Openvpn Easy-rsa Generate Key

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Mar 03, 2017 As I'd forgotten how to create a new OpenVPN user, it's not something I do every day, I thought I put here a reminder of the process used. To get a private key and a signed public key the easiest way is to use the Easy-RSA program that came with openvpn. Aug 22, 2016 I tried this by going to /etc/openvpn/easy-rsa and running 'build-key clientname'. I received a message about needing to source vars and.clean-all first. So I ran these commands (knowing that the certificates in the keys folder had already been moved out). Then I tried to generate the client certs again. We will go over using OpenVPN's built-in Easy-RSA scripts that come installed on VyOS by default. This article will not cover how X.509 PKIs work, or how to set up a more secure/better managed PKI, only how to set up a very basic PKI for use with OpenVPN and VyOS specifically. And now to generate the actual certificates, keys, and related.

  • Mar 15, 2016  1. Choose a system to act as your CA and create a new PKI and CA:./easyrsa init-pki./easyrsa build-ca 2. On the system that is requesting a certificate, init its own PKI and generate a keypair/request. Note that the init-pki is used only when this is done on a separate system (or at least a separate PKI dir.) This is the recommended procedure.
  • Code: Select all 1. Choose a system to act as your CA and create a new PKI and CA:./easyrsa init-pki./easyrsa build-ca 2. On the system that is requesting a certificate, init its own PKI and generate a keypair/request.

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Important: Commands below are executed in one Command Prompt window.

Openvpn Easy-rsa Generate Key Download

If you want to open a new Command Prompt window to execute commands (i.e. create certificates for new client):

  • Each time you open a new Command Prompt window, you need to execute vars command first, then execute other commands.
  • You don’t need to execute init-config command, unless you want to edit vars.bat file again.

Initialize the OpenVPN configuration

  1. Press Windows Key and R key, type cmd and press Enter key.
  2. Navigate to %ProgramFiles%OpenVPNeasy-rsa (e.g. D:OpenVPNeasy-rsa).
  3. Initialize the configurations.
  4. Open the vars.bat file in a text editor.
    1. Change the KEY_SIZE settings.
      Usually, set the private key size to 1024 or 2048.
    2. Edit the following lines to display your address and company.

      Later, when you make CA, certificates and keys, you will be asked to enter information that will be incorporated into your certificate request. If you change the default variables below, you don’t have to enter these information each time.

    3. Save the vars.bat file and back to Command Prompt window.
  5. Run the following commands, make sure you are operating in a clean environment.
    CAUTION: This will remove all certificates and keys from the keys directory.

Build Certificate Authority (CA)

  1. Run the following command to create the ca.crt and ca.key file in the keys directory.
  2. When prompted to enter information that will be incorporated into your certificate request, enter your country, organization, etc.

    Or press the Enter key to use the preset values appeared in brackets.

    Important: The only parameter that must be explicitly entered is the Common Name. In the example below, we set Common Name to OpenVPN_CA.

Build certificate and key for server

  1. Run the following command to create the {server_name}.crt and {server_name}.key file in the keys directory.
    In the command below, we create server.crt and server.key.
  2. When prompted to enter information that will be incorporated into your certificate request, enter your country, organization, etc.

    Or press the Enter key to use the preset values appeared in brackets.

    Important: The only parameter that must be explicitly entered is the Common Name. Enter the same name as{server_name}. In the example below, we set Common Name to server.
  3. When prompted to sign the certificate and commit, type y and press the Enter key.

Build certificate and key for client

  1. Run the following command to create the {client_name}.crt and {client_name}.key file in the keys directory.

    In the command below, we create client.crt and client.key.

  2. When prompted to enter information that will be incorporated into your certificate request, enter your country, organization, etc.

    Or press the Enter key to use the preset values appeared in brackets.

    Important: The only parameter that must be explicitly entered is the Common Name. Enter the same name as {client_name}. In the example below, we set Common Name to client.
  3. When prompted to sign the certificate and commit, type y and press the Enter key.
  4. Repeat steps 1 to 3 to create Certificate & Key for each client respectively.

    For each client, choose a name to identify, such as Windows.crt and Windows.key for Windows PC.

Build a ta.key

Run the following command to create ta.key file in the keys directory.

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