CyberHunter
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// Other services

Port 2581: ARGIS TE

Port 2581 is assigned by IANA to argis-te (ARGIS TE).

2581

How argis-te works

Other services
client:2581argis-teresponse client:2581argis-teresponse

The client sends a request to port 2581 and the argis-te 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 2581 dangerous?

We have no specific security note for port 2581. 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 2581

ServicePortTransportDescriptionReferenceUpdated
argis-te 2581 TCP, UDP ARGIS TE - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2581, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2581'      # process listening on 2581
sudo lsof -nP -i :2581

macOS

sudo lsof -nP -i :2581

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2581 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2581
netstat -ano | findstr :2581

From another machine

nmap -p 2581 -sV <host>
sudo nmap -sU -p 2581 <host>
nc -zv <host> 2581

Block it in the firewall

sudo ufw deny 2581/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2581" -Direction Inbound -LocalPort 2581 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2581 used for?

Port 2581 is assigned by IANA to argis-te (ARGIS TE).

Is port 2581 TCP or UDP?

Port 2581 is registered for TCP and UDP.

Is it safe to open port 2581?

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 2581 is open?

On Linux run "ss -ltnup 'sport = :2581'", on macOS "lsof -nP -i :2581", and on Windows "netstat -ano | findstr :2581" to see the local process. From another machine, "nmap -p 2581 <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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