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// Other services

Port 1210: EOSS

Port 1210 is assigned by IANA to eoss (EOSS).

1210

How eoss works

Other services
client:1210eossresponse client:1210eossresponse

The client sends a request to port 1210 and the eoss 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 1210 dangerous?

We have no specific security note for port 1210. 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 1210

ServicePortTransportDescriptionReferenceUpdated
eoss 1210 TCP, UDP EOSS - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1210, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1210'      # process listening on 1210
sudo lsof -nP -i :1210

macOS

sudo lsof -nP -i :1210

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1210 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1210
netstat -ano | findstr :1210

From another machine

nmap -p 1210 -sV <host>
sudo nmap -sU -p 1210 <host>
nc -zv <host> 1210

Block it in the firewall

sudo ufw deny 1210/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1210" -Direction Inbound -LocalPort 1210 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1210 used for?

Port 1210 is assigned by IANA to eoss (EOSS).

Is port 1210 TCP or UDP?

Port 1210 is registered for TCP and UDP.

Is it safe to open port 1210?

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 1210 is open?

On Linux run "ss -ltnup 'sport = :1210'", on macOS "lsof -nP -i :1210", and on Windows "netstat -ano | findstr :1210" to see the local process. From another machine, "nmap -p 1210 <host>" shows whether it is reachable.

05 Related
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