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Port 27010 (flex-lmadmin)

IANA assigns port 27010 to flex-lmadmin: A protocol for managing license services.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
flex-lmadmin TCP A protocol for managing license services Flexera -

Registry dates for this port: registered 2018-08-22.

Check what is listening on port 27010

Linux: is anything listening on TCP 27010?
sudo ss -tlnp 'sport = :27010'
Linux / macOS: which process owns the port
sudo lsof -nP -i :27010
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':27010 '
Windows (Command Prompt)
netstat -ano | findstr :27010
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 27010 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 27010
From Windows
Test-NetConnection HOST -Port 27010

Block port 27010 in the firewall

ufw
sudo ufw deny 27010/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 27010 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 27010 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 27010' -Direction Inbound -Protocol TCP -LocalPort 27010 -Action Block

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