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// Other services

Port 5600: Enterprise Security Manager

Port 5600 is assigned by IANA to esmmanager (Enterprise Security Manager).

5600

How esmmanager works

Other services
client:5600esmmanagerresponse client:5600esmmanagerresponse

The client sends a request to port 5600 and the esmmanager 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 5600 dangerous?

We have no specific security note for port 5600. 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 5600

ServicePortTransportDescriptionReferenceUpdated
esmmanager 5600 TCP, UDP Enterprise Security Manager - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 5600, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5600'      # process listening on 5600
sudo lsof -nP -i :5600

macOS

sudo lsof -nP -i :5600

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5600 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5600
netstat -ano | findstr :5600

From another machine

nmap -p 5600 -sV <host>
sudo nmap -sU -p 5600 <host>
nc -zv <host> 5600

Block it in the firewall

sudo ufw deny 5600/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5600" -Direction Inbound -LocalPort 5600 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5600 used for?

Port 5600 is assigned by IANA to esmmanager (Enterprise Security Manager).

Is port 5600 TCP or UDP?

Port 5600 is registered for TCP and UDP.

Is it safe to open port 5600?

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 5600 is open?

On Linux run "ss -ltnup 'sport = :5600'", on macOS "lsof -nP -i :5600", and on Windows "netstat -ano | findstr :5600" to see the local process. From another machine, "nmap -p 5600 <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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