Port 11434
ollama · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | ollama |
| Registered | 2025-09-26 |
Frequently asked questions
What is port 11434 used for?
Port 11434 is registered with the IANA for ollama (TCP/UDP). Description: Ollama; Reserved.
Is port 11434 a well-known port?
No. Port 11434 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 11434 is open?
Locally on Linux with ss -tulpn | grep ':11434\b', on Windows with netstat -ano | findstr :11434. To test a remote host use Test-NetConnection <host> -Port 11434 in PowerShell or nc -zv <host> 11434 on Linux/macOS.
How do I open port 11434 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 11434/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=11434/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 11434" -Direction Inbound -Protocol TCP -LocalPort 11434 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | ollama | Ollama |
| UDP | – | Reserved |