How to Enable Encryption in Transit in ParadeDB

How do I enable encryption in transit in ParadeDB?

Encryption in transit secures ParadeDB connections with TLS/SSL, protecting data exchanged between clients and the database.

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Description

Example H2

Example H3

What does “encryption in transit” mean for ParadeDB?

Encryption in transit forces every ParadeDB connection to use TLS/SSL, turning plain-text packets into encrypted ones that eavesdroppers cannot read.

How do I create the server and client certificates?

Generate a server key and certificate with OpenSSL, then a client key and certificate signed by the same CA.Store server.key and server.crt in $PGDATA; distribute the client files securely.

Which ParadeDB settings activate SSL?

ALTER SYSTEM approach

Run ALTER SYSTEM SET ssl = on; and define file paths with ssl_cert_file, ssl_key_file, and ssl_ca_file. Reload or restart ParadeDB for changes to apply.

postgresql.conf approach

Add the same parameters directly in postgresql.conf. Choose this when you prefer configuration-as-code over SQL commands.

How do applications connect over SSL?

Developers add sslmode=require or verify-full to their connection strings.Example: postgresql://app:secret@db.example.com/shop?sslmode=verify-full.

Can I verify encryption is active?

Query SELECT ssl, client_addr FROM pg_stat_ssl WHERE pid = pg_backend_pid();. A t in the ssl column confirms an encrypted session.

Best practices for production deployments

Use sslmode=verify-full, rotate certificates regularly, and store keys with strict file permissions 0600. Automate renewals with cert-manager or a CI job.

Common mistakes and fixes

Incorrect file permissions cause ParadeDB to refuse startup. Fix by running chmod 0600 server.key. Using sslmode=require without hostname validation exposes you to MITM; switch to verify-full.

Why How to Enable Encryption in Transit in ParadeDB is important

How to Enable Encryption in Transit in ParadeDB Example Usage


-- Encrypted query that totals customer spend
SELECT c.id, c.name, SUM(oi.quantity * p.price) AS lifetime_value
FROM   Customers   c
JOIN   Orders      o  ON o.customer_id = c.id
JOIN   OrderItems  oi ON oi.order_id   = o.id
JOIN   Products    p  ON p.id          = oi.product_id
GROUP  BY c.id, c.name
ORDER  BY lifetime_value DESC;

How to Enable Encryption in Transit in ParadeDB Syntax


-- Turn on SSL in ParadeDB
ALTER SYSTEM SET ssl = on;
ALTER SYSTEM SET ssl_cert_file = '/var/lib/paradedb/server.crt';
ALTER SYSTEM SET ssl_key_file  = '/var/lib/paradedb/server.key';
ALTER SYSTEM SET ssl_ca_file   = '/var/lib/paradedb/rootCA.crt';
-- Reload settings
SELECT pg_reload_conf();

-- Client connection string (ecommerce app)
postgresql://readonly:pa55@db.prod.local:5432/ecommerce?sslmode=verify-full

-- Verify encrypted channel in a session
SELECT ssl, client_addr
FROM   pg_stat_ssl
WHERE  pid = pg_backend_pid();

Common Mistakes

Forgetting to set file permissions on server.key. ParadeDB rejects the key if world-readable. Fix by running chmod 0600 server.key.
Using sslmode=require instead of verify-full. Without hostname validation, man-in-the-middle attacks are still possible. Always prefer verify-full in production.