1, filename '-' is used when doing simple filtering.
2, filename '-' is stated as file with the 'zonefile' directive in
the filter configuration file (-F).
3, No zonefile is specified in the filter configuration file (-F).
1, filename '-' is used when doing simple filtering.
2, filename '-' is stated as file with the 'zonefile' directive in
the filter configuration file (-F).
3, No zonefile is specified in the filter configuration file (-F).