How can I download android sdk package behind a server proxy?
On Linux or OSX create or edit the ~/.android/androidtool.cfg file. Add the following settings with your proxy server details:
http.proxyHost=127.0.0.1
http.proxyPort=8080
After you've added the settings start <sdk root>/tools/android sdk
The SDK manager will ask for your proxy userId / password.
If you start the SDK manager manually, rather than from Eclipse, there is a Settings menu which contains proxy options. See https://stackoverflow.com/a/2204065/385478
The SDK downloader does have proxy settings. You can go to Tools > Options to find the settings with ubuntu.
Installation of android SDK (on windows 7 with proxy authetication)
Steps: How to set proxy for android sdk manager?
you can see the proxy setting from IE if you are using windows for linux it is different