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Port 46999 (mediabox)

IANA assigns port 46999 to mediabox: MediaBox Server.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
mediabox TCP MediaBox Server Alexander Graef -
mediabox UDP MediaBox Server Alexander Graef -

Registry dates for this port: registered 2004-11.

Check what is listening on port 46999

Linux: is anything listening on TCP 46999?
sudo ss -tlnp 'sport = :46999'
Linux: UDP 46999
sudo ss -ulnp 'sport = :46999'
Linux / macOS: which process owns the port
sudo lsof -nP -i :46999
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':46999 '
Windows (Command Prompt)
netstat -ano | findstr :46999
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 46999 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 46999
From Windows
Test-NetConnection HOST -Port 46999
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 46999

Block port 46999 in the firewall

ufw
sudo ufw deny 46999/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 46999 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 46999 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 46999' -Direction Inbound -Protocol TCP -LocalPort 46999 -Action Block
ufw
sudo ufw deny 46999/udp
iptables
sudo iptables -A INPUT -p udp --dport 46999 -j DROP
nftables
sudo nft add rule inet filter input udp dport 46999 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 46999' -Direction Inbound -Protocol UDP -LocalPort 46999 -Action Block

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