CyberHunter
Local dataset, no network
// Other services

Port 9345: Rancher Agent

Port 9345 is assigned by IANA to rancher (Rancher Agent).

9345

How rancher works

Other services
client:9345rancherresponse client:9345rancherresponse

The client sends a request to port 9345 and the rancher service answers.

Transport
TCP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
01 Security

Is port 9345 dangerous?

We have no specific security note for port 9345. 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 9345

ServicePortTransportDescriptionReferenceUpdated
rancher 9345 TCP Rancher Agent - 2015-04-14
-9345-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 9345, and is it reachable?

Linux

sudo ss -ltnup 'sport = :9345'      # process listening on 9345
sudo lsof -nP -i :9345

macOS

sudo lsof -nP -i :9345

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 9345 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 9345
netstat -ano | findstr :9345

From another machine

nmap -p 9345 -sV <host>
nc -zv <host> 9345

Block it in the firewall

sudo ufw deny 9345/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 9345" -Direction Inbound -LocalPort 9345 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 9345 used for?

Port 9345 is assigned by IANA to rancher (Rancher Agent).

Is port 9345 TCP or UDP?

Port 9345 is registered for TCP.

Is it safe to open port 9345?

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 9345 is open?

On Linux run "ss -ltnup 'sport = :9345'", on macOS "lsof -nP -i :9345", and on Windows "netstat -ano | findstr :9345" to see the local process. From another machine, "nmap -p 9345 <host>" shows whether it is reachable.

05 Related

Latest vulnerability news

All news