Port 625
dec-dlm and dec_dlm · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | dec-dlm and dec_dlm |
Frequently asked questions
What is port 625 used for?
Port 625 is registered with the IANA for dec-dlm and dec_dlm (TCP/UDP). Description: DEC DLM IANA assigned this well-formed service name as a replacement for "dec_dlm".; DEC DLM.
Is port 625 a well-known port?
Yes. Port 625 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 625 is open?
Locally on Linux with ss -tulpn | grep ':625\b', on Windows with netstat -ano | findstr :625. To test a remote host use Test-NetConnection <host> -Port 625 in PowerShell or nc -zv <host> 625 on Linux/macOS.
How do I open port 625 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 625/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=625/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 625" -Direction Inbound -Protocol TCP -LocalPort 625 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | dec-dlm | DEC DLM IANA assigned this well-formed service name as a replacement for "dec_dlm". |
| TCP | dec_dlm | DEC DLM |
| UDP | dec-dlm | DEC DLM IANA assigned this well-formed service name as a replacement for "dec_dlm". |
| UDP | dec_dlm | DEC DLM |