- 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 4902: magicCONROL RF and Data Interface
Port 4902 is assigned by IANA to magiccontrol (magicCONROL RF and Data Interface).
4902
How magiccontrol works
Other servicesThe client sends a request to port 4902 and the magiccontrol 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)
- Category
- Other services
Is port 4902 dangerous?
We have no specific security note for port 4902. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 4902
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| magiccontrol | 4902 | TCP | magicCONROL RF and Data Interface | - | 2008-11-24 |
| - | 4902 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 4902, and is it reachable?
Linux
sudo ss -ltnup 'sport = :4902' # process listening on 4902
sudo lsof -nP -i :4902macOS
sudo lsof -nP -i :4902
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 4902 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 4902 netstat -ano | findstr :4902
From another machine
nmap -p 4902 -sV <host> nc -zv <host> 4902
Block it in the firewall
sudo ufw deny 4902/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 4902" -Direction Inbound -LocalPort 4902 -Protocol TCP -Action Block # Windows
What is port 4902 used for?
Port 4902 is assigned by IANA to magiccontrol (magicCONROL RF and Data Interface).
Is port 4902 TCP or UDP?
Port 4902 is registered for TCP.
Is it safe to open port 4902?
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 4902 is open?
On Linux run "ss -ltnup 'sport = :4902'", on macOS "lsof -nP -i :4902", and on Windows "netstat -ano | findstr :4902" to see the local process. From another machine, "nmap -p 4902 <host>" shows whether it is reachable.
Other other services ports
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