What Does It Mean?

[kanamaster]

I have seen in the report of the DNSA monitor, the following text, preceded by an IP address:
"Invalid resource request(/robots.txt)"
Can anybody here tell me what it means?
Thanks in advance.
Regards.

[bingo]

It is a search engine browsing your URL and seeking for a text file named robots.txt which is usually used to restrict access to some parts of web sites (a directory, some files, etc).

[kanamaster]

Is it a kind of a possible attack or something like that?
Thanks.

[bingo]

No, surely a search engine indexing your main site and which followed your playlist file or another idea, a search engine following the yp entried and if you put your IP:PORT as a URL, accessed your DNAS directly.

[kanamaster]

Thank you bingo!
Regards.