CyberHunter
Local dataset, no network
// Other services

Port 2796: ac-tech

Port 2796 is assigned by IANA to ac-tech (ac-tech).

2796

How ac-tech works

Other services
client:2796ac-techresponse client:2796ac-techresponse

The client sends a request to port 2796 and the ac-tech 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 2796 dangerous?

We have no specific security note for port 2796. 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 2796

ServicePortTransportDescriptionReferenceUpdated
ac-tech 2796 TCP, UDP ac-tech - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2796, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2796'      # process listening on 2796
sudo lsof -nP -i :2796

macOS

sudo lsof -nP -i :2796

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2796 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2796
netstat -ano | findstr :2796

From another machine

nmap -p 2796 -sV <host>
sudo nmap -sU -p 2796 <host>
nc -zv <host> 2796

Block it in the firewall

sudo ufw deny 2796/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2796" -Direction Inbound -LocalPort 2796 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2796 used for?

Port 2796 is assigned by IANA to ac-tech (ac-tech).

Is port 2796 TCP or UDP?

Port 2796 is registered for TCP and UDP.

Is it safe to open port 2796?

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 2796 is open?

On Linux run "ss -ltnup 'sport = :2796'", on macOS "lsof -nP -i :2796", and on Windows "netstat -ano | findstr :2796" to see the local process. From another machine, "nmap -p 2796 <host>" shows whether it is reachable.

05 Related
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