12.7. Configure the Firewall to Allow Telemetry Service Traffic

Procedure 12.5. Configuring the Firewall to Allow Telemetry Service Traffic

1. Open the /etc/sysconfig/iptables file in a text editor.
2. Add an INPUT rule allowing TCP traffic on port 8777. The new rule must appear before any INPUT rules that REJECT traffic:

   -A INPUT -p tcp -m multiport --dports 8777 -j ACCEPT

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3. Save the changes to the /etc/sysconfig/iptables file.
4. Restart the iptables service to ensure that the change takes effect:

   # systemctl restart iptables.service

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