AES-256-CBC" echo " 6) AES-256-CBC"
until [[ "$CIPHER_CHOICE" =~ ^[1-6]$ ]]; do until [[ $CIPHER_CHOICE =~ ^[1-6]$ ]]; do
read -rp "Cipher [1-6]: " -e -i 1 CIPHER_CHOICE read -rp "Cipher [1-6]: " -e -i 1 CIPHER_CHOICE
done done
case $CIPHER_CHOICE in case $CIPHER_CHOICE in
@ -439,7 +439,7 @@ function installQuestions () {
echo " 1) 2048 bits (recommended)" echo " 1) 2048 bits (recommended)"
echo " 2) 3072 bits" echo " 2) 3072 bits"
echo " 3) 4096 bits" echo " 3) 4096 bits"
until [[ "$RSA_KEY_SIZE_CHOICE" =~ ^[1-3]$ ]]; do until [[ $RSA_KEY_SIZE_CHOICE =~ ^[1-3]$ ]]; do
read -rp "RSA key size [1-3]: " -e -i 1 RSA_KEY_SIZE_CHOICE read -rp "RSA key size [1-3]: " -e -i 1 RSA_KEY_SIZE_CHOICE
done done
case $RSA_KEY_SIZE_CHOICE in case $RSA_KEY_SIZE_CHOICE in
@ -524,7 +524,7 @@ function installQuestions () {
echo " 1) 2048 bits (recommended)" echo " 1) 2048 bits (recommended)"
echo " 2) 3072 bits" echo " 2) 3072 bits"
echo " 3) 4096 bits" echo " 3) 4096 bits"
until [[ "$DH_KEY_SIZE_CHOICE" =~ ^[1-3]$ ]]; do until [[ $DH_KEY_SIZE_CHOICE =~ ^[1-3]$ ]]; do
read -rp "DH key size [1-3]: " -e -i 1 DH_KEY_SIZE_CHOICE read -rp "DH key size [1-3]: " -e -i 1 DH_KEY_SIZE_CHOICE
done done
case $DH_KEY_SIZE_CHOICE in case $DH_KEY_SIZE_CHOICE in
@ -542,9 +542,9 @@ function installQuestions () {
esac esac
echo "" echo ""
# The "auth" options behaves differently with AEAD ciphers # The "auth" options behaves differently with AEAD ciphers
if [[ "$CIPHER" =~ CBC$ ]]; then if [[ $CIPHER =~ CBC$ ]]; then
echo "The digest algorithm authenticates data channel packets and tls-auth packets from the control channel." echo "The digest algorithm authenticates data channel packets and tls-auth packets from the control channel."
elif [[ "$CIPHER" =~ GCM$ ]]; then elif [[ $CIPHER =~ GCM$ ]]; then
echo "The digest algorithm authenticates tls-auth packets from the control channel." echo "The digest algorithm authenticates tls-auth packets from the control channel."
fi fi
echo "Which digest algorithm do you want to use for HMAC?" echo "Which digest algorithm do you want to use for HMAC?"
@ -583,7 +583,7 @@ function installQuestions () {
fi fi
} }
function installOpenVPN () { function installOpenVPN() {
if [[ $AUTO_INSTALL == "y" ]]; then if [[ $AUTO_INSTALL == "y" ]]; then
# Set default choices so that no questions will be asked. # Set default choices so that no questions will be asked.
APPROVE_INSTALL=${APPROVE_INSTALL:-y} APPROVE_INSTALL=${APPROVE_INSTALL:-y}
@ -612,19 +612,19 @@ function installOpenVPN () {
# Get the "public" interface from the default route # Get the "public" interface from the default route
NIC=$(ip -4 route ls | grep default | grep -Po '(?<=dev )(\S+)' | head -1) NIC=$(ip -4 route ls | grep default | grep -Po '(?<=dev )(\S+)' | head -1)
if [[ -z "$NIC" ]] && [[ "$IPV6_SUPPORT" == 'y' ]]; then if [[ -z $NIC ]] && [[ $IPV6_SUPPORT == 'y' ]]; then
NIC=$(ip -6 route show default | sed -ne 's/^default .* dev \([^ ]*\) .*$/\1/p') NIC=$(ip -6 route show default | sed -ne 's/^default .* dev \([^ ]*\) .*$/\1/p')
fi fi
# $NIC can not be empty for script rm-openvpn-rules.sh # $NIC can not be empty for script rm-openvpn-rules.sh
if [[ -z "$NIC" ]]; then if [[ -z $NIC ]]; then
echo echo
echo "Can not detect public interface." echo "Can not detect public interface."
echo "This needs for setup MASQUERADE." echo "This needs for setup MASQUERADE."
until [[ $CONTINUE =~ (y|n) ]]; do until [[ $CONTINUE =~ (y|n) ]]; do
read -rp "Continue? [y/n]: " -e CONTINUE read -rp "Continue? [y/n]: " -e CONTINUE
done done
if [[ "$CONTINUE" == "n" ]]; then if [[ $CONTINUE == "n" ]]; then
exit 1 exit 1
fi fi
fi fi
@ -633,31 +633,31 @@ function installOpenVPN () {
# idempotent on multiple runs, but will only install OpenVPN from upstream # idempotent on multiple runs, but will only install OpenVPN from upstream
# the first time. # the first time.
if [[ ! -e /etc/openvpn/server.conf ]]; then if [[ ! -e /etc/openvpn/server.conf ]]; then
if [[ "$OS" =~ (debian|ubuntu) ]]; then if [[ $OS =~ (debian|ubuntu) ]]; then
apt-get update apt-get update
apt-get -y install ca-certificates gnupg apt-get -y install ca-certificates gnupg
# We add the OpenVPN repo to get the latest version. # We add the OpenVPN repo to get the latest version.
if [[ "$VERSION_ID" = "8" ]]; then if [[ $VERSION_ID == "8" ]]; then
echo "deb http://build.openvpn.net/debian/openvpn/stable jessie main" > /etc/apt/sources.list.d/openvpn.list echo "deb http://build.openvpn.net/debian/openvpn/stable jessie main" >/etc/apt/sources.list.d/openvpn.list
wget -O - https://swupdate.openvpn.net/repos/repo-public.gpg | apt-key add - wget -O - https://swupdate.openvpn.net/repos/repo-public.gpg | apt-key add -
apt-get update apt-get update
fi fi
if [[ "$VERSION_ID" = "16.04" ]]; then if [[ $VERSION_ID == "16.04" ]]; then
echo "deb http://build.openvpn.net/debian/openvpn/stable xenial main" > /etc/apt/sources.list.d/openvpn.list echo "deb http://build.openvpn.net/debian/openvpn/stable xenial main" >/etc/apt/sources.list.d/openvpn.list
wget -O - https://swupdate.openvpn.net/repos/repo-public.gpg | apt-key add - wget -O - https://swupdate.openvpn.net/repos/repo-public.gpg | apt-key add -
apt-get update apt-get update
fi fi
# Ubuntu > 16.04 and Debian > 8 have OpenVPN >= 2.4 without the need of a third party repository. # Ubuntu > 16.04 and Debian > 8 have OpenVPN >= 2.4 without the need of a third party repository.
apt-get install -y openvpn iptables openssl wget ca-certificates curl apt-get install -y openvpn iptables openssl wget ca-certificates curl
elif [[ "$OS" = 'centos' ]]; then elif [[ $OS == 'centos' ]]; then
yum install -y epel-release yum install -y epel-release
yum install -y openvpn iptables openssl wget ca-certificates curl tar 'policycoreutils-python*' yum install -y openvpn iptables openssl wget ca-certificates curl tar 'policycoreutils-python*'
elif [[ "$OS" = 'amzn' ]]; then elif [[ $OS == 'amzn' ]]; then
amazon-linux-extras install -y epel amazon-linux-extras install -y epel
yum install -y openvpn iptables openssl wget ca-certificates curl yum install -y openvpn iptables openssl wget ca-certificates curl
elif [[ "$OS" = 'fedora' ]]; then elif [[ $OS == 'fedora' ]]; then
dnf install -y openvpn iptables openssl wget ca-certificates curl dnf install -y openvpn iptables openssl wget ca-certificates curl
elif [[ "$OS" = 'arch' ]]; then elif [[ $OS == 'arch' ]]; then
# Install required dependencies and upgrade the system # Install required dependencies and upgrade the system
pacman --needed --noconfirm -Syu openvpn iptables openssl wget ca-certificates curl pacman --needed --noconfirm -Syu openvpn iptables openssl wget ca-certificates curl
fi fi
@ -688,21 +688,21 @@ function installOpenVPN () {
cd /etc/openvpn/easy-rsa/ || return cd /etc/openvpn/easy-rsa/ || return
case $CERT_TYPE in case $CERT_TYPE in
1) 1)
echo "set_var EASYRSA_ALGO ec" > vars echo "set_var EASYRSA_ALGO ec" >vars
echo "set_var EASYRSA_CURVE $CERT_CURVE" >> vars echo "set_var EASYRSA_CURVE $CERT_CURVE" >>vars
;; ;;
2) 2)
echo "set_var EASYRSA_KEY_SIZE $RSA_KEY_SIZE" > vars echo "set_var EASYRSA_KEY_SIZE $RSA_KEY_SIZE" >vars
;; ;;
esac esac
# Generate a random, alphanumeric identifier of 16 characters for CN and one for server name # Generate a random, alphanumeric identifier of 16 characters for CN and one for server name
SERVER_CN="cn_$(head /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 16 | head -n 1)" SERVER_CN="cn_$(head /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 16 | head -n 1)"
echo "$SERVER_CN" > SERVER_CN_GENERATED echo "$SERVER_CN" >SERVER_CN_GENERATED
SERVER_NAME="server_$(head /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 16 | head -n 1)" SERVER_NAME="server_$(head /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 16 | head -n 1)"
echo "$SERVER_NAME" > SERVER_NAME_GENERATED echo "$SERVER_NAME" >SERVER_NAME_GENERATED
echo "set_var EASYRSA_REQ_CN $SERVER_CN" >> vars echo "set_var EASYRSA_REQ_CN $SERVER_CN" >>vars
# Create the PKI, set up the CA, the DH params and the server certificate # Create the PKI, set up the CA, the DH params and the server certificate
./easyrsa init-pki ./easyrsa init-pki
@ -748,11 +748,11 @@ function installOpenVPN () {
chmod 644 /etc/openvpn/crl.pem chmod 644 /etc/openvpn/crl.pem
# Generate server.conf # Generate server.conf
echo "port $PORT" > /etc/openvpn/server.conf echo "port $PORT" >/etc/openvpn/server.conf
if [[ "$IPV6_SUPPORT" == 'n' ]]; then if [[ $IPV6_SUPPORT == 'n' ]]; then
echo "proto $PROTOCOL" >> /etc/openvpn/server.conf echo "proto $PROTOCOL" >>/etc/openvpn/server.conf
elif [[ "$IPV6_SUPPORT" == 'y' ]]; then elif [[ $IPV6_SUPPORT == 'y' ]]; then
echo "proto ${PROTOCOL}6" >> /etc/openvpn/server.conf echo "proto ${PROTOCOL}6" >>/etc/openvpn/server.conf
fi fi
echo "dev tun echo "dev tun
@ -763,7 +763,7 @@ persist-tun
keepalive 10 120 keepalive 10 120
topology subnet topology subnet
server 10.8.0.0 255.255.255.0 server 10.8.0.0 255.255.255.0
ifconfig-pool-persist ipp.txt" >> /etc/openvpn/server.conf ifconfig-pool-persist ipp.txt" >>/etc/openvpn/server.conf
# DNS resolvers # DNS resolvers
case $DNS in case $DNS in
@ -777,87 +777,87 @@ ifconfig-pool-persist ipp.txt" >> /etc/openvpn/server.conf
fi fi
# Obtain the resolvers from resolv.conf and use them for OpenVPN # Obtain the resolvers from resolv.conf and use them for OpenVPN
grep -v '#' $RESOLVCONF | grep 'nameserver' | grep -E -o '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | while read -r line; do grep -v '#' $RESOLVCONF | grep 'nameserver' | grep -E -o '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | while read -r line; do
echo "push \"dhcp-option DNS $line\"" >> /etc/openvpn/server.conf echo "push \"dhcp-option DNS $line\"" >>/etc/openvpn/server.conf
done done
;; ;;
2) # Self-hosted DNS resolver (Unbound) 2) # Self-hosted DNS resolver (Unbound)
echo 'push "dhcp-option DNS 10.8.0.1"' >> /etc/openvpn/server.conf echo 'push "dhcp-option DNS 10.8.0.1"' >>/etc/openvpn/server.conf
;; ;;
3) # Cloudflare 3) # Cloudflare
echo 'push "dhcp-option DNS 1.0.0.1"' >> /etc/openvpn/server.conf echo 'push "dhcp-option DNS 1.0.0.1"' >>/etc/openvpn/server.conf
echo 'push "dhcp-option DNS 1.1.1.1"' >> /etc/openvpn/server.conf echo 'push "dhcp-option DNS 1.1.1.1"' >>/etc/openvpn/server.conf
;; ;;
4) # Quad9 4) # Quad9
echo 'push "dhcp-option DNS 9.9.9.9"' >> /etc/openvpn/server.conf echo 'push "dhcp-option DNS 9.9.9.9"' >>/etc/openvpn/server.conf
echo 'push "dhcp-option DNS 149.112.112.112"' >> /etc/openvpn/server.conf echo 'push "dhcp-option DNS 149.112.112.112"' >>/etc/openvpn/server.conf
;; ;;
5) # Quad9 uncensored 5) # Quad9 uncensored
echo 'push "dhcp-option DNS 9.9.9.10"' >> /etc/openvpn/server.conf echo 'push "dhcp-option DNS 9.9.9.10"' >>/etc/openvpn/server.conf
echo 'push "dhcp-option DNS 149.112.112.10"' >> /etc/openvpn/server.conf echo 'push "dhcp-option DNS 149.112.112.10"' >>/etc/openvpn/server.conf
;; ;;
6) # FDN 6) # FDN
echo 'push "dhcp-option DNS 80.67.169.40"' >> /etc/openvpn/server.conf echo 'push "dhcp-option DNS 80.67.169.40"' >>/etc/openvpn/server.conf
echo 'push "dhcp-option DNS 80.67.169.12"' >> /etc/openvpn/server.conf echo 'push "dhcp-option DNS 80.67.169.12"' >>/etc/openvpn/server.conf
;; ;;
7) # DNS.WATCH 7) # DNS.WATCH
echo 'push "dhcp-option DNS 84.200.69.80"' >> /etc/openvpn/server.conf echo 'push "dhcp-option DNS 84.200.69.80"' >>/etc/openvpn/server.conf
echo 'push "dhcp-option DNS 84.200.70.40"' >> /etc/openvpn/server.conf echo 'push "dhcp-option DNS 84.200.70.40"' >>/etc/openvpn/server.conf
;; ;;
8) # OpenDNS 8) # OpenDNS
echo 'push "dhcp-option DNS 208.67.222.222"' >> /etc/openvpn/server.conf 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 echo 'push "dhcp-option DNS 208.67.220.220"' >>/etc/openvpn/server.conf
;; ;;
9) # Google 9) # Google
echo 'push "dhcp-option DNS 8.8.8.8"' >> /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 echo 'push "dhcp-option DNS 8.8.4.4"' >>/etc/openvpn/server.conf
;; ;;
10) # Yandex Basic 10) # Yandex Basic
echo 'push "dhcp-option DNS 77.88.8.8"' >> /etc/openvpn/server.conf 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 echo 'push "dhcp-option DNS 77.88.8.1"' >>/etc/openvpn/server.conf
;; ;;
11) # AdGuard DNS 11) # AdGuard DNS
echo 'push "dhcp-option DNS 176.103.130.130"' >> /etc/openvpn/server.conf echo 'push "dhcp-option DNS 176.103.130.130"' >>/etc/openvpn/server.conf
echo 'push "dhcp-option DNS 176.103.130.131"' >> /etc/openvpn/server.conf echo 'push "dhcp-option DNS 176.103.130.131"' >>/etc/openvpn/server.conf
;; ;;
12) # NextDNS 12) # NextDNS
echo 'push "dhcp-option DNS 45.90.28.167"' >> /etc/openvpn/server.conf echo 'push "dhcp-option DNS 45.90.28.167"' >>/etc/openvpn/server.conf
echo 'push "dhcp-option DNS 45.90.30.167"' >> /etc/openvpn/server.conf echo 'push "dhcp-option DNS 45.90.30.167"' >>/etc/openvpn/server.conf
;; ;;
13) # Custom DNS 13) # Custom DNS
echo "push \"dhcp-option DNS $DNS1\"" >> /etc/openvpn/server.conf echo "push \"dhcp-option DNS $DNS1\"" >>/etc/openvpn/server.conf
if [[ "$DNS2" != "" ]]; then if [[ $DNS2 != "" ]]; then
echo "push \"dhcp-option DNS $DNS2\"" >> /etc/openvpn/server.conf echo "push \"dhcp-option DNS $DNS2\"" >>/etc/openvpn/server.conf
fi fi
;; ;;
esac esac
echo 'push "redirect-gateway def1 bypass-dhcp"' >> /etc/openvpn/server.conf echo 'push "redirect-gateway def1 bypass-dhcp"' >>/etc/openvpn/server.conf
# IPv6 network settings if needed # IPv6 network settings if needed
if [[ "$IPV6_SUPPORT" == 'y' ]]; then if [[ $IPV6_SUPPORT == 'y' ]]; then
echo 'server-ipv6 fd42:42:42:42::/112 echo 'server-ipv6 fd42:42:42:42::/112
tun-ipv6 tun-ipv6
push tun-ipv6 push tun-ipv6
push "route-ipv6 2000::/3" push "route-ipv6 2000::/3"
push "redirect-gateway ipv6"' >> /etc/openvpn/server.conf push "redirect-gateway ipv6"' >>/etc/openvpn/server.conf
fi fi
if [[ $COMPRESSION_ENABLED == "y" ]]; then if [[ $COMPRESSION_ENABLED == "y" ]]; then
echo "compress $COMPRESSION_ALG" >> /etc/openvpn/server.conf echo "compress $COMPRESSION_ALG" >>/etc/openvpn/server.conf
fi fi
if [[ $DH_TYPE == "1" ]]; then if [[ $DH_TYPE == "1" ]]; then
echo "dh none" >> /etc/openvpn/server.conf echo "dh none" >>/etc/openvpn/server.conf
echo "ecdh-curve $DH_CURVE" >> /etc/openvpn/server.conf echo "ecdh-curve $DH_CURVE" >>/etc/openvpn/server.conf
elif [[ $DH_TYPE == "2" ]]; then elif [[ $DH_TYPE == "2" ]]; then
echo "dh dh.pem" >> /etc/openvpn/server.conf echo "dh dh.pem" >>/etc/openvpn/server.conf
fi fi
case $TLS_SIG in case $TLS_SIG in
1) 1)
echo "tls-crypt tls-crypt.key 0" >> /etc/openvpn/server.conf echo "tls-crypt tls-crypt.key 0" >>/etc/openvpn/server.conf
;; ;;
2) 2)
echo "tls-auth tls-auth.key 0" >> /etc/openvpn/server.conf echo "tls-auth tls-auth.key 0" >>/etc/openvpn/server.conf
;; ;;
esac esac
@ -873,7 +873,7 @@ tls-version-min 1.2
tls-cipher $CC_CIPHER tls-cipher $CC_CIPHER
client-config-dir /etc/openvpn/ccd client-config-dir /etc/openvpn/ccd
status /var/log/openvpn/status.log status /var/log/openvpn/status.log
verb 3" >> /etc/openvpn/server.conf verb 3" >>/etc/openvpn/server.conf
# Create client-config-dir dir # Create client-config-dir dir
mkdir -p /etc/openvpn/ccd mkdir -p /etc/openvpn/ccd
@ -881,9 +881,9 @@ verb 3" >> /etc/openvpn/server.conf
mkdir -p /var/log/openvpn mkdir -p /var/log/openvpn
# Enable routing # Enable routing
echo 'net.ipv4.ip_forward=1' > /etc/sysctl.d/20-openvpn.conf echo 'net.ipv4.ip_forward=1' >/etc/sysctl.d/20-openvpn.conf
if [[ "$IPV6_SUPPORT" = 'y' ]]; then if [[ $IPV6_SUPPORT == 'y' ]]; then
echo 'net.ipv6.conf.all.forwarding=1' >> /etc/sysctl.d/20-openvpn.conf echo 'net.ipv6.conf.all.forwarding=1' >>/etc/sysctl.d/20-openvpn.conf
fi fi
# Apply sysctl rules # Apply sysctl rules
sysctl --system sysctl --system
@ -891,14 +891,14 @@ verb 3" >> /etc/openvpn/server.conf
# If SELinux is enabled and a custom port was selected, we need this # If SELinux is enabled and a custom port was selected, we need this
if hash sestatus 2>/dev/null; then if hash sestatus 2>/dev/null; then
if sestatus | grep "Current mode" | grep -qs "enforcing"; then if sestatus | grep "Current mode" | grep -qs "enforcing"; then
if [[ "$PORT" != '1194' ]]; then if [[ $PORT != '1194' ]]; then
semanage port -a -t openvpn_port_t -p "$PROTOCOL" "$PORT" semanage port -a -t openvpn_port_t -p "$PROTOCOL" "$PORT"
fi fi
fi fi
fi fi
# Finally, restart and enable OpenVPN # Finally, restart and enable OpenVPN
if [[ "$OS" == 'arch' || "$OS" == 'fedora' || "$OS" == 'centos' ]]; then if [[ $OS == 'arch' || $OS == 'fedora' || $OS == 'centos' ]]; then
# Don't modify package-provided service # Don't modify package-provided service
cp /usr/lib/systemd/system/openvpn-server@.service /etc/systemd/system/openvpn-server@.service cp /usr/lib/systemd/system/openvpn-server@.service /etc/systemd/system/openvpn-server@.service
@ -907,14 +907,14 @@ verb 3" >> /etc/openvpn/server.conf
# Another workaround to keep using /etc/openvpn/ # Another workaround to keep using /etc/openvpn/
sed -i 's|/etc/openvpn/server|/etc/openvpn|' /etc/systemd/system/openvpn-server@.service sed -i 's|/etc/openvpn/server|/etc/openvpn|' /etc/systemd/system/openvpn-server@.service
# On fedora, the service hardcodes the ciphers. We want to manage the cipher ourselves, so we remove it from the service # On fedora, the service hardcodes the ciphers. We want to manage the cipher ourselves, so we remove it from the service
if [[ "$OS" == "fedora" ]];then if [[ $OS == "fedora" ]]; then
sed -i 's|--cipher AES-256-GCM --ncp-ciphers AES-256-GCM:AES-128-GCM:AES-256-CBC:AES-128-CBC:BF-CBC||' /etc/systemd/system/openvpn-server@.service sed -i 's|--cipher AES-256-GCM --ncp-ciphers AES-256-GCM:AES-128-GCM:AES-256-CBC:AES-128-CBC:BF-CBC||' /etc/systemd/system/openvpn-server@.service
fi fi
systemctl daemon-reload systemctl daemon-reload
systemctl enable openvpn-server@server systemctl enable openvpn-server@server
systemctl restart openvpn-server@server systemctl restart openvpn-server@server
elif [[ "$OS" == "ubuntu" ]] && [[ "$VERSION_ID" == "16.04" ]]; then elif [[ $OS == "ubuntu" ]] && [[ $VERSION_ID == "16.04" ]]; then
# On Ubuntu 16.04, we use the package from the OpenVPN repo # On Ubuntu 16.04, we use the package from the OpenVPN repo
# This package uses a sysvinit service # This package uses a sysvinit service
systemctl enable openvpn systemctl enable openvpn
@ -933,7 +933,7 @@ verb 3" >> /etc/openvpn/server.conf
systemctl restart openvpn@server systemctl restart openvpn@server
fi fi
if [[ $DNS == 2 ]];then if [[ $DNS == 2 ]]; then
installUnbound installUnbound
fi fi
@ -946,13 +946,13 @@ iptables -t nat -I POSTROUTING 1 -s 10.8.0.0/24 -o $NIC -j MASQUERADE
iptables -I INPUT 1 -i tun0 -j ACCEPT iptables -I INPUT 1 -i tun0 -j ACCEPT
iptables -I FORWARD 1 -i $NIC -o tun0 -j ACCEPT iptables -I FORWARD 1 -i $NIC -o tun0 -j ACCEPT
iptables -I FORWARD 1 -i tun0 -o $NIC -j ACCEPT iptables -I FORWARD 1 -i tun0 -o $NIC -j ACCEPT
iptables -I INPUT 1 -i $NIC -p $PROTOCOL --dport $PORT -j ACCEPT" > /etc/iptables/add-openvpn-rules.sh iptables -I INPUT 1 -i $NIC -p $PROTOCOL --dport $PORT -j ACCEPT" >/etc/iptables/add-openvpn-rules.sh
if [[ "$IPV6_SUPPORT" == 'y' ]]; then if [[ $IPV6_SUPPORT == 'y' ]]; then
echo "ip6tables -t nat -I POSTROUTING 1 -s fd42:42:42:42::/112 -o $NIC -j MASQUERADE echo "ip6tables -t nat -I POSTROUTING 1 -s fd42:42:42:42::/112 -o $NIC -j MASQUERADE
ip6tables -I INPUT 1 -i tun0 -j ACCEPT ip6tables -I INPUT 1 -i tun0 -j ACCEPT
ip6tables -I FORWARD 1 -i $NIC -o tun0 -j ACCEPT ip6tables -I FORWARD 1 -i $NIC -o tun0 -j ACCEPT
ip6tables -I FORWARD 1 -i tun0 -o $NIC -j ACCEPT" >> /etc/iptables/add-openvpn-rules.sh ip6tables -I FORWARD 1 -i tun0 -o $NIC -j ACCEPT" >>/etc/iptables/add-openvpn-rules.sh
fi fi
# Script to remove rules # Script to remove rules
@ -961,13 +961,13 @@ iptables -t nat -D POSTROUTING -s 10.8.0.0/24 -o $NIC -j MASQUERADE
iptables -D INPUT -i tun0 -j ACCEPT iptables -D INPUT -i tun0 -j ACCEPT
iptables -D FORWARD -i $NIC -o tun0 -j ACCEPT iptables -D FORWARD -i $NIC -o tun0 -j ACCEPT
iptables -D FORWARD -i tun0 -o $NIC -j ACCEPT iptables -D FORWARD -i tun0 -o $NIC -j ACCEPT
iptables -D INPUT -i $NIC -p $PROTOCOL --dport $PORT -j ACCEPT" > /etc/iptables/rm-openvpn-rules.sh iptables -D INPUT -i $NIC -p $PROTOCOL --dport $PORT -j ACCEPT" >/etc/iptables/rm-openvpn-rules.sh
if [[ "$IPV6_SUPPORT" == 'y' ]]; then if [[ $IPV6_SUPPORT == 'y' ]]; then
echo "ip6tables -t nat -D POSTROUTING -s fd42:42:42:42::/112 -o $NIC -j MASQUERADE echo "ip6tables -t nat -D POSTROUTING -s fd42:42:42:42::/112 -o $NIC -j MASQUERADE
ip6tables -D INPUT -i tun0 -j ACCEPT ip6tables -D INPUT -i tun0 -j ACCEPT
ip6tables -D FORWARD -i $NIC -o tun0 -j ACCEPT ip6tables -D FORWARD -i $NIC -o tun0 -j ACCEPT
ip6tables -D FORWARD -i tun0 -o $NIC -j ACCEPT" >> /etc/iptables/rm-openvpn-rules.sh ip6tables -D FORWARD -i tun0 -o $NIC -j ACCEPT" >>/etc/iptables/rm-openvpn-rules.sh
fi fi
chmod +x /etc/iptables/add-openvpn-rules.sh chmod +x /etc/iptables/add-openvpn-rules.sh
@ -986,7 +986,7 @@ ExecStop=/etc/iptables/rm-openvpn-rules.sh
RemainAfterExit=yes RemainAfterExit=yes
[Install] [Install]
WantedBy=multi-user.target" > /etc/systemd/system/iptables-openvpn.service WantedBy=multi-user.target" >/etc/systemd/system/iptables-openvpn.service
# Enable service and apply rules # Enable service and apply rules
systemctl daemon-reload systemctl daemon-reload
@ -994,17 +994,17 @@ WantedBy=multi-user.target" > /etc/systemd/system/iptables-openvpn.service
systemctl start iptables-openvpn systemctl start iptables-openvpn
# If the server is behind a NAT, use the correct IP address for the clients to connect to # If the server is behind a NAT, use the correct IP address for the clients to connect to
if [[ "$ENDPOINT" != "" ]]; then if [[ $ENDPOINT != "" ]]; then
IP=$ENDPOINT IP=$ENDPOINT
fi fi
# client-template.txt is created so we have a template to add further users later # client-template.txt is created so we have a template to add further users later
echo "client" > /etc/openvpn/client-template.txt echo "client" >/etc/openvpn/client-template.txt
if [[ "$PROTOCOL" == 'udp' ]]; then if [[ $PROTOCOL == 'udp' ]]; then
echo "proto udp" >> /etc/openvpn/client-template.txt echo "proto udp" >>/etc/openvpn/client-template.txt
echo "explicit-exit-notify" >> /etc/openvpn/client-template.txt echo "explicit-exit-notify" >>/etc/openvpn/client-template.txt
elif [[ "$PROTOCOL" == 'tcp' ]]; then elif [[ $PROTOCOL == 'tcp' ]]; then
echo "proto tcp-client" >> /etc/openvpn/client-template.txt echo "proto tcp-client" >>/etc/openvpn/client-template.txt
fi fi
echo "remote $IP $PORT echo "remote $IP $PORT
dev tun dev tun
@ -1022,23 +1022,23 @@ tls-version-min 1.2
tls-cipher $CC_CIPHER tls-cipher $CC_CIPHER
ignore-unknown-option block-outside-dns ignore-unknown-option block-outside-dns
setenv opt block-outside-dns # Prevent Windows 10 DNS leak setenv opt block-outside-dns # Prevent Windows 10 DNS leak
verb 3" >> /etc/openvpn/client-template.txt verb 3" >>/etc/openvpn/client-template.txt
if [[ $COMPRESSION_ENABLED == "y" ]]; then if [[ $COMPRESSION_ENABLED == "y" ]]; then
echo "compress $COMPRESSION_ALG" >> /etc/openvpn/client-template.txt echo "compress $COMPRESSION_ALG" >>/etc/openvpn/client-template.txt
fi fi
# Generate the custom client.ovpn # Generate the custom client.ovpn
newClient newClient
echo "If you want to add more clients, you simply need to run this script another time!" echo "If you want to add more clients, you simply need to run this script another time!"
} }
function newClient () { function newClient() {
echo "" echo ""
echo "Tell me a name for the client." echo "Tell me a name for the client."
echo "Use one word only, no special characters." echo "Use one word only, no special characters."
until [[ "$CLIENT" =~ ^[a-zA-Z0-9_]+$ ]]; do until [[ $CLIENT =~ ^[a-zA-Z0-9_]+$ ]]; do
read -rp "Client name: " -e CLIENT read -rp "Client name: " -e CLIENT
done done
@ -1048,12 +1048,12 @@ function newClient () {
echo " 1) Add a passwordless client" echo " 1) Add a passwordless client"
echo " 2) Use a password for the client" echo " 2) Use a password for the client"
until [[ "$PASS" =~ ^[1-2]$ ]]; do until [[ $PASS =~ ^[1-2]$ ]]; do
read -rp "Select an option [1-2]: " -e -i 1 PASS read -rp "Select an option [1-2]: " -e -i 1 PASS
done done
CLIENTEXISTS=$(tail -n +2 /etc/openvpn/easy-rsa/pki/index.txt | grep -c -E "/CN=$CLIENT\$") CLIENTEXISTS=$(tail -n +2 /etc/openvpn/easy-rsa/pki/index.txt | grep -c -E "/CN=$CLIENT\$")
if [[ "$CLIENTEXISTS" = '1' ]]; then if [[ $CLIENTEXISTS == '1' ]]; then
echo "" echo ""
echo "The specified client CN was found in easy-rsa." echo "The specified client CN was found in easy-rsa."
else else
@ -1114,7 +1114,7 @@ function newClient () {
echo "</tls-auth>" echo "</tls-auth>"
;; ;;
esac esac
} >> "$homeDir/$CLIENT.ovpn" } >>"$homeDir/$CLIENT.ovpn"
echo "" echo ""
echo "The configuration file has been written to $homeDir/$CLIENT.ovpn." echo "The configuration file has been written to $homeDir/$CLIENT.ovpn."
@ -1123,9 +1123,9 @@ function newClient () {
exit 0 exit 0
} }
function revokeClient () { function revokeClient() {
NUMBEROFCLIENTS=$(tail -n +2 /etc/openvpn/easy-rsa/pki/index.txt | grep -c "^V") NUMBEROFCLIENTS=$(tail -n +2 /etc/openvpn/easy-rsa/pki/index.txt | grep -c "^V")
if [[ "$NUMBEROFCLIENTS" == '0' ]]; then if [[ $NUMBEROFCLIENTS == '0' ]]; then
echo "" echo ""
echo "You have no existing clients!" echo "You have no existing clients!"
exit 1 exit 1
@ -1134,7 +1134,7 @@ function revokeClient () {
echo "" echo ""
echo "Select the existing client certificate you want to revoke" echo "Select the existing client certificate you want to revoke"
tail -n +2 /etc/openvpn/easy-rsa/pki/index.txt | grep "^V" | cut -d '=' -f 2 | nl -s ') ' tail -n +2 /etc/openvpn/easy-rsa/pki/index.txt | grep "^V" | cut -d '=' -f 2 | nl -s ') '
if [[ "$NUMBEROFCLIENTS" == '1' ]]; then if [[ $NUMBEROFCLIENTS == '1' ]]; then
read -rp "Select one client [1]: " CLIENTNUMBER read -rp "Select one client [1]: " CLIENTNUMBER
else else
read -rp "Select one client [1-$NUMBEROFCLIENTS]: " CLIENTNUMBER read -rp "Select one client [1-$NUMBEROFCLIENTS]: " CLIENTNUMBER
@ -1155,7 +1155,7 @@ function revokeClient () {
echo "Certificate for client $CLIENT revoked." echo "Certificate for client $CLIENT revoked."
} }
function removeUnbound () { function removeUnbound() {
# Remove OpenVPN-related config # Remove OpenVPN-related config
sed -i '/include: \/etc\/unbound\/openvpn.conf/d' /etc/unbound/unbound.conf sed -i '/include: \/etc\/unbound\/openvpn.conf/d' /etc/unbound/unbound.conf
rm /etc/unbound/openvpn.conf rm /etc/unbound/openvpn.conf
@ -1166,17 +1166,17 @@ function removeUnbound () {
read -rp "Do you want to completely remove Unbound? [y/n]: " -e REMOVE_UNBOUND read -rp "Do you want to completely remove Unbound? [y/n]: " -e REMOVE_UNBOUND
done done
if [[ "$REMOVE_UNBOUND" == 'y' ]]; then if [[ $REMOVE_UNBOUND == 'y' ]]; then
# Stop Unbound # Stop Unbound
systemctl stop unbound systemctl stop unbound
if [[ "$OS" =~ (debian|ubuntu) ]]; then if [[ $OS =~ (debian|ubuntu) ]]; then
apt-get autoremove --purge -y unbound apt-get autoremove --purge -y unbound
elif [[ "$OS" == 'arch' ]]; then elif [[ $OS == 'arch' ]]; then
pacman --noconfirm -R unbound pacman --noconfirm -R unbound
elif [[ "$OS" =~ (centos|amzn) ]]; then elif [[ $OS =~ (centos|amzn) ]]; then
yum remove -y unbound yum remove -y unbound
elif [[ "$OS" == 'fedora' ]]; then elif [[ $OS == 'fedora' ]]; then
dnf remove -y unbound dnf remove -y unbound
fi fi
@ -1191,21 +1191,21 @@ function removeUnbound () {
fi fi
} }
function removeOpenVPN () { function removeOpenVPN() {
echo "" echo ""
# shellcheck disable=SC2034 # shellcheck disable=SC2034
read -rp "Do you really want to remove OpenVPN? [y/n]: " -e -i n REMOVE read -rp "Do you really want to remove OpenVPN? [y/n]: " -e -i n REMOVE
if [[ "$REMOVE" == 'y' ]]; then if [[ $REMOVE == 'y' ]]; then
# Get OpenVPN port from the configuration # Get OpenVPN port from the configuration
PORT=$(grep '^port ' /etc/openvpn/server.conf | cut -d " " -f 2) PORT=$(grep '^port ' /etc/openvpn/server.conf | cut -d " " -f 2)
# Stop OpenVPN # Stop OpenVPN
if [[ "$OS" =~ (fedora|arch|centos) ]]; then if [[ $OS =~ (fedora|arch|centos) ]]; then
systemctl disable openvpn-server@server systemctl disable openvpn-server@server
systemctl stop openvpn-server@server systemctl stop openvpn-server@server
# Remove customised service # Remove customised service
rm /etc/systemd/system/openvpn-server@.service rm /etc/systemd/system/openvpn-server@.service
elif [[ "$OS" == "ubuntu" ]] && [[ "$VERSION_ID" == "16.04" ]]; then elif [[ $OS == "ubuntu" ]] && [[ $VERSION_ID == "16.04" ]]; then
systemctl disable openvpn systemctl disable openvpn
systemctl stop openvpn systemctl stop openvpn
else else
@ -1227,23 +1227,23 @@ function removeOpenVPN () {
# SELinux # SELinux
if hash sestatus 2>/dev/null; then if hash sestatus 2>/dev/null; then
if sestatus | grep "Current mode" | grep -qs "enforcing"; then if sestatus | grep "Current mode" | grep -qs "enforcing"; then
if [[ "$PORT" != '1194' ]]; then if [[ $PORT != '1194' ]]; then
semanage port -d -t openvpn_port_t -p udp "$PORT" semanage port -d -t openvpn_port_t -p udp "$PORT"
fi fi
fi fi
fi fi
if [[ "$OS" =~ (debian|ubuntu) ]]; then if [[ $OS =~ (debian|ubuntu) ]]; then
apt-get autoremove --purge -y openvpn apt-get autoremove --purge -y openvpn
if [[ -e /etc/apt/sources.list.d/openvpn.list ]];then if [[ -e /etc/apt/sources.list.d/openvpn.list ]]; then
rm /etc/apt/sources.list.d/openvpn.list rm /etc/apt/sources.list.d/openvpn.list
apt-get update apt-get update
fi fi
elif [[ "$OS" == 'arch' ]]; then elif [[ $OS == 'arch' ]]; then
pacman --noconfirm -R openvpn pacman --noconfirm -R openvpn
elif [[ "$OS" =~ (centos|amzn) ]]; then elif [[ $OS =~ (centos|amzn) ]]; then
yum remove -y openvpn yum remove -y openvpn
elif [[ "$OS" == 'fedora' ]]; then elif [[ $OS == 'fedora' ]]; then
dnf remove -y openvpn dnf remove -y openvpn
fi fi
@ -1267,7 +1267,7 @@ function removeOpenVPN () {
fi fi
} }
function manageMenu () { function manageMenu() {
clear clear
echo "Welcome to OpenVPN-install!" echo "Welcome to OpenVPN-install!"
echo "The git repository is available at: https://github.com/angristan/openvpn-install" echo "The git repository is available at: https://github.com/angristan/openvpn-install"
@ -1279,7 +1279,7 @@ function manageMenu () {
echo " 2) Revoke existing user" echo " 2) Revoke existing user"
echo " 3) Remove OpenVPN" echo " 3) Remove OpenVPN"
echo " 4) Exit" echo " 4) Exit"
until [[ "$MENU_OPTION" =~ ^[1-4]$ ]]; do until [[ $MENU_OPTION =~ ^[1-4]$ ]]; do
read -rp "Select an option [1-4]: " MENU_OPTION read -rp "Select an option [1-4]: " MENU_OPTION
done done