CyberHunter
Local dataset, no network
// Other services

Port 1244: isbconference1

Port 1244 is assigned by IANA to isbconference1 (isbconference1).

1244

How isbconference1 works

Other services
client:1244isbconference1response client:1244isbconference1response

The client sends a request to port 1244 and the isbconference1 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 1244 dangerous?

We have no specific security note for port 1244. 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 1244

ServicePortTransportDescriptionReferenceUpdated
isbconference1 1244 TCP, UDP isbconference1 - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1244, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1244'      # process listening on 1244
sudo lsof -nP -i :1244

macOS

sudo lsof -nP -i :1244

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1244 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1244
netstat -ano | findstr :1244

From another machine

nmap -p 1244 -sV <host>
sudo nmap -sU -p 1244 <host>
nc -zv <host> 1244

Block it in the firewall

sudo ufw deny 1244/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1244" -Direction Inbound -LocalPort 1244 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1244 used for?

Port 1244 is assigned by IANA to isbconference1 (isbconference1).

Is port 1244 TCP or UDP?

Port 1244 is registered for TCP and UDP.

Is it safe to open port 1244?

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 1244 is open?

On Linux run "ss -ltnup 'sport = :1244'", on macOS "lsof -nP -i :1244", and on Windows "netstat -ano | findstr :1244" to see the local process. From another machine, "nmap -p 1244 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

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