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// Other services

Port 7542: Saratoga Transfer Protocol

Port 7542 is assigned by IANA to saratoga (Saratoga Transfer Protocol).

7542

How saratoga works

Other services
client:7542saratogaresponse client:7542saratogaresponse

The client sends a request to port 7542 and the saratoga 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 7542 dangerous?

We have no specific security note for port 7542. 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 7542

ServicePortTransportDescriptionReferenceUpdated
saratoga 7542 TCP, UDP Saratoga Transfer Protocol - 2007-05

// source: IANA service name and port number registry

03 Check it

Which program uses port 7542, and is it reachable?

Linux

sudo ss -ltnup 'sport = :7542'      # process listening on 7542
sudo lsof -nP -i :7542

macOS

sudo lsof -nP -i :7542

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 7542 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 7542
netstat -ano | findstr :7542

From another machine

nmap -p 7542 -sV <host>
sudo nmap -sU -p 7542 <host>
nc -zv <host> 7542

Block it in the firewall

sudo ufw deny 7542/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 7542" -Direction Inbound -LocalPort 7542 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 7542 used for?

Port 7542 is assigned by IANA to saratoga (Saratoga Transfer Protocol).

Is port 7542 TCP or UDP?

Port 7542 is registered for TCP and UDP.

Is it safe to open port 7542?

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 7542 is open?

On Linux run "ss -ltnup 'sport = :7542'", on macOS "lsof -nP -i :7542", and on Windows "netstat -ano | findstr :7542" to see the local process. From another machine, "nmap -p 7542 <host>" shows whether it is reachable.

05 Related
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