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Port 5136 (minotaur-sa)

IANA assigns port 5136 to minotaur-sa: Minotaur SA.

Registered (user) port, 1024-49151 UDP

Port 5136 is normally used over UDP; the checker tests TCP only, so a "filtered" result does not mean the UDP service is down.

IANA assignment

Service nameProtoDescriptionAssigneeReference
minotaur-sa UDP Minotaur SA Kenneth Flynn -

Registry dates for this port: registered 2009-10-14.

Check what is listening on port 5136

Linux: UDP 5136
sudo ss -ulnp 'sport = :5136'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5136
Windows (Command Prompt)
netstat -ano | findstr :5136
Windows (PowerShell)
Get-NetUDPEndpoint -LocalPort 5136

Test it from outside

UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 5136

Block port 5136 in the firewall

ufw
sudo ufw deny 5136/udp
iptables
sudo iptables -A INPUT -p udp --dport 5136 -j DROP
nftables
sudo nft add rule inet filter input udp dport 5136 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 5136' -Direction Inbound -Protocol UDP -LocalPort 5136 -Action Block

Related ports

5134ppactivation5135erp-scale5137ctsd5145rmonitor-secure, rmonitor_secure

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