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Port 5465 (netops-broker)

IANA assigns port 5465 to netops-broker: NETOPS-BROKER.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
netops-broker TCP NETOPS-BROKER John R Deuel -
netops-broker UDP NETOPS-BROKER John R Deuel -

Check what is listening on port 5465

Linux: is anything listening on TCP 5465?
sudo ss -tlnp 'sport = :5465'
Linux: UDP 5465
sudo ss -ulnp 'sport = :5465'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5465
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5465 '
Windows (Command Prompt)
netstat -ano | findstr :5465
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5465 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5465
From Windows
Test-NetConnection HOST -Port 5465
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 5465

Block port 5465 in the firewall

ufw
sudo ufw deny 5465/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5465 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5465 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5465' -Direction Inbound -Protocol TCP -LocalPort 5465 -Action Block
ufw
sudo ufw deny 5465/udp
iptables
sudo iptables -A INPUT -p udp --dport 5465 -j DROP
nftables
sudo nft add rule inet filter input udp dport 5465 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 5465' -Direction Inbound -Protocol UDP -LocalPort 5465 -Action Block

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