有人 /openftp4 釋出他的掃描果
openftp4 This is a list of all (796,578) FTP servers directly connected to port 21 in the IPv4 address space that allow anonymous logins. The login must be completed in less than 5 seconds to qualify for this list. How and why this list was created is documented in detail in my blog post Mass-analyzing a chunk of the Internet. You can do whatever you want with this data. Consider linking to this repo if you find something interesting or odd.
不過不是所有的都可以被有效寫入的
檢查自己的 ftp server ，沒用的就關閉它吧
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