After you jailbreak with the Pangu iOS 7.1/7.1.1 jailbreak tool
, your device's filesystem can be accessed by means of SSH. Some people prefer just connecting their device to their computer by means of their USB sync cable and using a third-party application to modify the contents of the device's filesystem, as it's easier and requires no network information to be used, but this requires additional software.
To allow this, you'll want to install a new package from Jay Freeman (saurik) called Apple File Conduit "2,"
which is a package that will