POST /v1.1/auth HTTP/1.1
User-Agent: curl/7.21.0 (x86_64-pc-linux-gnu) libcurl/7.21.0 OpenSSL/0.9.8o zlib/1.2.3.4 libidn/1.15 libssh2/1.2.6
Host: auth.api.rackspacecloud.com
Accept: application/xml
Content-Type: application/xml
Content-Length: 88

<?xml version="1.0" encoding="UTF-8"?>
<credentials xmlns="http://docs.rackspacecloud.com/auth/api/v1.1"
             username="hub_cap"
             key="a86850deb2742ec3cb41518e26aa2d89"/>
