Port 2371 (rda)

IANA assigns port 2371 to rda: Remote Device Access.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference

rda TCP Remote Device Access Hewlett Packard Enterprise 2 -

Registry dates for this port: last modified 2018-11-05.

Linux: is anything listening on TCP 2371?

sudo ss -tlnp 'sport = :2371'

Linux / macOS: which process owns the port

sudo lsof -nP -i :2371

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':2371 '

Windows (Command Prompt)

netstat -ano | findstr :2371

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2371 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 2371

From Windows

Test-NetConnection HOST -Port 2371

ufw

sudo ufw deny 2371/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 2371 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 2371 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 2371' -Direction Inbound -Protocol TCP -LocalPort 2371 -Action Block

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