Connecting through proxy

IN  R SETTINGS

setInternet2(TRUE) # force R to use Internet Explorer proxy settings

To set it by yourself
Sys.Setenv(http_proxy="host:port")

To make these changes every R sessions
RProfile can be used to customize R sessions.
Its stored at R-3.x\etc\Rprofile.site
You can add 2 functions,one to run at start(.First) and other to run on exit(.Last)

for eg:
.First <- function() { utils::setInternet2(TRUE) }
will ensure R uses the explorer settings each time it opens

IN  OTHER  COMMON HTTP PACKAGES

httr

set_config (use_proxy ("url", port))

RCurl
options (RCurlOptions = list (proxy ="url:port",proxyuserpwd="domain\\username:password",proxyauth="ntlm")

 

 

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