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Port 16161 (sun-sea-port)

IANA assigns port 16161 to sun-sea-port: Solaris SEA Port.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
sun-sea-port TCP Solaris SEA Port Dana Porter -
sun-sea-port UDP Solaris SEA Port Dana Porter -

Registry dates for this port: registered 2003-10.

Check what is listening on port 16161

Linux: is anything listening on TCP 16161?
sudo ss -tlnp 'sport = :16161'
Linux: UDP 16161
sudo ss -ulnp 'sport = :16161'
Linux / macOS: which process owns the port
sudo lsof -nP -i :16161
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':16161 '
Windows (Command Prompt)
netstat -ano | findstr :16161
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 16161 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 16161
From Windows
Test-NetConnection HOST -Port 16161
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 16161

Block port 16161 in the firewall

ufw
sudo ufw deny 16161/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 16161 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 16161 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 16161' -Direction Inbound -Protocol TCP -LocalPort 16161 -Action Block
ufw
sudo ufw deny 16161/udp
iptables
sudo iptables -A INPUT -p udp --dport 16161 -j DROP
nftables
sudo nft add rule inet filter input udp dport 16161 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 16161' -Direction Inbound -Protocol UDP -LocalPort 16161 -Action Block

Related ports

16020jwpc16021jwpc-bin16162solaris-audit16309etb4j

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