HTTPfy

Port 3049 (nsws)

IANA assigns port 3049 to nsws: NSWS.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
nsws TCP NSWS Ray Gwinn -
nsws UDP NSWS Ray Gwinn -

Check what is listening on port 3049

Linux: is anything listening on TCP 3049?
sudo ss -tlnp 'sport = :3049'
Linux: UDP 3049
sudo ss -ulnp 'sport = :3049'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3049
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3049 '
Windows (Command Prompt)
netstat -ano | findstr :3049
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3049 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3049
From Windows
Test-NetConnection HOST -Port 3049
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3049

Block port 3049 in the firewall

ufw
sudo ufw deny 3049/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3049 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3049 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3049' -Direction Inbound -Protocol TCP -LocalPort 3049 -Action Block
ufw
sudo ufw deny 3049/udp
iptables
sudo iptables -A INPUT -p udp --dport 3049 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3049 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3049' -Direction Inbound -Protocol UDP -LocalPort 3049 -Action Block

Related ports

3047hlserver3048pctrader3050gds-db, gds_db3051galaxy-server

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