update.packages with proxy?

Mon, Sep 3, 2001 12:11 AM

This reminds me of a question I've never asked yet: Is there a trick to make
this work when a username authentication is required for using the proxy?
I need a user name and a password to connect to the Internet, and so I get:

_              
platform i386-pc-mingw32
arch     x86            
os       Win32          
system   x86, Win32     
status                  
major    1              
minor    3.0            
year     2001           
month    06             
day      22             
language R

trying URL `http://cran.r-project.org/bin/windows/contrib/PACKAGES'
Error in download.file(url = paste(contriburl, "PACKAGES", sep = "/"),  : 
        cannot open: HTTP status was `407 Proxy authorization required'

I understand why this does not work, but don't know what I can do about it.

Heinrich.

----------
Von: 	Prof Brian Ripley[SMTP:ripley at stats.ox.ac.uk]
Gesendet: 	Samstag, 01. September 2001 10:18
An: 	Philippe Grosjean
Cc: 	Kenneth Cabrera; R-help at stat.math.ethz.ch
Betreff: 	RE: [R] update.packages with proxy?

On Sat, 1 Sep 2001, Philippe Grosjean wrote:

You don't tell which system you are running on. But if it is Windows, it

is

possible to use update.package() through a proxy with the following
modifications:

- Go to the subdirectory 'modules'. You will find there 'internet.dll'

and

'internet2.dll'.
- Rename 'internet.dll' whatever you want. For instance 'internet.old'
- Rename 'internet2.dll' to 'internet.dll'

Now, R will use the same configuration as Internet Explorer does. If you

can

access the web via Internet Explorer through a proxy, i.e., if you

correctly

configure it, then, it should now be the same for R.

If I understand, primary 'internet.dll' is more reliable but it bypass
internet access configuration of IE. 'internet2.dll' is provided as an
alternative in cases where 'internet.dll' fails, like an access through

proxy.

internet.dll also works through a proxy.  Why it fails on some Windows
systems is unknown: we have been unable to reproduce the problem.  Now
1.3.1 is released, the documentation shows how to set proxies for each.
(Binaries for 1.3.1 are not yet on CRAN.)

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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update.packages with proxy?

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