Install R packages behind a proxy

UserBird

install.packages(...) does not work, as the DSS server is behind a proxy and cannot connect directly to the internet.

jrouquie

You need to tell R about the proxy, this way:

Sys.setenv("ftp_proxy"="http://fproxy.example.local:4242/")
Sys.setenv("http_proxy"="http://proxy.example.local:4242/")

Note that you might need to issue those commands in a fresh R session, before any install.package() attempt. Then install.package() should work.