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// Other services

Port 2898: APPLIANCE-CFG

Port 2898 is assigned by IANA to appliance-cfg (APPLIANCE-CFG).

2898

How appliance-cfg works

Other services
client:2898appliance-cfgresponse client:2898appliance-cfgresponse

The client sends a request to port 2898 and the appliance-cfg 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 2898 dangerous?

We have no specific security note for port 2898. 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 2898

ServicePortTransportDescriptionReferenceUpdated
appliance-cfg 2898 TCP, UDP APPLIANCE-CFG - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2898, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2898'      # process listening on 2898
sudo lsof -nP -i :2898

macOS

sudo lsof -nP -i :2898

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2898 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2898
netstat -ano | findstr :2898

From another machine

nmap -p 2898 -sV <host>
sudo nmap -sU -p 2898 <host>
nc -zv <host> 2898

Block it in the firewall

sudo ufw deny 2898/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2898" -Direction Inbound -LocalPort 2898 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2898 used for?

Port 2898 is assigned by IANA to appliance-cfg (APPLIANCE-CFG).

Is port 2898 TCP or UDP?

Port 2898 is registered for TCP and UDP.

Is it safe to open port 2898?

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 2898 is open?

On Linux run "ss -ltnup 'sport = :2898'", on macOS "lsof -nP -i :2898", and on Windows "netstat -ano | findstr :2898" to see the local process. From another machine, "nmap -p 2898 <host>" shows whether it is reachable.

05 Related
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