Inbound Traffic Blocked, Check Firewall Settings Page
sudo iptables -L -n -v Look for a default policy of DROP or REJECT on the INPUT chain. Example blocking line:
# Linux / macOS sudo netstat -tulpn | grep LISTEN # or ss -tuln netstat -an | findstr "LISTENING" inbound traffic blocked, check firewall settings
The firewall is blocking the incoming (inbound) traffic. sudo iptables -L -n -v Look for a
Issue: Users or services cannot connect to your server, application, or device from an external network (e.g., the internet or another subnet). Connection attempts time out or are actively rejected. Action Use with caution
Get-NetFirewallRule | Where-Object $_.Direction -eq 'Inbound' -and $_.Enabled -eq 'True' | Format-Table DisplayName, Action Use with caution; only for testing.
Chain INPUT (policy DROP)