CyberHunter
Local dataset, no network
// Other services

Port 1798: Event Transfer Protocol

Port 1798 is assigned by IANA to etp (Event Transfer Protocol).

1798

How etp works

Other services
client:1798etpresponse client:1798etpresponse

The client sends a request to port 1798 and the etp 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 1798 dangerous?

We have no specific security note for port 1798. 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 1798

ServicePortTransportDescriptionReferenceUpdated
etp 1798 TCP, UDP Event Transfer Protocol - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1798, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1798'      # process listening on 1798
sudo lsof -nP -i :1798

macOS

sudo lsof -nP -i :1798

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1798 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1798
netstat -ano | findstr :1798

From another machine

nmap -p 1798 -sV <host>
sudo nmap -sU -p 1798 <host>
nc -zv <host> 1798

Block it in the firewall

sudo ufw deny 1798/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1798" -Direction Inbound -LocalPort 1798 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1798 used for?

Port 1798 is assigned by IANA to etp (Event Transfer Protocol).

Is port 1798 TCP or UDP?

Port 1798 is registered for TCP and UDP.

Is it safe to open port 1798?

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 1798 is open?

On Linux run "ss -ltnup 'sport = :1798'", on macOS "lsof -nP -i :1798", and on Windows "netstat -ano | findstr :1798" to see the local process. From another machine, "nmap -p 1798 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

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