can't get thru proxy server; tried fixes on SO

Asked Oct 01 '12 at 11:55

Active Oct 01 '12 at 12:44

Viewed 269 times

On Windows, behind a corporate proxy server which requires password authentication, I tried the approaches listed at Proxy setting for R and How do I tell the R interpreter how to use the proxy server?. When I try to select a mirror, I get:

Warning message:
In open.connection(con, "r") : unable to resolve 'cran.r-project.org'

I'm pretty sure my username and password are going thru, as I no longer get a message 407(?) telling me that authentication is required. I got this by setting the value of http_proxy either from the console or in the R-properties dialog window. So, any suggestions as to what else I should try?

Edit: Spacedman: I typed

Sys.setenv(http_proxy='username:password@proxyname.company.com:80')`

and also tried the same definition string in the R-properties (Windows) dialog box. Doesn't matter whether I include "http://" in the definition or not; 80 or 8080 same.

edited May 23 '17 at 10:24

Community

asked Oct 01 '12 at 11:55

Carl Witthoft

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You need to show us exactly what you typed in in order to set the proxy. – Spacedman Oct 01 '12 at 12:31
set the proxy in IE, and then call setInternet2(TRUE) in R? – richiemorrisroe Oct 01 '12 at 12:57
@richiemorrisroe So far as i know, I can't load my passwd into IE settings. W/o authentication, nothing goes. – Carl Witthoft Oct 01 '12 at 13:18
It might be a firewall issue. Ask your IT support if they restrict outgoing traffic. – James Oct 01 '12 at 13:22
@James -- you're probably right, so I may be stuck. – Carl Witthoft Oct 01 '12 at 15:01

can't get thru proxy server; tried fixes on SO

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