Port 25604
idtp · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | idtp |
| Registered | 2011-08-09 |
Frequently asked questions
What is port 25604 used for?
Port 25604 is registered with the IANA for idtp (TCP/UDP). Description: Identifier Tracing Protocol; Reserved.
Is port 25604 a well-known port?
No. Port 25604 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 25604 is open?
Locally on Linux with ss -tulpn | grep ':25604\b', on Windows with netstat -ano | findstr :25604. To test a remote host use Test-NetConnection <host> -Port 25604 in PowerShell or nc -zv <host> 25604 on Linux/macOS.
How do I open port 25604 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 25604/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=25604/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 25604" -Direction Inbound -Protocol TCP -LocalPort 25604 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | idtp | Identifier Tracing Protocol |
| UDP | – | Reserved |