CyberHunter
Local dataset, no network
// Other services

Port 1245: isbconference2

Port 1245 is assigned by IANA to isbconference2 (isbconference2).

1245

How isbconference2 works

Other services
client:1245isbconference2response client:1245isbconference2response

The client sends a request to port 1245 and the isbconference2 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 1245 dangerous?

We have no specific security note for port 1245. 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 1245

ServicePortTransportDescriptionReferenceUpdated
isbconference2 1245 TCP, UDP isbconference2 - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1245, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1245'      # process listening on 1245
sudo lsof -nP -i :1245

macOS

sudo lsof -nP -i :1245

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1245 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1245
netstat -ano | findstr :1245

From another machine

nmap -p 1245 -sV <host>
sudo nmap -sU -p 1245 <host>
nc -zv <host> 1245

Block it in the firewall

sudo ufw deny 1245/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1245" -Direction Inbound -LocalPort 1245 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1245 used for?

Port 1245 is assigned by IANA to isbconference2 (isbconference2).

Is port 1245 TCP or UDP?

Port 1245 is registered for TCP and UDP.

Is it safe to open port 1245?

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 1245 is open?

On Linux run "ss -ltnup 'sport = :1245'", on macOS "lsof -nP -i :1245", and on Windows "netstat -ano | findstr :1245" to see the local process. From another machine, "nmap -p 1245 <host>" shows whether it is reachable.

05 Related
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