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Port 96 (dixie)

IANA assigns port 96 to dixie: DIXIE Protocol Specification.

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

IANA assignment

Service nameProtoDescriptionAssigneeReference
dixie TCP DIXIE Protocol Specification Tim Howes -
dixie UDP DIXIE Protocol Specification Tim Howes -

Check what is listening on port 96

Linux: is anything listening on TCP 96?
sudo ss -tlnp 'sport = :96'
Linux: UDP 96
sudo ss -ulnp 'sport = :96'
Linux / macOS: which process owns the port
sudo lsof -nP -i :96
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':96 '
Windows (Command Prompt)
netstat -ano | findstr :96
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 96 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 96
From Windows
Test-NetConnection HOST -Port 96
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 96

Block port 96 in the firewall

ufw
sudo ufw deny 96/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 96 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 96 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 96' -Direction Inbound -Protocol TCP -LocalPort 96 -Action Block
ufw
sudo ufw deny 96/udp
iptables
sudo iptables -A INPUT -p udp --dport 96 -j DROP
nftables
sudo nft add rule inet filter input udp dport 96 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 96' -Direction Inbound -Protocol UDP -LocalPort 96 -Action Block

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.