On Tue, 19 Sep 2017, 于千帆 via curl-users wrote:

> I used RStudio to install curl just by `install.packages(curl)`.

I don't even know what this is. RStudio is something for the R language,
right? So are you using the R binding to curl or the curl command line tool?

If the latter, what does "curl -V" show?

> Do you think there's a way to close SSL verification?

You can disable SSL verification with --insecure, but we really don't
recommend using that as a long-term fix as it makes the connection, yeah,
insecure.

-- 
  / daniel.haxx.se

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Received on 2017-09-20