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Port 5415 (ns-server)

IANA assigns port 5415 to ns-server: NS Server.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
ns-server TCP NS Server Jeffrey Chiao -
ns-server UDP NS Server Jeffrey Chiao -

Check what is listening on port 5415

Linux: is anything listening on TCP 5415?
sudo ss -tlnp 'sport = :5415'
Linux: UDP 5415
sudo ss -ulnp 'sport = :5415'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5415
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5415 '
Windows (Command Prompt)
netstat -ano | findstr :5415
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5415 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5415
From Windows
Test-NetConnection HOST -Port 5415
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 5415

Block port 5415 in the firewall

ufw
sudo ufw deny 5415/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5415 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5415 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5415' -Direction Inbound -Protocol TCP -LocalPort 5415 -Action Block
ufw
sudo ufw deny 5415/udp
iptables
sudo iptables -A INPUT -p udp --dport 5415 -j DROP
nftables
sudo nft add rule inet filter input udp dport 5415 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 5415' -Direction Inbound -Protocol UDP -LocalPort 5415 -Action Block

Related ports

5413wwiotalk5414statusd5416sns-gateway5417sns-agent

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