- 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.
Port 3458: D3WinOSFI
Port 3458 is assigned by IANA to d3winosfi (D3WinOSFI).
How d3winosfi works
Other servicesThe client sends a request to port 3458 and the d3winosfi 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
Is port 3458 dangerous?
We have no specific security note for port 3458. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 3458
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| d3winosfi | 3458 | TCP, UDP | D3WinOSFI | - | - |
// source: IANA service name and port number registry
Which program uses port 3458, and is it reachable?
Linux
sudo ss -ltnup 'sport = :3458' # process listening on 3458
sudo lsof -nP -i :3458macOS
sudo lsof -nP -i :3458
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3458 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 3458 netstat -ano | findstr :3458
From another machine
nmap -p 3458 -sV <host> sudo nmap -sU -p 3458 <host> nc -zv <host> 3458
Block it in the firewall
sudo ufw deny 3458/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 3458" -Direction Inbound -LocalPort 3458 -Protocol TCP -Action Block # Windows
What is port 3458 used for?
Port 3458 is assigned by IANA to d3winosfi (D3WinOSFI).
Is port 3458 TCP or UDP?
Port 3458 is registered for TCP and UDP.
Is it safe to open port 3458?
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 3458 is open?
On Linux run "ss -ltnup 'sport = :3458'", on macOS "lsof -nP -i :3458", and on Windows "netstat -ano | findstr :3458" to see the local process. From another machine, "nmap -p 3458 <host>" shows whether it is reachable.