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Port 9161 (apani2)

IANA assigns port 9161 to apani2.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
apani2 TCP apani2 Neal Taylor -
apani2 UDP apani2 Neal Taylor -

Check what is listening on port 9161

Linux: is anything listening on TCP 9161?
sudo ss -tlnp 'sport = :9161'
Linux: UDP 9161
sudo ss -ulnp 'sport = :9161'
Linux / macOS: which process owns the port
sudo lsof -nP -i :9161
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':9161 '
Windows (Command Prompt)
netstat -ano | findstr :9161
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 9161 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 9161
From Windows
Test-NetConnection HOST -Port 9161
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 9161

Block port 9161 in the firewall

ufw
sudo ufw deny 9161/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 9161 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 9161 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 9161' -Direction Inbound -Protocol TCP -LocalPort 9161 -Action Block
ufw
sudo ufw deny 9161/udp
iptables
sudo iptables -A INPUT -p udp --dport 9161 -j DROP
nftables
sudo nft add rule inet filter input udp dport 9161 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 9161' -Direction Inbound -Protocol UDP -LocalPort 9161 -Action Block

Related ports

9131dddp9160apani19162apani39163apani4

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