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// Other services

Port 2783: AISES

Port 2783 is assigned by IANA to aises (AISES).

2783

How aises works

Other services
client:2783aisesresponse client:2783aisesresponse

The client sends a request to port 2783 and the aises 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 2783 dangerous?

We have no specific security note for port 2783. 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 2783

ServicePortTransportDescriptionReferenceUpdated
aises 2783 TCP, UDP AISES - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2783, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2783'      # process listening on 2783
sudo lsof -nP -i :2783

macOS

sudo lsof -nP -i :2783

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2783 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2783
netstat -ano | findstr :2783

From another machine

nmap -p 2783 -sV <host>
sudo nmap -sU -p 2783 <host>
nc -zv <host> 2783

Block it in the firewall

sudo ufw deny 2783/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2783" -Direction Inbound -LocalPort 2783 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2783 used for?

Port 2783 is assigned by IANA to aises (AISES).

Is port 2783 TCP or UDP?

Port 2783 is registered for TCP and UDP.

Is it safe to open port 2783?

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 2783 is open?

On Linux run "ss -ltnup 'sport = :2783'", on macOS "lsof -nP -i :2783", and on Windows "netstat -ano | findstr :2783" to see the local process. From another machine, "nmap -p 2783 <host>" shows whether it is reachable.

05 Related
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