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Info
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titleIntroduction

Basic Concepts (Summary)

What is HTTPS?

HTTPS (HyperText Transfer Protocol Secure) is the secure version of HTTP. It uses SSL/TLS to encrypt the communication between client and server, ensuring:

    • Confidentiality – Data is encrypted and cannot be read by third parties.

    • Authenticity – Verifies that the server is who it claims to be.

    • Integrity – Ensures that data has not been modified in transit.

What is SSL/TLS?

SSL (Secure Sockets Layer) and its successor TLS (Transport Layer Security) are cryptographic protocols that:

      • Establish a secure channel between two endpoints.

    • Use asymmetric encryption to exchange a symmetric session key.

    • Require a digital certificate to prove the server’s identity.

What is a Digital Certificate?

A digital certificate is a file used to establish trust and enable encryption. It is:

    • Issued by a Certificate Authority (CA).

    • Used by the server to prove its identity to the client.

    • Typically stored in .pfx, .crt or .pem formats.

    • Contains the public key, server name, expiration date, and the CA signature.

Without a valid certificate, HTTPS cannot be established. The certificate must be installed and properly referenced in the server configuration.

Configuring HTTPS/SSL in the system

Components with SSL Support

ComponentPurposeSSL Configuration
TWebServicesServer for engineering access (Solution Manager, Designer, files)TWebServices.json
TServerRuntime server: modules, data, file accessTServer.json + "SSL" checkbox in Designer



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JSON File Location and Structure

Configuration files are located at:

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    • TWebServices.json

    • TServer.json

tRPCServer section example:

json:
"tRPCServer":

{

"CertFileName_3111": "C:\\Users\\Public\\Documents\\FrameworX\\MachineSettings\\https\\Certificate.pfx",

...

      • CertFileName_<port> / CertPass_<port>: Define the certificate for a specific port. (3111 is just a port example)

      • Recommended: Use port-specific entries to ensure only specific ports are secured.

      • Avoid using CertFileName without a port suffix unless you intend to secure all ports.

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Component Behavior Details

TWebServices

    • Handles access to engineering tools and shared resources.

    • Runs once per machine, not suitable for multi-port setups.

    • To enable HTTPS:

      • Configure TWebServices.json with your certificate.

      • Configure Solution Location in Solution Manager → Server Information tab to use "https://...."

TServer

    • Manages runtime data, file access, modules, and client communication.

    • Supports multiple instances, each listening on a different port.

    • Allows enabling SSL per port, suitable for running multiple secured and unsecured projects simultaneously.

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Configuration Steps

    1. Obtain or generate a valid digital certificate (.pfx format).

    2. Copy it to:

      C:\Users\Public\Documents\FrameworX\MachineSettings\https\

    3. Edit TWebServices.json and/or TServer.json to reference the certificate.

    4. For TServer, enable the SSL checkbox in Designer under Runtime Startup.

    5. Restart the relevant executables to apply changes.

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Generating .pfx from .crt, .ca, .key, .csr

1. Concatenate certificate and CA chain:

cat your_cert.crt your_ca.crt > full_cert.crt

2. Generate .pfx:

openssl pkcs12 -export \ -out certificate.pfx \ -inkey private.key \ -in full_cert.crt \ -certfile your_ca.crt


This command will prompt for a password. Use that same password in your CertPass_<port> entry.

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Client Access URLs (HTTP vs HTTPS)

Enabling SSL on a port does not disable non-SSL access on a different port. Each protocol must use its own port.

SmartClient

      • Without SSL:

        http://127.0.0.1:3101/smartclient

      • With SSL:

        https://127.0.0.1:3111/smartclient

Port must be configured in TServer.json and defined as SSL Port in Designer.

HTML5 Client

      • Without SSL:

        http://127.0.0.1:3101/html5

      • With SSL:

        https://127.0.0.1:3111/html5

Port must be configured in TServer.json and defined as SSL Port in Designer.


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Best Practices

  • Use port-specific certificate configuration.

  • Always deploy SSL in production environments.

  • Keep .pfx backups and store passwords securely.

  • Validate certificate installation.


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