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Router configuration files that are changed frequently should be backed up. TFTP is an option that transfers configuration to a server or router after changes have been made. TFTP, however, is a non-authenticated protocol.
- A non-authenticated protocol requires no username or password for authentication.
- Anyone who can obtain access to the TFTP server can modify the configuration files.
- The most secure procedure is to turn TFTP on, transfer files, then turn the TFTP service off.
- The access list can control network traffic to the TFTP server.
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