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by 0x0
1880 days ago
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No, you can do it blindly. For example, if you have a web page that has an <img> tag pointing to a specific domain, then you can assume the client will perform a DNS lookup, so you can send fake replies blindly, hoping it will match a lookup request that you don't see. Adding mixed case matching makes it more difficult to make a lucky guess when sending a fake reply blindly. |
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