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Port 1284 (iee-qfx)

IANA assigns port 1284 to iee-qfx: IEE-QFX.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
iee-qfx TCP IEE-QFX Mehrdad Ashtiani -
iee-qfx UDP IEE-QFX Mehrdad Ashtiani -

Registry dates for this port: registered 2009-10-19.

Check what is listening on port 1284

Linux: is anything listening on TCP 1284?
sudo ss -tlnp 'sport = :1284'
Linux: UDP 1284
sudo ss -ulnp 'sport = :1284'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1284
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1284 '
Windows (Command Prompt)
netstat -ano | findstr :1284
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1284 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1284
From Windows
Test-NetConnection HOST -Port 1284
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1284

Block port 1284 in the firewall

ufw
sudo ufw deny 1284/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1284 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1284 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1284' -Direction Inbound -Protocol TCP -LocalPort 1284 -Action Block
ufw
sudo ufw deny 1284/udp
iptables
sudo iptables -A INPUT -p udp --dport 1284 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1284 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1284' -Direction Inbound -Protocol UDP -LocalPort 1284 -Action Block

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.