Port 5053
rlm and rlm-disc · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | rlm and rlm-disc |
| Registered | 2008-07-28 |
Frequently asked questions
What is port 5053 used for?
Port 5053 is registered with the IANA for rlm and rlm-disc (TCP/UDP). Description: RLM License Server; RLM Discovery Server.
Is port 5053 a well-known port?
No. Port 5053 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 5053 is open?
Locally on Linux with ss -tulpn | grep ':5053\b', on Windows with netstat -ano | findstr :5053. To test a remote host use Test-NetConnection <host> -Port 5053 in PowerShell or nc -zv <host> 5053 on Linux/macOS.
How do I open port 5053 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 5053/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=5053/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 5053" -Direction Inbound -Protocol TCP -LocalPort 5053 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | rlm | RLM License Server |
| UDP | rlm-disc | RLM Discovery Server |