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// Other services

Port 1176: Indigo Home Server

Port 1176 is assigned by IANA to indigo-server (Indigo Home Server).

1176

How indigo-server works

Other services
client:1176indigo-serverresponse client:1176indigo-serverresponse

The client sends a request to port 1176 and the indigo-server 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 1176 dangerous?

We have no specific security note for port 1176. 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 1176

ServicePortTransportDescriptionReferenceUpdated
indigo-server 1176 TCP, UDP Indigo Home Server - 2004-11

// source: IANA service name and port number registry

03 Check it

Which program uses port 1176, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1176'      # process listening on 1176
sudo lsof -nP -i :1176

macOS

sudo lsof -nP -i :1176

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1176 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1176
netstat -ano | findstr :1176

From another machine

nmap -p 1176 -sV <host>
sudo nmap -sU -p 1176 <host>
nc -zv <host> 1176

Block it in the firewall

sudo ufw deny 1176/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1176" -Direction Inbound -LocalPort 1176 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1176 used for?

Port 1176 is assigned by IANA to indigo-server (Indigo Home Server).

Is port 1176 TCP or UDP?

Port 1176 is registered for TCP and UDP.

Is it safe to open port 1176?

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 1176 is open?

On Linux run "ss -ltnup 'sport = :1176'", on macOS "lsof -nP -i :1176", and on Windows "netstat -ano | findstr :1176" to see the local process. From another machine, "nmap -p 1176 <host>" shows whether it is reachable.

05 Related
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