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Port 368 (qbikgdp)

IANA assigns port 368 to qbikgdp: QbikGDP.

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

IANA assignment

Service nameProtoDescriptionAssigneeReference
qbikgdp TCP QbikGDP Adrien de Croy -
qbikgdp UDP QbikGDP Adrien de Croy -

Check what is listening on port 368

Linux: is anything listening on TCP 368?
sudo ss -tlnp 'sport = :368'
Linux: UDP 368
sudo ss -ulnp 'sport = :368'
Linux / macOS: which process owns the port
sudo lsof -nP -i :368
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':368 '
Windows (Command Prompt)
netstat -ano | findstr :368
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 368 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 368
From Windows
Test-NetConnection HOST -Port 368
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 368

Block port 368 in the firewall

ufw
sudo ufw deny 368/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 368 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 368 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 368' -Direction Inbound -Protocol TCP -LocalPort 368 -Action Block
ufw
sudo ufw deny 368/udp
iptables
sudo iptables -A INPUT -p udp --dport 368 -j DROP
nftables
sudo nft add rule inet filter input udp dport 368 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 368' -Direction Inbound -Protocol UDP -LocalPort 368 -Action Block

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366odmr367mortgageware369rpc2portmap370codaauth2

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