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Port 9164 (apani5)

IANA assigns port 9164 to apani5.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
apani5 TCP apani5 Neal Taylor -
apani5 UDP apani5 Neal Taylor -

Check what is listening on port 9164

Linux: is anything listening on TCP 9164?
sudo ss -tlnp 'sport = :9164'
Linux: UDP 9164
sudo ss -ulnp 'sport = :9164'
Linux / macOS: which process owns the port
sudo lsof -nP -i :9164
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':9164 '
Windows (Command Prompt)
netstat -ano | findstr :9164
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 9164 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 9164
From Windows
Test-NetConnection HOST -Port 9164
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 9164

Block port 9164 in the firewall

ufw
sudo ufw deny 9164/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 9164 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 9164 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 9164' -Direction Inbound -Protocol TCP -LocalPort 9164 -Action Block
ufw
sudo ufw deny 9164/udp
iptables
sudo iptables -A INPUT -p udp --dport 9164 -j DROP
nftables
sudo nft add rule inet filter input udp dport 9164 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 9164' -Direction Inbound -Protocol UDP -LocalPort 9164 -Action Block

Related ports

9162apani39163apani49183sirius-agent9191sun-as-jpda

All port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.