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// Other services

Port 1982: Evidentiary Timestamp

Port 1982 is assigned by IANA to estamp (Evidentiary Timestamp).

1982

How estamp works

Other services
client:1982estampresponse client:1982estampresponse

The client sends a request to port 1982 and the estamp 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 1982 dangerous?

We have no specific security note for port 1982. 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 1982

ServicePortTransportDescriptionReferenceUpdated
estamp 1982 TCP, UDP Evidentiary Timestamp - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1982, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1982'      # process listening on 1982
sudo lsof -nP -i :1982

macOS

sudo lsof -nP -i :1982

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1982 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1982
netstat -ano | findstr :1982

From another machine

nmap -p 1982 -sV <host>
sudo nmap -sU -p 1982 <host>
nc -zv <host> 1982

Block it in the firewall

sudo ufw deny 1982/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1982" -Direction Inbound -LocalPort 1982 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1982 used for?

Port 1982 is assigned by IANA to estamp (Evidentiary Timestamp).

Is port 1982 TCP or UDP?

Port 1982 is registered for TCP and UDP.

Is it safe to open port 1982?

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 1982 is open?

On Linux run "ss -ltnup 'sport = :1982'", on macOS "lsof -nP -i :1982", and on Windows "netstat -ano | findstr :1982" to see the local process. From another machine, "nmap -p 1982 <host>" shows whether it is reachable.

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