CyberHunter
Local dataset, no network
// Other services

Port 5427: SCO-PEER-TTA

Port 5427 is assigned by IANA to sco-peer-tta (SCO-PEER-TTA).

5427

How sco-peer-tta works

Other services
client:5427sco-peer-ttaresponse client:5427sco-peer-ttaresponse

The client sends a request to port 5427 and the sco-peer-tta 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 5427 dangerous?

We have no specific security note for port 5427. 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 5427

ServicePortTransportDescriptionReferenceUpdated
sco-peer-tta 5427 TCP, UDP SCO-PEER-TTA - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 5427, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5427'      # process listening on 5427
sudo lsof -nP -i :5427

macOS

sudo lsof -nP -i :5427

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5427 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5427
netstat -ano | findstr :5427

From another machine

nmap -p 5427 -sV <host>
sudo nmap -sU -p 5427 <host>
nc -zv <host> 5427

Block it in the firewall

sudo ufw deny 5427/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5427" -Direction Inbound -LocalPort 5427 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5427 used for?

Port 5427 is assigned by IANA to sco-peer-tta (SCO-PEER-TTA).

Is port 5427 TCP or UDP?

Port 5427 is registered for TCP and UDP.

Is it safe to open port 5427?

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 5427 is open?

On Linux run "ss -ltnup 'sport = :5427'", on macOS "lsof -nP -i :5427", and on Windows "netstat -ano | findstr :5427" to see the local process. From another machine, "nmap -p 5427 <host>" shows whether it is reachable.

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