HTTPfy

Port 11161 (suncacao-snmp)

IANA assigns port 11161 to suncacao-snmp: sun cacao snmp access point.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
suncacao-snmp TCP sun cacao snmp access point Nick Stephen -
suncacao-snmp UDP sun cacao snmp access point Nick Stephen -

Registry dates for this port: registered 2005-08.

Check what is listening on port 11161

Linux: is anything listening on TCP 11161?
sudo ss -tlnp 'sport = :11161'
Linux: UDP 11161
sudo ss -ulnp 'sport = :11161'
Linux / macOS: which process owns the port
sudo lsof -nP -i :11161
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':11161 '
Windows (Command Prompt)
netstat -ano | findstr :11161
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 11161 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 11161
From Windows
Test-NetConnection HOST -Port 11161
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 11161

Block port 11161 in the firewall

ufw
sudo ufw deny 11161/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 11161 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 11161 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 11161' -Direction Inbound -Protocol TCP -LocalPort 11161 -Action Block
ufw
sudo ufw deny 11161/udp
iptables
sudo iptables -A INPUT -p udp --dport 11161 -j DROP
nftables
sudo nft add rule inet filter input udp dport 11161 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 11161' -Direction Inbound -Protocol UDP -LocalPort 11161 -Action Block

Related ports

11111vce11112dicom11162suncacao-jmxmp11163suncacao-rmi

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