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Port 4092 (ewdgs)

IANA assigns port 4092 to ewdgs: EminentWare DGS.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
ewdgs TCP EminentWare DGS David A Gayler 2 -
ewdgs UDP EminentWare DGS David A Gayler 2 -

Registry dates for this port: registered 2006-07.

Check what is listening on port 4092

Linux: is anything listening on TCP 4092?
sudo ss -tlnp 'sport = :4092'
Linux: UDP 4092
sudo ss -ulnp 'sport = :4092'
Linux / macOS: which process owns the port
sudo lsof -nP -i :4092
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':4092 '
Windows (Command Prompt)
netstat -ano | findstr :4092
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 4092 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 4092
From Windows
Test-NetConnection HOST -Port 4092
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 4092

Block port 4092 in the firewall

ufw
sudo ufw deny 4092/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 4092 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 4092 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 4092' -Direction Inbound -Protocol TCP -LocalPort 4092 -Action Block
ufw
sudo ufw deny 4092/udp
iptables
sudo iptables -A INPUT -p udp --dport 4092 -j DROP
nftables
sudo nft add rule inet filter input udp dport 4092 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 4092' -Direction Inbound -Protocol UDP -LocalPort 4092 -Action Block

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.