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Configuring ChromeOS OpenVPN with PFSense
PFSense Certificates
Create CA
Login to PFsense
go to System → Certificate Manager
With the CA's tab selected click on +Add
Change method to Create an internal Certificate Authority
Fill out the remaining fields with your details
Click on Save
Click on Export CA (blue star seal icon)
Save the CA certificate to a secure location we will need it later
Create Server Cert
While in System → Certificate Manager click on the Certificates tab
Click on the +Add button
Change method to Create internal Certificate
Set the Certificate Authority to the CA you created in the previous section
Change the Certificate Type to Server Certificate
Fill out the remaining fields
Finally click on Save
OpenVPN Server Setup
Go to VPN → OpenVPN
While on the Servers tab click on the +Add button