--- title: Service-to-service authorization: A guide to non-user... description: Learn about non-user principals, their importance in service-to-service communication, and how they can help address authentication and authorization... canonical: https://daily.dev/posts/service-to-service-authorization-a-guide-to-non-user-principals-lvatwhxtw twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Service-to-service authorization: A guide to non-user principals | daily.dev og:description: Learn about non-user principals, their importance in service-to-service communication, and how they can help address authentication and authorization... og:url: https://daily.dev/posts/service-to-service-authorization-a-guide-to-non-user-principals-lvatwhxtw og:image: https://api.daily.dev/og/posts/LvATwHxTw.png og:image:alt: Service-to-service authorization: A guide to non-user principals og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Service-to-service authorization: A guide to non-user principals **[Cerbos](https://daily.dev/sources/cerbos)** · 8 min read · 24 upvotes · 6 comments ## Summary Learn about non-user principals, their importance in service-to-service communication, and how they can help address authentication and authorization challenges in distributed systems. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#architecture](https://daily.dev/tags/architecture), [#authentication](https://daily.dev/tags/authentication), [#authorization](https://daily.dev/tags/authorization), [#distributed-systems](https://daily.dev/tags/distributed-systems), [#microservices](https://daily.dev/tags/microservices) [View this post on daily.dev](https://daily.dev/posts/service-to-service-authorization-a-guide-to-non-user-principals-lvatwhxtw) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Service-to-service authorization: A guide to non-user principals","url":"https://daily.dev/posts/service-to-service-authorization-a-guide-to-non-user-principals-lvatwhxtw","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/service-to-service-authorization-a-guide-to-non-user-principals-lvatwhxtw"},"datePublished":"2024-05-13T12:06:15.837Z","dateModified":"2024-11-16T02:19:40.806Z","description":"Learn about non-user principals, their importance in service-to-service communication, and how they can help address authentication and authorization...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/ab471ba9e3053e8c9482321c85795913?_a=AQAEuiZ","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/ab471ba9e3053e8c9482321c85795913?_a=AQAEuiZ","isAccessibleForFree":true,"articleSection":"Cerbos","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Cerbos","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/3a1b9cc36ed049dea39344fe1beb7e7e","url":"https://daily.dev/squads/cerbos"},"commentCount":6,"discussionUrl":"https://daily.dev/posts/service-to-service-authorization-a-guide-to-non-user-principals-lvatwhxtw","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":24},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":6}],"keywords":"architecture,authentication,authorization,distributed-systems,microservices","timeRequired":"PT8M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Cerbos","item":"https://daily.dev/squads/cerbos"},{"@type":"ListItem","position":3,"name":"Service-to-service authorization: A guide to non-user principals"}]} ```