- Username/password: modify the default password for a firewall device
- Remote administration: Disable the feature of the remote administration
- Port forwarding: Configure appropriate port forwarding for certain applications to work properly, such as a web server or FTP server
- DHCP server: Installing a firewall on a network with an existing DHCP server will cause conflict unless the firewall’s DHCP is disabled
- Logging: To troubleshoot firewall issues or potential attacks, ensure that logging is enabled and understand how to view logs
- Policies: You should have solid security policies in place and make sure that the firewall is configured to enforce those policies.
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