Port 388
unidata-ldm · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | unidata-ldm |
| Modified | 2012-05-18 |
Frequently asked questions
What is port 388 used for?
Port 388 is registered with the IANA for unidata-ldm (TCP/UDP). Description: Unidata LDM.
Is port 388 a well-known port?
Yes. Port 388 is in the range 0–1023 (system or well-known ports). On Linux and macOS only privileged processes may bind to these ports.
How do I check whether port 388 is open?
Locally on Linux with ss -tulpn | grep ':388\b', on Windows with netstat -ano | findstr :388. To test a remote host use Test-NetConnection <host> -Port 388 in PowerShell or nc -zv <host> 388 on Linux/macOS.
How do I open port 388 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 388/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=388/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 388" -Direction Inbound -Protocol TCP -LocalPort 388 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | unidata-ldm | Unidata LDM |
| UDP | unidata-ldm | Unidata LDM |