All of Denbigh's web applications, including Parent Portal and Online Enrolment Enquiries, will require an OpenVPN connection to the Denbigh Filemaker Server so that they can access the Filemaker REST API. Although there are a number of different VPN protocols available, we at Denbigh have determined that OpenVPN is the most ideal solution going forward in terms of security and ease of setup. OpenVPN is an open-source and cross-platform VPN protocol which requires the client to have an installed certificate in order to access the network. It uses open-source technologies such as OpenSSL and SSL/TLS to achieve security, meaning it uses the same modern, standard technology currently being used to secure the Internet.
In comparison, L2TP/IPsec is not as efficient, since it needs to convert traffic into L2TP form first. It is also not as trustworthy as OpenVPN since it is not open-source, and is difficult to set up on web servers. The Secure Socket Tunneling Protocol (SSTP) is Windows only, and will hence not work on any Filemaker servers running on Macs or on our Linux-based web servers. PPTP is simply old and vulnerable. This leaves OpenVPN as our recommended solution, and is a prerequisite for adopting any of Denbigh's web applications. OpenVPN can be installed on both Windows and Mac servers/clients, and is often also a feature built into many routers.
The following code block is an example configuration file which would need to be supplied to Denbigh, and should be generated by the OpenVPN server or router. Some OpenVPN servers or routers may generate 2 seperate files. This is also fine, as long as all of the information exists. Please note that the configuration file generated by your OpenVPN server will most likely not look exactly like this sample.
client dev tun proto udp float nobind cipher AES-128-CBC comp-lzo adaptive resolv-retry infinite persist-key persist-tun verb 3 remote <SERVER IP ADDRESS> <SERVER PORT> reneg-sec 3600 <ca> -----BEGIN CERTIFICATE----- MIIE1jCCA76gAwIBAgIJAOMAQRbD8ADYMA0GCSqGSIb3DQEBCwUAMIGiMQswCQYD VQQGEwJCUjELMAkGA1UECBMCU1AxETAPBgNVBAcTCFNhb1BhdWxvMRMwEQYDVQQK EwpFeGFtcGxlQ29tMQ0wCwYDVQQLEwRBQ01FMRYwFAYDVQQDEw1FeGFtcGxlQ29t IENBMRAwDgYDVQQpEwdFYXN5UlNBMSUwIwYJKoZIhvcNAQkBFhZwb3N0bWFzdGVy QGV4YW1wbGUuY29tMB4XDTE0MTIyODE2NTg1MVoXDTI0MTIyNTE2NTg1MVowgaIx CzAJBgNVBAYTAkJSMQswCQYDVQQIEwJTUDERMA8GA1UEBxMIU2FvUGF1bG8xEzAR BgNVBAoTCkV4YW1wbGVDb20xDTALBgNVBAsTBEFDTUUxFjAUBgNVBAMTDUV4YW1w bGVDb20gQ0ExEDAOBgNVBCkTB0Vhc3lSU0ExJTAjBgkqhkiG9w0BCQEWFnBvc3Rt YXN0ZXJAZXhhbXBsZS5jb20wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIB AQDN2iT4+3BgxWjxm3uiFSoLpGoi6Elevywwx4EsvGdqWBNkANGH4wZdHrf+nCgB yofybvFXKKPMioPrh08aBOTXTyM5tZvjgcRKrWd/9oL5VrqaDym4ugFEHjugBy7J lXQfLIfIxwlZXKVMjMg2iBC/9H3H6fO2zthqkrLB0VPeAwvuUPkBxWfIps4MsjDm 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MIIFHTCCBAWgAwIBAgIBAjANBgkqhkiG9w0BAQsFADCBojELMAkGA1UEBhMCQlIx CzAJBgNVBAgTAlNQMREwDwYDVQQHEwhTYW9QYXVsbzETMBEGA1UEChMKRXhhbXBs ZUNvbTENMAsGA1UECxMEQUNNRTEWMBQGA1UEAxMNRXhhbXBsZUNvbSBDQTEQMA4G A1UEKRMHRWFzeVJTQTElMCMGCSqGSIb3DQEJARYWcG9zdG1hc3RlckBleGFtcGxl LmNvbTAeFw0xNDEyMjgxNzI3NThaFw0yNDEyMjUxNzI3NThaMIGjMQswCQYDVQQG EwJCUjELMAkGA1UECBMCU1AxETAPBgNVBAcTCFNhb1BhdWxvMRMwEQYDVQQKEwpF eGFtcGxlQ29tMQ0wCwYDVQQLEwRBQ01FMRcwFQYDVQQDEw5leGFtcGxlLWNsaWVu dDEQMA4GA1UEKRMHRWFzeVJTQTElMCMGCSqGSIb3DQEJARYWcG9zdG1hc3RlckBl eGFtcGxlLmNvbTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAOfPRMJo VTUPLizHuWYjOIeRnWUwZwjBEb2CKrFQBN/GqYl6uJ9toFwhkQMpsEh3cAJzeSuI mRIpgXUfadPR6ySj+Z9YBbZmDGfyU1HT09Yx3Q87MnGPY6tuTuNZhjtxYKy8N3jr 5dT2Vu+4zNUglW8JMN3PJDyXqaXYtPKazq+zZgjhumMKlulc7WjQiBan+hymiFuc 2+pN1buowuMrA1rI3XbJwKBNtwnG4XI1PoH0n98JEKgJ1XMFbmFTXzEelk/V27cA 0gVAukZeYbmcpab7+KRYT21dkW7k+/mmcC8cY6bhzPomnP9qzvYx3OVVZgmxZ+f1 647gIbyF2kMw1R8CAwEAAaOCAVkwggFVMAkGA1UdEwQCMAAwLQYJYIZIAYb4QgEN 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Please feel free to contact Denbigh if you have any enquiries regarding setting up OpenVPN.