[R] R-2.6.0 - packages installation through a proxy - not working

[Rainer M. Krug]

Liviu Andronic wrote:
> Hello everyone,
> 
> I run R on Gentoo Linux and this week I upgraded R from 2.5.0 to
> 2.6.0. With the new build, I have stumbled upon an unpleasant problem:
> I can no longer install packages from CRAN through a transparent
> proxy. With the previous version, I simply added to

I always change the variables in the terminal window before I start R, i.e.

export http_proxy=SERVER:3128
export ftp_proxy=SERVER:3128

and then start R - I did it this morning, and it worked.

> /usr/lib/R/etc/Renviron the following line and it functioned like a
> charm:
> ## Proxy settings
> http_proxy="SERVER:3128"
> 
> With 2.6.0, however, R refuses to connect to the CRAN mirror. I have
> added to the new Renviron even more lines (useless, probably). Now the
> Proxy settings look like this:
> ## Proxy settings
> http_proxy="SERVER:3128"
> https_proxy="SERVER:3128"
> ftp_proxy="SERVER:3128"
> 
> I also tried - with no luck - to use the following command at the
> start of the R session:
> Sys.setenv(http_proxy="SERVER:3128")
> 
> I get the following error message:
>> install.packages("Rcmdr", dependencies=TRUE)
> --- Please select a CRAN mirror for use in this session ---
> Error in open.connection(file, "r") : unable to open connection
> In addition: Warning message:
> In open.connection(file, "r") :
>   unable to connect to 'cran.r-project.org' on port 80.
> Loading Tcl/Tk interface ... done
> Warning: unable to access index for repository
> http://cran.stat.unipd.it/src/contrib
> Warning message:
> In install.packages("Rcmdr", dependencies = TRUE) :
>   package 'Rcmdr' is not available
> 
> 
> So, is this a bug in R-2.6.0 or did anything change in the way these
> settings are handled?
> 
> Regards,
> Liviu
> 
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Rainer M. Krug, Dipl. Phys. (Germany), MSc Conservation
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