* 'host': Specifies a proxy host to be stored in `/etc/apt/apt.conf.d/01proxy`. Valid options: a string containing a hostname. Default: undef.
- * 'port': Specifies a proxy port to be stored in `/etc/apt/apt.conf.d/01proxy`. Valid options: a string containing a port number. Default: '8080'.
+ * 'port': Specifies a proxy port to be stored in `/etc/apt/apt.conf.d/01proxy`. Valid options: an integer containing a port number. Default: 8080.
* 'https': Specifies whether to enable https proxies. Valid options: 'true' and 'false'. Default: 'false'.
* `location`: Specifies an Apt repository containing the backports to manage. Valid options: a string containing a URL. Defaults:
- * Debian (squeeze): 'http://httpredir.debian.org/debian-backports'
- * Debian (other): 'http://httpredir.debian.org/debian'
+ * Debian: 'http://deb.debian.org/debian'
* Ubuntu: 'http://archive.ubuntu.com/ubuntu'
* `pin`: *Optional.* Specifies a pin priority for the backports. Valid options: a number or string to be passed to the `id` parameter of the `apt::pin` defined type, or a hash of `parameter => value` pairs to be passed to `apt::pin`'s corresponding parameters. Default: '200'.