which ports have to be open for install.packages() function ? i dont want to open fully the server on which rstudio server is running. Thank you
This function will contact the cran repos you'll set
something like https://cran.rstudio.com
https is port 443 by default.
http is 80
I think that should be enough.
You can also be interested on an internal cran mirror on your network.
And byRStudio Package Manager product that will be useful for this.