HTTPfy

Port 3193 (spandataport)

IANA assigns port 3193 to spandataport: SpanDataPort.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
spandataport TCP SpanDataPort Jesse McKay -
spandataport UDP SpanDataPort Jesse McKay -

Check what is listening on port 3193

Linux: is anything listening on TCP 3193?
sudo ss -tlnp 'sport = :3193'
Linux: UDP 3193
sudo ss -ulnp 'sport = :3193'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3193
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3193 '
Windows (Command Prompt)
netstat -ano | findstr :3193
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3193 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3193
From Windows
Test-NetConnection HOST -Port 3193
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3193

Block port 3193 in the firewall

ufw
sudo ufw deny 3193/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3193 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3193 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3193' -Direction Inbound -Protocol TCP -LocalPort 3193 -Action Block
ufw
sudo ufw deny 3193/udp
iptables
sudo iptables -A INPUT -p udp --dport 3193 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3193 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3193' -Direction Inbound -Protocol UDP -LocalPort 3193 -Action Block

Related ports

3191csvr-sslproxy3192firemonrcc3194magbind3195ncu-1

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