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// Other services

Port 4199: EIMS ADMIN

Port 4199 is assigned by IANA to eims-admin (EIMS ADMIN).

4199

How eims-admin works

Other services
client:4199eims-adminresponse client:4199eims-adminresponse

The client sends a request to port 4199 and the eims-admin 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 4199 dangerous?

We have no specific security note for port 4199. 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 4199

ServicePortTransportDescriptionReferenceUpdated
eims-admin 4199 TCP, UDP EIMS ADMIN - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 4199, and is it reachable?

Linux

sudo ss -ltnup 'sport = :4199'      # process listening on 4199
sudo lsof -nP -i :4199

macOS

sudo lsof -nP -i :4199

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 4199 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 4199
netstat -ano | findstr :4199

From another machine

nmap -p 4199 -sV <host>
sudo nmap -sU -p 4199 <host>
nc -zv <host> 4199

Block it in the firewall

sudo ufw deny 4199/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 4199" -Direction Inbound -LocalPort 4199 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 4199 used for?

Port 4199 is assigned by IANA to eims-admin (EIMS ADMIN).

Is port 4199 TCP or UDP?

Port 4199 is registered for TCP and UDP.

Is it safe to open port 4199?

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 4199 is open?

On Linux run "ss -ltnup 'sport = :4199'", on macOS "lsof -nP -i :4199", and on Windows "netstat -ano | findstr :4199" to see the local process. From another machine, "nmap -p 4199 <host>" shows whether it is reachable.

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