HTTPfy

Port 1744 (ncpm-ft)

IANA assigns port 1744 to ncpm-ft.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
ncpm-ft TCP ncpm-ft Ken Hearn -
ncpm-ft UDP ncpm-ft Ken Hearn -

Check what is listening on port 1744

Linux: is anything listening on TCP 1744?
sudo ss -tlnp 'sport = :1744'
Linux: UDP 1744
sudo ss -ulnp 'sport = :1744'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1744
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1744 '
Windows (Command Prompt)
netstat -ano | findstr :1744
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1744 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1744
From Windows
Test-NetConnection HOST -Port 1744
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1744

Block port 1744 in the firewall

ufw
sudo ufw deny 1744/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1744 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1744 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1744' -Direction Inbound -Protocol TCP -LocalPort 1744 -Action Block
ufw
sudo ufw deny 1744/udp
iptables
sudo iptables -A INPUT -p udp --dport 1744 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1744 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1744' -Direction Inbound -Protocol UDP -LocalPort 1744 -Action Block

Related ports

17423Com-nsd1743cinegrfx-lm1745remote-winsock1746ftrapid-1

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