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Port 26208 (wnn6-ds)

IANA assigns port 26208 to wnn6-ds.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
wnn6-ds TCP wnn6-ds Yasunari Gon Yamasit -
wnn6-ds UDP wnn6-ds Yasunari Gon Yamasit -

Check what is listening on port 26208

Linux: is anything listening on TCP 26208?
sudo ss -tlnp 'sport = :26208'
Linux: UDP 26208
sudo ss -ulnp 'sport = :26208'
Linux / macOS: which process owns the port
sudo lsof -nP -i :26208
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':26208 '
Windows (Command Prompt)
netstat -ano | findstr :26208
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 26208 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 26208
From Windows
Test-NetConnection HOST -Port 26208
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 26208

Block port 26208 in the firewall

ufw
sudo ufw deny 26208/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 26208 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 26208 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 26208' -Direction Inbound -Protocol TCP -LocalPort 26208 -Action Block
ufw
sudo ufw deny 26208/udp
iptables
sudo iptables -A INPUT -p udp --dport 26208 -j DROP
nftables
sudo nft add rule inet filter input udp dport 26208 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 26208' -Direction Inbound -Protocol UDP -LocalPort 26208 -Action Block

Related ports

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