| BIND 8.2.1 | BIND 4.9.7 |
| Configuration file | This version uses the |
| syntax provides greater | standard BIND syntax |
| flexibility and | as specified by |
| granularity specified | the named.conf file. |
| by the named.conf file. | |
| Supports Dynamic Update | Does not support |
| Standard. | Dynamic Update Standard. |
| Zone change notification | Does not support zone |
| (NOTIFY) support exists | change notification |
| for the primary master | (NOTIFY). |
| server to notify slave | |
| servers of zone changes. | |
| Provides greater control | Does not provide as much |
| and granularity on | control and granularity |
| logging. | over logging. |
| Configuration options | |
| are extensive and | |
| complex. | |
| Provides many more | Provides more security |
| security features. | than its predecessors, |
| but not as many as v8. |
