I'm trying use R server. I installed following this: https://www.rstudio.com/products/rstudio/download-server/
I get this warning:
WARNING: You are configured to use the CRAN mirror at https://cran.rstudio.com/. This mirror supports secure (HTTPS) downloads however your system is unable to communicate securely with the server (possibly due to out of date certificate files on your system). Falling back to using insecure URL for this mirror.
And I can't install packages. It seems that R cannot connect to the internet. Does anyone has any solutions to this? I'm connecting ssh in Linux server.