Tools / Port checker / 6379
Is port 6379 open?
Port 6379 is Redis. Enter your server below to test it from Dallas, Amsterdam and London.
What port 6379 is used for
Default port for the Redis in-memory data store, widely used for caches, queues and sessions behind web applications.
Should port 6379 be open?
Should not face the internet directly. Exposed Redis instances are hijacked within hours, often to run crypto miners. Bind to localhost and require a password.
How to open port 6379
Ubuntu or Debian with ufw, allowing only your own address (replace 203.0.113.10):
sudo ufw allow from 203.0.113.10 to any port 6379 proto tcp
Rocky, Alma or CentOS with firewalld:
sudo firewall-cmd --permanent --add-port=6379/tcp && sudo firewall-cmd --reload
Windows Server, in PowerShell as administrator:
New-NetFirewallRule -DisplayName "Port 6379" -Direction Inbound -Protocol TCP -LocalPort 6379 -Action Allow
Then check that the service listens on all addresses, not only 127.0.0.1, and test again above.
Check another port
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Run your service on a PrivateByte server: a firewall you control and every port yours to open.