A DNS Translation File consists of a list of DNS name pairs, consisting of a match and a replacement. When the file is used, the match is converted to the replacement, which is then passed to the resolver.
Special characters can be used in the match:
| Character | Usage |
|---|---|
? | Wildcard for a single character. |
* | Wildcard for multiple characters. |
# | Comment. |
Note: Wildcards can only be used in the match, not the replacement.
Example of DNS translation file contents:
# Translation File www.*tester.com www.pure-tester.com mail?.google.com mail.google.com