RethinkDB Client
What is Port 28015?
Port 28015 is the default client driver port for RethinkDB, an open-source NoSQL database designed for real-time applications. RethinkDB stores JSON documents and provides a powerful query language (ReQL) that supports joins, subqueries, and geospatial queries. Its defining feature is the ability to push updated query results to applications in real-time using changefeeds — when data changes, connected clients are immediately notified. This makes RethinkDB ideal for real-time applications like collaborative editing, multiplayer games, and live dashboards. While the original company shut down in 2016, the project continues as a Linux Foundation project.
Common Uses
- Real-time application data storage
- Changefeed-driven live applications
- Collaborative editing backends
- Real-time dashboard data
Technical Details
Copy-paste commands to check port 28015 (RethinkDB Client) from your terminal
Test connectivity
nc -zv example.com 28015
curl -v --max-time 5 http://example.com:28015/
telnet example.com 28015
nmap -p 28015 -sV example.com
(echo > /dev/tcp/example.com/28015) 2>/dev/null && echo "open" || echo "closed"
Open port in firewall
sudo ufw allow 28015/tcp
sudo iptables -A INPUT -p tcp --dport 28015 -j ACCEPT
sudo firewall-cmd --permanent --add-port=28015/tcp && sudo firewall-cmd --reload
Security Considerations
Enable authentication for all connections. Restrict access to application servers only. Use TLS for encrypted connections. The RethinkDB admin interface (port 8080) should be restricted to administrators.
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