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Port 4902 (magiccontrol)

IANA assigns port 4902 to magiccontrol: magicCONROL RF and Data Interface.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
magiccontrol TCP magicCONROL RF and Data Interface Andreas Spalenski -

Registry dates for this port: registered 2008-11-24.

Check what is listening on port 4902

Linux: is anything listening on TCP 4902?
sudo ss -tlnp 'sport = :4902'
Linux / macOS: which process owns the port
sudo lsof -nP -i :4902
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':4902 '
Windows (Command Prompt)
netstat -ano | findstr :4902
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 4902 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 4902
From Windows
Test-NetConnection HOST -Port 4902

Block port 4902 in the firewall

ufw
sudo ufw deny 4902/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 4902 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 4902 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 4902' -Direction Inbound -Protocol TCP -LocalPort 4902 -Action Block

Related ports

4900hfcs4901flr-agent, flr_agent4912lutap4913lutcp

All port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.