Part of twisted.names View Source
| Function | getSerial | Return a monotonically increasing (across program runs) integer. | 
| Class | FileAuthority | An Authority that is loaded from a file. | 
| Class | PySourceAuthority | A FileAuthority that is built up from Python source code. | 
| Class | BindAuthority | An Authority that loads BIND configuration files | 
State is stored in the given file. If it does not exist, it is created with rw-/---/--- permissions.