Synology DS411SLIM manual Prevent Unauthorized Connection with Firewall, To create a firewall rule

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Chapter 6: Enhance Internet Security	6

After your Synology DiskStation is available on the Internet, you will need to safeguard it against any attacks from Internet hackers.

This chapter explains how to set up firewall and enable auto block.

Prevent Unauthorized Connection with Firewall

The built-in firewall can prevent unauthorized logins, and control which services can be accessed. In addition, you can choose to allow or deny access to certain network ports from specific IP addresses.

Go to Main Menu > Control Panel > Firewall to create firewall rules.

Note: You can create up to 100 rules for Synology DiskStation.

To create a firewall rule:

1Click the LAN, Bond (multiple-LAN models only), PPPoE, or Wireless Network tab, depending on the type of your network connection.

2Click Create to open the settings window.

3Choose an option in the Ports section. You can apply the rule to all ports or selected ports using one of the following options:

All: Choose this option to apply the rule to all ports on Synology DiskStation.

Select from a list of built-in applications: Tick the system services that will be included in the rule.

Custom: Specify the type and protocol of the port, and enter the custom port number. You can enter up to 15 ports separated with comma, or by specifying a port range.

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