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// Other services

Port 262: Arcisdms

Port 262 is assigned by IANA to arcisdms (Arcisdms).

262

How arcisdms works

Other services
client:262arcisdmsresponse client:262arcisdmsresponse

The client sends a request to port 262 and the arcisdms 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
Well-known (0-1023)
Category
Other services
01 Security

Is port 262 dangerous?

We have no specific security note for port 262. 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 262

ServicePortTransportDescriptionReferenceUpdated
arcisdms 262 TCP, UDP Arcisdms - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 262, and is it reachable?

Linux

sudo ss -ltnup 'sport = :262'      # process listening on 262
sudo lsof -nP -i :262

macOS

sudo lsof -nP -i :262

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 262 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 262
netstat -ano | findstr :262

From another machine

nmap -p 262 -sV <host>
sudo nmap -sU -p 262 <host>
nc -zv <host> 262

Block it in the firewall

sudo ufw deny 262/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 262" -Direction Inbound -LocalPort 262 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 262 used for?

Port 262 is assigned by IANA to arcisdms (Arcisdms).

Is port 262 TCP or UDP?

Port 262 is registered for TCP and UDP.

Is it safe to open port 262?

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 262 is open?

On Linux run "ss -ltnup 'sport = :262'", on macOS "lsof -nP -i :262", and on Windows "netstat -ano | findstr :262" to see the local process. From another machine, "nmap -p 262 <host>" shows whether it is reachable.

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