> For the complete documentation index, see [llms.txt](https://docs.parallels.com/landing/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.parallels.com/landing/ras-rest-api-guide/api-reference/site-settings/mfa/mfa-default-settings/criteria/oses.md).
# OSes
## Get
> Retrieve Criteria OS of a Site Defaults object.
```json
{"openapi":"3.0.1","info":{"title":"Parallels RAS - REST API v1.0","version":"1.0"},"paths":{"/api/MFADefaultSettings/Criteria/OSes":{"get":{"tags":["2-Site settings/Multi-factor Authentication/1-Default settings/Criteria//Operating System"],"summary":"Get","description":"Retrieve Criteria OS of a Site Defaults object.","operationId":"ec7e68e8-b252-4686-b0bc-32a506dceadf","parameters":[{"name":"siteId","in":"query","description":"The SiteId of a Site Defaults object for which to retrieve the Criteria settings (optional).","schema":{"type":"integer","format":"int32"}}],"responses":{"200":{"description":"Success","content":{"application/json; api-version=1.0":{"schema":{"$ref":"#/components/schemas/AllowedOperatingSystems"}}}},"401":{"description":"Unauthorized","content":{"application/json; api-version=1.0":{"schema":{"$ref":"#/components/schemas/ProblemDetails"}}}},"404":{"description":"Not Found","content":{"application/json; api-version=1.0":{"schema":{"$ref":"#/components/schemas/ProblemDetails"}}}}}}}},"components":{"schemas":{"AllowedOperatingSystems":{"type":"object","properties":{"chrome":{"type":"boolean","description":"Whether Chrome is allowed or not."},"android":{"type":"boolean","description":"Whether Android is allowed or not."},"webClient":{"type":"boolean","description":"Whether Web Client is allowed or not."},"iOS":{"type":"boolean","description":"Whether iOS is allowed or not."},"linux":{"type":"boolean","description":"Whether Linux is allowed or not."},"mac":{"type":"boolean","description":"Whether MAC OS is allowed or not."},"wyse":{"type":"boolean","description":"Whether Wyse is allowed or not."},"windows":{"type":"boolean","description":"Whether Windows is allowed or not."}},"additionalProperties":false,"description":"Allowed Operating Systems\r\n"},"ProblemDetails":{"type":"object","properties":{"type":{"type":"string","nullable":true},"title":{"type":"string","nullable":true},"status":{"type":"integer","format":"int32","nullable":true},"detail":{"type":"string","nullable":true},"instance":{"type":"string","nullable":true}},"additionalProperties":{}}}}}
```
## Update
> Modify the OS of the Criteria settings.
```json
{"openapi":"3.0.1","info":{"title":"Parallels RAS - REST API v1.0","version":"1.0"},"paths":{"/api/MFADefaultSettings/Criteria/OSes":{"put":{"tags":["2-Site settings/Multi-factor Authentication/1-Default settings/Criteria//Operating System"],"summary":"Update","description":"Modify the OS of the Criteria settings.","operationId":"bf55f701-ef5a-42e4-8caa-7995f7e1f1ba","parameters":[{"name":"siteId","in":"query","description":"The Site ID of an object for which to modify the Criteria settings (optional).","schema":{"type":"integer","format":"int32"}}],"requestBody":{"description":"OS configuration.","content":{"application/json; api-version=1.0":{"schema":{"$ref":"#/components/schemas/SetCriteriaOS"}}}},"responses":{"204":{"description":"No Content"},"401":{"description":"Unauthorized","content":{"application/json; api-version=1.0":{"schema":{"$ref":"#/components/schemas/ProblemDetails"}}}},"404":{"description":"Not Found","content":{"application/json; api-version=1.0":{"schema":{"$ref":"#/components/schemas/ProblemDetails"}}}}}}}},"components":{"schemas":{"SetCriteriaOS":{"type":"object","properties":{"allowClientChrome":{"type":"boolean","description":"Allow Chrome OS clients.","nullable":true},"allowClientAndroid":{"type":"boolean","description":"Allow Android clients.","nullable":true},"allowClientWeb":{"type":"boolean","description":"Allow Web clients.","nullable":true},"allowClientIOS":{"type":"boolean","description":"Allow IOS clients.","nullable":true},"allowClientLinux":{"type":"boolean","description":"Allow Linux clients.","nullable":true},"allowClientMAC":{"type":"boolean","description":"Allow Mac clients.","nullable":true},"allowClientWindows":{"type":"boolean","description":"Allow Windows clients.","nullable":true},"allowClientWyse":{"type":"boolean","description":"Allow Wyse clients.","nullable":true}},"additionalProperties":false},"ProblemDetails":{"type":"object","properties":{"type":{"type":"string","nullable":true},"title":{"type":"string","nullable":true},"status":{"type":"integer","format":"int32","nullable":true},"detail":{"type":"string","nullable":true},"instance":{"type":"string","nullable":true}},"additionalProperties":{}}}}}
```
---
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