DenyIfRequestHeader specifies browser headers that, if present in EZproxy requests, indicate that access should be denied to EZproxy. It is extremely unusual to deny access to EZproxy based on a header sent by a browser, but if this action is required this directive should be used.
DenyIfRequestHeader is a repeatable, position-dependent config.txt directive. Optional filename is a user visible document of this directive.
| Qualifier | Description |
|---|---|
| wildheader | The header that indicates the access should be denied, which may include the * wildcard to match zero or more characters and the ? wildcard to mach any one character.
Note: Wildheader may not contain any spaces. |
| Option | Description |
|---|---|
| allow | If allow appears after the wildheader, then any further DenyIfRequestHeader directives should be ignored and access should be granted. |
| filename | If the wildheader matches and filename is specified, EZproxy should send the content of filename to indicate why access is being denied. |
DenyIfRequestHeader denyfile wildcardtest
Deny access to Google indexing robot:
DenyIfRequestHeader User-Agent:*GoogleBot*
Deny access for people using a fictional, incompatible XYZ browser and give them feedback:
DenyIfRequestHeader User-Agent *XYZ* XYZFailsHere.htm