Inbound Traffic Blocked, Check — Firewall Settings |link|

# Test TCP port nc -zv <target-ip> <port> telnet <target-ip> <port> Test with curl (HTTP) curl -v http://<target-ip>:<port>

If the service is not listening on the expected port, the firewall isn’t the issue. Linux (iptables / nftables / firewalld / ufw) Using iptables (legacy): inbound traffic blocked, check firewall settings

sudo ufw status verbose If inactive, enable it with sudo ufw enable . If active, check for rules like Deny from any or missing Allow rules for your port. # Test TCP port nc -zv &lt;target-ip&gt; &lt;port&gt;

sudo firewall-cmd --list-all Check the services and ports sections. If your port is missing, inbound traffic is blocked. inbound traffic blocked, check firewall settings

The firewall is blocking the incoming (inbound) traffic.