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Port 3228 (dwmsgserver)

IANA assigns port 3228 to dwmsgserver: DiamondWave MSG Server.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
dwmsgserver TCP DiamondWave MSG Server Varma Bhupatiraju -
dwmsgserver UDP DiamondWave MSG Server Varma Bhupatiraju -

Check what is listening on port 3228

Linux: is anything listening on TCP 3228?
sudo ss -tlnp 'sport = :3228'
Linux: UDP 3228
sudo ss -ulnp 'sport = :3228'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3228
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3228 '
Windows (Command Prompt)
netstat -ano | findstr :3228
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3228 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3228
From Windows
Test-NetConnection HOST -Port 3228
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3228

Block port 3228 in the firewall

ufw
sudo ufw deny 3228/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3228 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3228 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3228' -Direction Inbound -Protocol TCP -LocalPort 3228 -Action Block
ufw
sudo ufw deny 3228/udp
iptables
sudo iptables -A INPUT -p udp --dport 3228 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3228 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3228' -Direction Inbound -Protocol UDP -LocalPort 3228 -Action Block

Related ports

3226isi-irp3227dwnmshttp3229global-cd-port3230sftdst-port

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