CyberHunter
Local dataset, no network
// Other services

Port 2908: mao

Port 2908 is assigned by IANA to mao (mao).

2908

How mao works

Other services
client:2908maoresponse client:2908maoresponse

The client sends a request to port 2908 and the mao 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 2908 dangerous?

We have no specific security note for port 2908. 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 2908

ServicePortTransportDescriptionReferenceUpdated
mao 2908 TCP, UDP mao - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2908, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2908'      # process listening on 2908
sudo lsof -nP -i :2908

macOS

sudo lsof -nP -i :2908

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2908 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2908
netstat -ano | findstr :2908

From another machine

nmap -p 2908 -sV <host>
sudo nmap -sU -p 2908 <host>
nc -zv <host> 2908

Block it in the firewall

sudo ufw deny 2908/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2908" -Direction Inbound -LocalPort 2908 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2908 used for?

Port 2908 is assigned by IANA to mao (mao).

Is port 2908 TCP or UDP?

Port 2908 is registered for TCP and UDP.

Is it safe to open port 2908?

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 2908 is open?

On Linux run "ss -ltnup 'sport = :2908'", on macOS "lsof -nP -i :2908", and on Windows "netstat -ano | findstr :2908" to see the local process. From another machine, "nmap -p 2908 <host>" shows whether it is reachable.

05 Related
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