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Port 1576 (moldflow-lm)

IANA assigns port 1576 to moldflow-lm: Moldflow License Manager.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
moldflow-lm TCP Moldflow License Manager Lech Laskowski -
moldflow-lm UDP Moldflow License Manager Lech Laskowski -

Check what is listening on port 1576

Linux: is anything listening on TCP 1576?
sudo ss -tlnp 'sport = :1576'
Linux: UDP 1576
sudo ss -ulnp 'sport = :1576'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1576
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1576 '
Windows (Command Prompt)
netstat -ano | findstr :1576
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1576 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1576
From Windows
Test-NetConnection HOST -Port 1576
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1576

Block port 1576 in the firewall

ufw
sudo ufw deny 1576/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1576 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1576 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1576' -Direction Inbound -Protocol TCP -LocalPort 1576 -Action Block
ufw
sudo ufw deny 1576/udp
iptables
sudo iptables -A INPUT -p udp --dport 1576 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1576 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1576' -Direction Inbound -Protocol UDP -LocalPort 1576 -Action Block

Related ports

1574mvel-lm1575oraclenames1577hypercube-lm1578jacobus-lm

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