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General process

OpenVPN is disabled by default.

When OpenVPN is enabled by root360 for specific users, they are able to connect to the bastion host using a TLS-secured private tunnel. When addionally MFA is active for the environment a valid token must be provided upon connect.

Following steps are required to enable and use OpenVPN:

check and accept preconditions
request activation of OpenVPN and optionally MFA
activate MFA if it is enabled
obtain the VPN client config, install and configure OpenVPN client
establish VPN connection

1. Preconditions

MFA preconditions, if MFA is enabled for the target environment

2. Request activation of OpenVPN

Request activation of OpenVPN for a dedicated environment via change request at https://support.root360.cloud.

3. activate MFA (if enabled)

Follow the steps for MFA activation.

4. Install and configure OpenVPN client

4.1 Windows

Download the OpenVPN Windows installer
Install the client software (make sure to tick "EasyRSA 2 Certificate Management Scripts" )
Create a Certificate Signing Request (see additional infos below) and send the resulting CSR file to root360 via https://share.root360.cloud/
Get the OpenVPN client config file including the signed certificate from root360
Copy the content of your private key into the config file (into the key section)
<key> -----BEGIN PRIVATE KEY----- ... -----END PRIVATE KEY----- </key>
Copy the secret VPN config file into directory C:\Users\<your-user>\OpenVPN\config

4.2 Linux

Install the OpenVPN client and easy-rsa using your package manager
Create a Certificate Signing Request (see additional infos below) and send the resulting CSR file to root360 via https://share.root360.cloud/
Get the OpenVPN client config file including the signed certificate from root360
Copy the content of your private key into the config file (into the key section)
<key> -----BEGIN PRIVATE KEY----- ... -----END PRIVATE KEY----- </key>
Copy the secret VPN config file into a directory of your choice

5. Establish connection

5.1 Windows

Start the programm OpenVPN GUI
Double-click the OpenVPN GUI systray icon (lower right desktop corner) to start the connection
Enter your username and the MFA token

5.2 Linux - Manual Start

Run OpenVPN client

openvpn --config /path/to/secret_vpn_config

Enter your username and the MFA token

6. Additional info

6.1 Create CSR

see example code below for your operating system:
- make sure to replace <username> with your name in format <first-digit-of-prename>_<surname> (e.g. j_doe) AND prepend the current date in format YYYYMMDD (e.g. 20200103): j_doe_20200103
- make sure to set valid values for at least Organization Name (your company), Name and Email Address (your email address registered in root360 support portal) as these information will be checked
- we recommend to secure your certificate with a strong password:
  - at least one lower-case character
  - at least upper-case character
  - at least one digit
  - at least 8 characters
  - optionally with symbols
copy the content of keys\<your-name>.csr into https://share.root360.cloud/
send the share link into the ticket requesting OpenVPN activation

6.1.1 Sample commands for Windows

C:\Users\john.doe> xcopy "C:\Program Files\OpenVPN\easy-rsa" "%USERPROFILE%\Documents\easy-rsa" /I /E
C:\Users\john.doe> cd "%USERPROFILE%\Documents\easy-rsa"
C:\Users\john.doe\Documents\easy-rsa> init-config.bat
C:\Users\john.doe\Documents\easy-rsa> vars.bat
C:\Users\john.doe\Documents\easy-rsa> mkdir keys
C:\Users\john.doe\Documents\easy-rsa> openssl req -days 3650 -new -keyout keys\<username>.key -out keys\<username>.csr -config openssl-1.0.0.cnf
Generating a RSA private key
............+++++
..........+++++
writing new private key to '<username>.key'
Enter PEM pass phrase:**********
Verifying - Enter PEM pass phrase:**********
-----
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [AU]:DE
State or Province Name (full name) [Some-State]:Saxony
Locality Name (eg, city) []:Leipzig
Organization Name (eg, company) [Internet Widgits Pty Ltd]:root360
Organizational Unit Name (eg, section) []:
Common Name (e.g. server FQDN or YOUR name) []:<username>_YYYYMMDD
Email Address []:j.doe@example.com

Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:
An optional company name []:

6.1.2 Sample commands for Linux

$ openssl req -new -keyout <username>.key -out <username>.csr -config /etc/ssl/openssl.cnf

Generating a RSA private key
............+++++
..........+++++
writing new private key to '<username>.key'
Enter PEM pass phrase:**********
Verifying - Enter PEM pass phrase:**********
-----
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [AU]:DE
State or Province Name (full name) [Some-State]:Saxony
Locality Name (eg, city) []:Leipzig
Organization Name (eg, company) [Internet Widgits Pty Ltd]:root360
Organizational Unit Name (eg, section) []:
Common Name (e.g. server FQDN or YOUR name) []:<username>_YYYYMMDD
Email Address []:j.doe@example.com

Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:
An optional company name []:

While running this command the following warning might be printed and can be ignored:

Can't load /[...]/.rnd into RNG
140068274860480:error:2406F079:random number generator:RAND_load_file:Cannot open file:../crypto/rand/randfile.c:88:Filename=/[...]/.rnd