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Port 6073 (directplay8)

IANA assigns port 6073 to directplay8: DirectPlay8.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
directplay8 TCP DirectPlay8 John Kane -
directplay8 UDP DirectPlay8 John Kane -

Check what is listening on port 6073

Linux: is anything listening on TCP 6073?
sudo ss -tlnp 'sport = :6073'
Linux: UDP 6073
sudo ss -ulnp 'sport = :6073'
Linux / macOS: which process owns the port
sudo lsof -nP -i :6073
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':6073 '
Windows (Command Prompt)
netstat -ano | findstr :6073
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 6073 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 6073
From Windows
Test-NetConnection HOST -Port 6073
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 6073

Block port 6073 in the firewall

ufw
sudo ufw deny 6073/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 6073 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 6073 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 6073' -Direction Inbound -Protocol TCP -LocalPort 6073 -Action Block
ufw
sudo ufw deny 6073/udp
iptables
sudo iptables -A INPUT -p udp --dport 6073 -j DROP
nftables
sudo nft add rule inet filter input udp dport 6073 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 6073' -Direction Inbound -Protocol UDP -LocalPort 6073 -Action Block

Related ports

6071ssdtp6072diagnose-proc6074max6075dpm-acm

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