You can check which port Valkey is running on in several ways. Here are the easiest methods:

✅ 1. Check the Valkey configuration file

Open the config file:

grep ^port /etc/valkey/valkey.conf

Typical output:

port 6379

If it’s set to 0, Valkey is configured not to listen on a TCP port.

✅ 2. Ask the running server using valkey-cli

If Valkey is running, use:

valkey-cli CONFIG GET port

Expected output:

1) "port"
2) "6379"

This shows the actual port used at runtime (even if changed in memory).

✅ 3. Check systemd’s open ports

sudo ss -tulpn | grep valkey

or:

sudo lsof -i -n -P | grep valkey

Typical output:

valkey-ser 1234 valkey  *:6379

✅ 4. View systemd service journal

journalctl -u valkey | grep port

Valkey prints the listening port on startup.

Quick check summary:

• Config file: /etc/valkey/valkey.conf
• Default port: 6379
• CLI command: valkey-cli CONFIG GET port

If you want, I can help you check your specific system output — just paste it here.