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simopunkc 2022-11-02 07:43:52 +07:00 • committed by GitHub
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2
README.md
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@ -13,7 +13,7 @@ Run the script and follow the assistant:
Once it ends, you can run it again to add more users, remove some of them or even completely uninstall OpenVPN.
### I want to run my own VPN but don't have a server for that
You can get a VPS from just $1/month at [VirMach](https://billing.virmach.com/aff.php?aff=4109&url=billing.virmach.com/cart.php?gid=18).
You can get a VPS from just 2€/month at [AlphaVPS](https://alphavps.com/clients/aff.php?aff=474&pid=422).
### Donations

26
openvpn-install.sh
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@ -227,7 +227,7 @@ LimitNPROC=infinity" > /etc/systemd/system/openvpn-server@server.service.d/disab
fi
if [[ "$os" = "debian" || "$os" = "ubuntu" ]]; then
apt-get update
apt-get install -y openvpn openssl ca-certificates $firewall
apt-get install -y --no-install-recommends openvpn openssl ca-certificates $firewall
elif [[ "$os" = "centos" ]]; then
yum install -y epel-release
yum install -y openvpn openssl ca-certificates tar $firewall
@ -240,17 +240,17 @@ LimitNPROC=infinity" > /etc/systemd/system/openvpn-server@server.service.d/disab
systemctl enable --now firewalld.service
fi
# Get easy-rsa
easy_rsa_url='https://github.com/OpenVPN/easy-rsa/releases/download/v3.1.0/EasyRSA-3.1.0.tgz'
easy_rsa_url='https://github.com/OpenVPN/easy-rsa/releases/download/v3.1.1/EasyRSA-3.1.1.tgz'
mkdir -p /etc/openvpn/server/easy-rsa/
{ wget -qO- "$easy_rsa_url" 2>/dev/null || curl -sL "$easy_rsa_url" ; } | tar xz -C /etc/openvpn/server/easy-rsa/ --strip-components 1
chown -R root:root /etc/openvpn/server/easy-rsa/
cd /etc/openvpn/server/easy-rsa/
# Create the PKI, set up the CA and the server and client certificates
./easyrsa init-pki
./easyrsa --batch init-pki
./easyrsa --batch build-ca nopass
EASYRSA_CERT_EXPIRE=3650 ./easyrsa build-server-full server nopass
EASYRSA_CERT_EXPIRE=3650 ./easyrsa build-client-full "$client" nopass
EASYRSA_CRL_DAYS=3650 ./easyrsa gen-crl
./easyrsa --batch --days=3650 build-server-full server nopass
./easyrsa --batch --days=3650 build-client-full "$client" nopass
./easyrsa --batch --days=3650 gen-crl
# Move the stuff we need
cp pki/ca.crt pki/private/ca.key pki/issued/server.crt pki/private/server.key pki/crl.pem /etc/openvpn/server
# CRL is read with each client connection, while OpenVPN is dropped to nobody
@ -294,13 +294,13 @@ server 10.8.0.0 255.255.255.0" > /etc/openvpn/server/server.conf
1|"")
# Locate the proper resolv.conf
# Needed for systems running systemd-resolved
if grep -q '^nameserver 127.0.0.53' "/etc/resolv.conf"; then
resolv_conf="/run/systemd/resolve/resolv.conf"
else
if grep '^nameserver' "/etc/resolv.conf" | grep -qv '127.0.0.53' ; then
resolv_conf="/etc/resolv.conf"
else
resolv_conf="/run/systemd/resolve/resolv.conf"
fi
# Obtain the resolvers from resolv.conf and use them for OpenVPN
grep -v '^#\|^;' "$resolv_conf" | grep '^nameserver' | grep -oE '[0-9]{1,3}(\.[0-9]{1,3}){3}' | while read line; do
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
echo "push \"dhcp-option DNS $line\"" >> /etc/openvpn/server/server.conf
done
;;
@ -325,6 +325,7 @@ server 10.8.0.0 255.255.255.0" > /etc/openvpn/server/server.conf
echo 'push "dhcp-option DNS 94.140.15.15"' >> /etc/openvpn/server/server.conf
;;
esac
echo 'push "block-outside-dns"' >> /etc/openvpn/server/server.conf
echo "keepalive 10 120
cipher AES-256-CBC
user nobody
@ -428,7 +429,6 @@ remote-cert-tls server
auth SHA512
cipher AES-256-CBC
ignore-unknown-option block-outside-dns
block-outside-dns
verb 3" > /etc/openvpn/server/client-common.txt
# Enable and start the OpenVPN service
systemctl enable --now openvpn-server@server.service
@ -465,7 +465,7 @@ else
client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client")
done
cd /etc/openvpn/server/easy-rsa/
EASYRSA_CERT_EXPIRE=3650 ./easyrsa build-client-full "$client" nopass
./easyrsa --batch --days=3650 build-client-full "$client" nopass
# Generates the custom client.ovpn
new_client
echo
@ -499,7 +499,7 @@ else
if [[ "$revoke" =~ ^[yY]$ ]]; then
cd /etc/openvpn/server/easy-rsa/
./easyrsa --batch revoke "$client"
EASYRSA_CRL_DAYS=3650 ./easyrsa gen-crl
./easyrsa --batch --days=3650 gen-crl
rm -f /etc/openvpn/server/crl.pem
cp /etc/openvpn/server/easy-rsa/pki/crl.pem /etc/openvpn/server/crl.pem
# CRL is read with each client connection, when OpenVPN is dropped to nobody