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## https://community.openvpn.net/openvpn/wiki/EasyRSA3-OpenVPN-Howto
cd /etc/openvpn/server
if [ -z "$1" ]; then
echo "Caranya: $0 <nama-client>"
echo "Contoh: $0 sugiana"
exit 0
fi
HOSTNAME=$1
if [ ! -d easyrsa3-ca ]; then
echo "Jalankan dulu build-server-cert.sh"
exit 0
fi
# Create config file
if [ ! -f client.ovpn ]; then
if [ -z "$2" ]; then
echo "File client.ovpn belum ada, tolong sertakan IP publik mesin ini."
echo "Contoh: $0 $1 202.43.164.162"
exit 0
fi
IP_PUBLIC="$2"
cp /usr/share/doc/openvpn/examples/sample-config-files/client.conf client.ovpn
sed '/^proto udp/s/^/;/' client.ovpn > client.ovpn.tmp
sed -e 's/^;proto tcp/proto tcp/g' client.ovpn.tmp > client.ovpn
sed -e 's/^remote my-server-1/remote '$IP_PUBLIC'/g' client.ovpn > client.ovpn.tmp
sed '/^ns-cert-type server/s/^/;/' client.ovpn.tmp > client.ovpn
sed '/^tls-auth ta.key 1/s/^/;/' client.ovpn > client.ovpn.tmp
mv client.ovpn.tmp client.ovpn
fi
if [ ! -d easyrsa3-client ]; then
cp -r easy-rsa/easyrsa3 easyrsa3-client
fi
cd easyrsa3-client
if [ ! -d pki ]; then
./easyrsa init-pki || exit 1
fi
./easyrsa gen-req $HOSTNAME nopass || exit 1
cd ..
cd easyrsa3-ca
./easyrsa import-req ../easyrsa3-client/pki/reqs/$HOSTNAME.req $HOSTNAME
./easyrsa sign client $HOSTNAME
cd ..
# Backup
TMP_DIR=$HOSTNAME-tmp
CLIENT_DIR=/etc/openvpn/client
mkdir -p $TMP_DIR $CLIENT_DIR
CLIENT_DIR_FULLPATH=`realpath $CLIENT_DIR`
BACKUP_FILE=$CLIENT_DIR_FULLPATH/$HOSTNAME.tgz
cp easyrsa3-client/pki/private/$HOSTNAME.key $TMP_DIR/client.key
cp easyrsa3-ca/pki/issued/$HOSTNAME.crt $TMP_DIR/client.crt
cp easyrsa3-ca/pki/ca.crt $TMP_DIR/
cp client.ovpn $TMP_DIR/
read -p "Apakah server ini sebagai proxy (y/t, default tidak) ? " jwb
if [ "$jwb" = "y" ]; then
echo "route remote_host 255.255.255.255 net_gateway" >> $TMP_DIR/client.ovpn
echo "route 0.0.0.0 0.0.0.0 vpn_gateway" >> $TMP_DIR/client.ovpn
echo "redirect-gateway def1" >> $TMP_DIR/client.ovpn
fi
read -p "Apakah server ini mewajibkan username & password (y/t, default tidak) ? " jwb
if [ "$jwb" = "y" ]; then
echo "auth-user-pass" >> $TMP_DIR/client.ovpn
fi
cd $TMP_DIR
tar cfvz $BACKUP_FILE client.key client.crt ca.crt client.ovpn
cd ..
rm $TMP_DIR/client.key $TMP_DIR/client.crt $TMP_DIR/ca.crt $TMP_DIR/client.ovpn
rmdir $TMP_DIR
ls -l $BACKUP_FILE