Options dialog - DNS - Recursion
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| · | Perform DNS recursion (resolve non-local domain names)
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| Specify which IP addresses should be offered recursion.
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| Use the Subnet Mask to specify a range of IP addresses; 255.255.255.255 means one IP address only, 255.255.255.0 means all IP addresses matching the first 3 segments etc.
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| · | When a DNS request is received from an IP address not included above, and the request is for a non-local domain name
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| Select one of the following options to specify how Simple DNS Plus should respond to such requests:
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| · | Respond with DNS records from cache and local hosts file (default)
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| · | Respond with a "Refused" error message
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| Using this option, you specifically inform the client that you will not perform any recursion for them or provide any data for the requested domain name.
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| · | Do not respond (stealth DNS)
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| Using this option, simple port scanning will not reveal that you are running a DNS server.
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| This may make you a less interesting target for hackers.
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| · | Respond with synthesized DNS records
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| Using this option, you can redirect the client to a sign up page, or to a page informing the client that he is using a wrong DNS server.
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