HTTPfy

Port 396 (netware-ip)

IANA assigns port 396 to netware-ip: Novell Netware over IP.

Well-known (system) port, 0-1023 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
netware-ip TCP Novell Netware over IP - -
netware-ip UDP Novell Netware over IP - -

Check what is listening on port 396

Linux: is anything listening on TCP 396?
sudo ss -tlnp 'sport = :396'
Linux: UDP 396
sudo ss -ulnp 'sport = :396'
Linux / macOS: which process owns the port
sudo lsof -nP -i :396
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':396 '
Windows (Command Prompt)
netstat -ano | findstr :396
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 396 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 396
From Windows
Test-NetConnection HOST -Port 396
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 396

Block port 396 in the firewall

ufw
sudo ufw deny 396/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 396 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 396 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 396' -Direction Inbound -Protocol TCP -LocalPort 396 -Action Block
ufw
sudo ufw deny 396/udp
iptables
sudo iptables -A INPUT -p udp --dport 396 -j DROP
nftables
sudo nft add rule inet filter input udp dport 396 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 396' -Direction Inbound -Protocol UDP -LocalPort 396 -Action Block

Related ports

394embl-ndt395netcp397mptn398kryptolan

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