TOP-126 running terraform behind a proxy

Author: afedorch

website/docs/guides/troubleshooting.html.markdown

@@ -32,3 +32,19 @@ Error asking for user input: 1 error(s) occurred:
 
 You are likely using a version of the OCI Terraform Provider that is not compatible with the Terraform binary you have 
 installed. For OCI Provider versions v3.x.x and above, a minimum Terraform version of v.0.10.1 is required. 
+
+
+### Dial tcp i/o timeout when connecting via proxy
+
+_If the Terraform CLI gives an error message like:_
+```
+* provider.oci: ... dial tcp 134.70.16.0:443: i/o timeout
+
+```
+
+Then you may not have properly configured your proxy settings. The OCI terraform provider does support `http_proxy`, `https_proxy` and `no_proxy` variables where the inclusion or exclusion lists can be defined as follows:
+```
+export http_proxy=http://www.your-proxy.com:80/
+export https_proxy=http://www.your-proxy.com:80/
+export no_proxy=localhost,127.0.0.1
+```