HTTPfy

Port 2306 (tappi-boxnet)

IANA assigns port 2306 to tappi-boxnet: TAPPI BoxNet.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
tappi-boxnet TCP TAPPI BoxNet Richard Spartz -
tappi-boxnet UDP TAPPI BoxNet Richard Spartz -

Check what is listening on port 2306

Linux: is anything listening on TCP 2306?
sudo ss -tlnp 'sport = :2306'
Linux: UDP 2306
sudo ss -ulnp 'sport = :2306'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2306
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2306 '
Windows (Command Prompt)
netstat -ano | findstr :2306
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2306 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2306
From Windows
Test-NetConnection HOST -Port 2306
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2306

Block port 2306 in the firewall

ufw
sudo ufw deny 2306/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2306 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2306 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2306' -Direction Inbound -Protocol TCP -LocalPort 2306 -Action Block
ufw
sudo ufw deny 2306/udp
iptables
sudo iptables -A INPUT -p udp --dport 2306 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2306 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2306' -Direction Inbound -Protocol UDP -LocalPort 2306 -Action Block

Related ports

2304attachmate-uts2305mt-scaleserver2307pehelp2308sdhelp

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