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50 lines
1.6 KiB
Text
50 lines
1.6 KiB
Text
// Module included in the following assemblies:
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//
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// firewalld.adoc
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[id='changing_runtime_firewalld_fedora']
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= Changing settings in runtime and permanent configuration using CLI
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Using the CLI, you can only modify either runtime or permanent mode. To modify the firewall settings in permanent mode, use the `--permanent` option with the `firewall-cmd` command.
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----
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$ sudo firewall-cmd --permanent <other options>
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----
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Without this option, the command modifies runtime mode.
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To change settings in both modes, you can use two methods:
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* Change runtime settings and then make them permanent as follows:
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. Change the runtime settings:
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`firewall-cmd <other options>`
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. Use `--runtime-to-permanent` to make the changes permanent.
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`firewall-cmd --runtime-to-permanent`
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* Set permanent settings and reload the settings into runtime mode:
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. Make the changes in permanent mode:
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`firewall-cmd --permanent <other options>`
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. Reload the settings:
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`firewall-cmd --reload`
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The first method allows you to test the settings before you apply them to permanent mode.
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[NOTE]
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====
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It is possible that an incorrect setting will result in a user locking themselves out of a machine. To prevent this, use the `--timeout` option. Using this option means that after a specified amount of time, any change reverts to its previous state.
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You can not use the `--permanent` option with the `--timeout` option.
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For example, to add the SSH service for 15 minutes use this command:
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----
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$ sudo firewall-cmd --add-service=ssh --timeout 15m
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----
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The SSH service will be available until access is removed after 15 minutes.
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====
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