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// Other services

Port 1860: SunSCALAR Services

Port 1860 is assigned by IANA to sunscalar-svc (SunSCALAR Services).

1860

How sunscalar-svc works

Other services
client:1860sunscalar-svcresponse client:1860sunscalar-svcresponse

The client sends a request to port 1860 and the sunscalar-svc 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 1860 dangerous?

We have no specific security note for port 1860. 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 1860

ServicePortTransportDescriptionReferenceUpdated
sunscalar-svc 1860 TCP, UDP SunSCALAR Services - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1860, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1860'      # process listening on 1860
sudo lsof -nP -i :1860

macOS

sudo lsof -nP -i :1860

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1860 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1860
netstat -ano | findstr :1860

From another machine

nmap -p 1860 -sV <host>
sudo nmap -sU -p 1860 <host>
nc -zv <host> 1860

Block it in the firewall

sudo ufw deny 1860/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1860" -Direction Inbound -LocalPort 1860 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1860 used for?

Port 1860 is assigned by IANA to sunscalar-svc (SunSCALAR Services).

Is port 1860 TCP or UDP?

Port 1860 is registered for TCP and UDP.

Is it safe to open port 1860?

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 1860 is open?

On Linux run "ss -ltnup 'sport = :1860'", on macOS "lsof -nP -i :1860", and on Windows "netstat -ano | findstr :1860" to see the local process. From another machine, "nmap -p 1860 <host>" shows whether it is reachable.

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