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Port 6969 (acmsoda)

IANA assigns port 6969 to acmsoda.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
acmsoda TCP acmsoda Daniel Simms -
acmsoda UDP acmsoda Daniel Simms -

Check what is listening on port 6969

Linux: is anything listening on TCP 6969?
sudo ss -tlnp 'sport = :6969'
Linux: UDP 6969
sudo ss -ulnp 'sport = :6969'
Linux / macOS: which process owns the port
sudo lsof -nP -i :6969
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':6969 '
Windows (Command Prompt)
netstat -ano | findstr :6969
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 6969 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 6969
From Windows
Test-NetConnection HOST -Port 6969
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 6969

Block port 6969 in the firewall

ufw
sudo ufw deny 6969/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 6969 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 6969 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 6969' -Direction Inbound -Protocol TCP -LocalPort 6969 -Action Block
ufw
sudo ufw deny 6969/udp
iptables
sudo iptables -A INPUT -p udp --dport 6969 -j DROP
nftables
sudo nft add rule inet filter input udp dport 6969 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 6969' -Direction Inbound -Protocol UDP -LocalPort 6969 -Action Block

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6965swistrap6966swispol6970conductor, conductor-mpx6980qolyester

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