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Port 11163 (suncacao-rmi)

IANA assigns port 11163 to suncacao-rmi: sun cacao rmi registry access point.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

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

Registry dates for this port: registered 2005-08.

Check what is listening on port 11163

Linux: is anything listening on TCP 11163?
sudo ss -tlnp 'sport = :11163'
Linux: UDP 11163
sudo ss -ulnp 'sport = :11163'
Linux / macOS: which process owns the port
sudo lsof -nP -i :11163
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':11163 '
Windows (Command Prompt)
netstat -ano | findstr :11163
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 11163 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 11163
From Windows
Test-NetConnection HOST -Port 11163
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 11163

Block port 11163 in the firewall

ufw
sudo ufw deny 11163/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 11163 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 11163 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 11163' -Direction Inbound -Protocol TCP -LocalPort 11163 -Action Block
ufw
sudo ufw deny 11163/udp
iptables
sudo iptables -A INPUT -p udp --dport 11163 -j DROP
nftables
sudo nft add rule inet filter input udp dport 11163 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 11163' -Direction Inbound -Protocol UDP -LocalPort 11163 -Action Block

Related ports

11161suncacao-snmp11162suncacao-jmxmp11164suncacao-csa11165suncacao-websvc

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