Add multiple certificates

• Use ./build-key-pass to generate a certificate, this way you need to enter a password when the client vpn connection is required

  cd /tools/openvpn-2.0.9/easy-rsa/2.0/

  source vars

  ./build-key-pass lovelinux1

  Password required for client connection
  
  
• Copy the client's certificate and private key
  sz -y keys/lovelinux1.{crt,key}
• Make a copy of the original configuration in the C:\Program Files (x86)\OpenVPN\config directory in Windows, and replace the client's certificate and private key with the newly applied certificate and private key
  

• Modify the ovpn file

  client
  dev tun
  proto tcp
  remote 192.168.1.33 1194     
  resolv-retry infinite
  nobind
  persist-key
  persist-tun
  ca ca.crt
  cert lovelinux1.crt                 \\客户端证书
  key lovelinux1.key                \\客户端私钥
  comp-lzo
  verb 3

• connect
  

• Prompt for password for certificate