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Port 3604 (bmc-jmx-port)

IANA assigns port 3604 to bmc-jmx-port: BMC JMX Port.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
bmc-jmx-port TCP BMC JMX Port Portnoy Boxman -
bmc-jmx-port UDP BMC JMX Port Portnoy Boxman -

Registry dates for this port: registered 2002-09.

Check what is listening on port 3604

Linux: is anything listening on TCP 3604?
sudo ss -tlnp 'sport = :3604'
Linux: UDP 3604
sudo ss -ulnp 'sport = :3604'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3604
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3604 '
Windows (Command Prompt)
netstat -ano | findstr :3604
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3604 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3604
From Windows
Test-NetConnection HOST -Port 3604
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3604

Block port 3604 in the firewall

ufw
sudo ufw deny 3604/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3604 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3604 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3604' -Direction Inbound -Protocol TCP -LocalPort 3604 -Action Block
ufw
sudo ufw deny 3604/udp
iptables
sudo iptables -A INPUT -p udp --dport 3604 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3604 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3604' -Direction Inbound -Protocol UDP -LocalPort 3604 -Action Block

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