Port 10004 (emcrmirccd)

IANA assigns port 10004 to emcrmirccd: EMC Replication Manager Client.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference

emcrmirccd TCP EMC Replication Manager Client Robert Boudrie -

Registry dates for this port: registered 2008-06-09.

Linux: is anything listening on TCP 10004?

sudo ss -tlnp 'sport = :10004'

Linux / macOS: which process owns the port

sudo lsof -nP -i :10004

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':10004 '

Windows (Command Prompt)

netstat -ano | findstr :10004

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 10004 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 10004

From Windows

Test-NetConnection HOST -Port 10004

ufw

sudo ufw deny 10004/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 10004 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 10004 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 10004' -Direction Inbound -Protocol TCP -LocalPort 10004 -Action Block

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