CyberHunter
Local dataset, no network
// Other services

Port 1908: Dawn

Port 1908 is assigned by IANA to dawn (Dawn).

1908

How dawn works

Other services
client:1908dawnresponse client:1908dawnresponse

The client sends a request to port 1908 and the dawn service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 1908 dangerous?

We have no specific security note for port 1908. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 1908

ServicePortTransportDescriptionReferenceUpdated
dawn 1908 TCP, UDP Dawn - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1908, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1908'      # process listening on 1908
sudo lsof -nP -i :1908

macOS

sudo lsof -nP -i :1908

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1908 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1908
netstat -ano | findstr :1908

From another machine

nmap -p 1908 -sV <host>
sudo nmap -sU -p 1908 <host>
nc -zv <host> 1908

Block it in the firewall

sudo ufw deny 1908/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1908" -Direction Inbound -LocalPort 1908 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1908 used for?

Port 1908 is assigned by IANA to dawn (Dawn).

Is port 1908 TCP or UDP?

Port 1908 is registered for TCP and UDP.

Is it safe to open port 1908?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.

How do I check if port 1908 is open?

On Linux run "ss -ltnup 'sport = :1908'", on macOS "lsof -nP -i :1908", and on Windows "netstat -ano | findstr :1908" to see the local process. From another machine, "nmap -p 1908 <host>" shows whether it is reachable.

05 Related
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