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Port 1577 (hypercube-lm)

IANA assigns port 1577 to hypercube-lm.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
hypercube-lm TCP hypercube-lm Christopher McLendon -
hypercube-lm UDP hypercube-lm Christopher McLendon -

Check what is listening on port 1577

Linux: is anything listening on TCP 1577?
sudo ss -tlnp 'sport = :1577'
Linux: UDP 1577
sudo ss -ulnp 'sport = :1577'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1577
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1577 '
Windows (Command Prompt)
netstat -ano | findstr :1577
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1577 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1577
From Windows
Test-NetConnection HOST -Port 1577
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1577

Block port 1577 in the firewall

ufw
sudo ufw deny 1577/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1577 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1577 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1577' -Direction Inbound -Protocol TCP -LocalPort 1577 -Action Block
ufw
sudo ufw deny 1577/udp
iptables
sudo iptables -A INPUT -p udp --dport 1577 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1577 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1577' -Direction Inbound -Protocol UDP -LocalPort 1577 -Action Block

Related ports

1575oraclenames1576moldflow-lm1578jacobus-lm1579ioc-sea-lm

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