CyberHunter
Local dataset, no network
// Other services

Port 5597: inin secure messaging

Port 5597 is assigned by IANA to ininmessaging (inin secure messaging).

5597

How ininmessaging works

Other services
client:5597ininmessagingresponse client:5597ininmessagingresponse

The client sends a request to port 5597 and the ininmessaging 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 5597 dangerous?

We have no specific security note for port 5597. 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 5597

ServicePortTransportDescriptionReferenceUpdated
ininmessaging 5597 TCP, UDP inin secure messaging - 2006-05

// source: IANA service name and port number registry

03 Check it

Which program uses port 5597, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5597'      # process listening on 5597
sudo lsof -nP -i :5597

macOS

sudo lsof -nP -i :5597

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5597 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5597
netstat -ano | findstr :5597

From another machine

nmap -p 5597 -sV <host>
sudo nmap -sU -p 5597 <host>
nc -zv <host> 5597

Block it in the firewall

sudo ufw deny 5597/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5597" -Direction Inbound -LocalPort 5597 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5597 used for?

Port 5597 is assigned by IANA to ininmessaging (inin secure messaging).

Is port 5597 TCP or UDP?

Port 5597 is registered for TCP and UDP.

Is it safe to open port 5597?

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 5597 is open?

On Linux run "ss -ltnup 'sport = :5597'", on macOS "lsof -nP -i :5597", and on Windows "netstat -ano | findstr :5597" to see the local process. From another machine, "nmap -p 5597 <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

Latest vulnerability news

All news