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// Other services

Port 1105: FTRANHC

Port 1105 is assigned by IANA to ftranhc (FTRANHC).

1105

How ftranhc works

Other services
client:1105ftranhcresponse client:1105ftranhcresponse

The client sends a request to port 1105 and the ftranhc 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 1105 dangerous?

We have no specific security note for port 1105. 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 1105

ServicePortTransportDescriptionReferenceUpdated
ftranhc 1105 TCP, UDP FTRANHC - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1105, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1105'      # process listening on 1105
sudo lsof -nP -i :1105

macOS

sudo lsof -nP -i :1105

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1105 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1105
netstat -ano | findstr :1105

From another machine

nmap -p 1105 -sV <host>
sudo nmap -sU -p 1105 <host>
nc -zv <host> 1105

Block it in the firewall

sudo ufw deny 1105/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1105" -Direction Inbound -LocalPort 1105 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1105 used for?

Port 1105 is assigned by IANA to ftranhc (FTRANHC).

Is port 1105 TCP or UDP?

Port 1105 is registered for TCP and UDP.

Is it safe to open port 1105?

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 1105 is open?

On Linux run "ss -ltnup 'sport = :1105'", on macOS "lsof -nP -i :1105", and on Windows "netstat -ano | findstr :1105" to see the local process. From another machine, "nmap -p 1105 <host>" shows whether it is reachable.

05 Related
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