CyberHunter
Local dataset, no network
// Other services

Port 1185: Catchpole port

Port 1185 is assigned by IANA to catchpole (Catchpole port).

1185

How catchpole works

Other services
client:1185catchpoleresponse client:1185catchpoleresponse

The client sends a request to port 1185 and the catchpole 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)
01 Security

Is port 1185 dangerous?

We have no specific security note for port 1185. 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 1185

ServicePortTransportDescriptionReferenceUpdated
catchpole 1185 TCP, UDP Catchpole port - 2002-03

// source: IANA service name and port number registry

03 Check it

Which program uses port 1185, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1185'      # process listening on 1185
sudo lsof -nP -i :1185

macOS

sudo lsof -nP -i :1185

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1185 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1185
netstat -ano | findstr :1185

From another machine

nmap -p 1185 -sV <host>
sudo nmap -sU -p 1185 <host>
nc -zv <host> 1185

Block it in the firewall

sudo ufw deny 1185/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1185" -Direction Inbound -LocalPort 1185 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1185 used for?

Port 1185 is assigned by IANA to catchpole (Catchpole port).

Is port 1185 TCP or UDP?

Port 1185 is registered for TCP and UDP.

Is it safe to open port 1185?

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 1185 is open?

On Linux run "ss -ltnup 'sport = :1185'", on macOS "lsof -nP -i :1185", and on Windows "netstat -ano | findstr :1185" to see the local process. From another machine, "nmap -p 1185 <host>" shows whether it is reachable.

05 Related

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