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Port 5416 (sns-gateway)

IANA assigns port 5416 to sns-gateway: SNS Gateway.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
sns-gateway TCP SNS Gateway Mary Holstage -
sns-gateway UDP SNS Gateway Mary Holstage -

Check what is listening on port 5416

Linux: is anything listening on TCP 5416?
sudo ss -tlnp 'sport = :5416'
Linux: UDP 5416
sudo ss -ulnp 'sport = :5416'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5416
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5416 '
Windows (Command Prompt)
netstat -ano | findstr :5416
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5416 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5416
From Windows
Test-NetConnection HOST -Port 5416
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 5416

Block port 5416 in the firewall

ufw
sudo ufw deny 5416/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5416 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5416 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5416' -Direction Inbound -Protocol TCP -LocalPort 5416 -Action Block
ufw
sudo ufw deny 5416/udp
iptables
sudo iptables -A INPUT -p udp --dport 5416 -j DROP
nftables
sudo nft add rule inet filter input udp dport 5416 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 5416' -Direction Inbound -Protocol UDP -LocalPort 5416 -Action Block

Related ports

5414statusd5415ns-server5417sns-agent5418mcntp

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