Firewalld blocks traffic from most ports by default. Sometimes, something goes wrong and temporarily disabling Firewalld can help you troubleshoot the problem. We’ve also covered how to manage zones and more advanced Firewalld configurations.įrom the configuration guide, one of the most important related tasks for troubleshooting server access is how to disable Firewalld temporarily or permanently. We’ve covered how to open necessary ports and services in Firewalld. Firewalld is a popular, lightweight command-line firewall for Linux server and desktop systems.
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