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// Other services

Port 9898: MonkeyCom

Port 9898 is assigned by IANA to monkeycom (MonkeyCom).

9898

How monkeycom works

Other services
client:9898monkeycomresponse client:9898monkeycomresponse

The client sends a request to port 9898 and the monkeycom 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 9898 dangerous?

We have no specific security note for port 9898. 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 9898

ServicePortTransportDescriptionReferenceUpdated
monkeycom 9898 TCP, UDP MonkeyCom - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 9898, and is it reachable?

Linux

sudo ss -ltnup 'sport = :9898'      # process listening on 9898
sudo lsof -nP -i :9898

macOS

sudo lsof -nP -i :9898

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 9898 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 9898
netstat -ano | findstr :9898

From another machine

nmap -p 9898 -sV <host>
sudo nmap -sU -p 9898 <host>
nc -zv <host> 9898

Block it in the firewall

sudo ufw deny 9898/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 9898" -Direction Inbound -LocalPort 9898 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 9898 used for?

Port 9898 is assigned by IANA to monkeycom (MonkeyCom).

Is port 9898 TCP or UDP?

Port 9898 is registered for TCP and UDP.

Is it safe to open port 9898?

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 9898 is open?

On Linux run "ss -ltnup 'sport = :9898'", on macOS "lsof -nP -i :9898", and on Windows "netstat -ano | findstr :9898" to see the local process. From another machine, "nmap -p 9898 <host>" shows whether it is reachable.

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