102 lines
3.8 KiB
Plaintext
102 lines
3.8 KiB
Plaintext
---
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layout: docs
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page_title: Domain Model - Sessions
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description: |-
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The anatomy of a Boundary session
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---
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# Sessions
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A session is
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a set of related connections
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between a [user][] and a [host][].
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A session may include a set of [credentials][]
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which define the permissions granted to the [user][] on the [host][] for the duration
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of the session.
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A user initiates a session
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by requesting access to a [target][].
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If a user has the proper [permissions][],
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a session is created
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and the [expiration time][] and [connection limit][]
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are set based on the [target's attributes][].
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If the [target][] is associated with [credential libraries][],
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[credentials][] are retrieved and returned from each
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[credential library][].
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A snapshot of the data
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relevant to authorizing the session
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is also captured and stored in the Boundary data warehouse
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when the session is created.
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Sessions are created in the [project][] of the corresponding [target][].
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Deleting a project will terminate all of the active sessions in the project
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but will not effect any session data in the data warehouse.
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Historical data in the data warehouse is never deleted.
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## Termination
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A session is forcefully terminated when one of the following occurs:
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- The session reaches the time limit and expires.
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- An authorized user manually cancels the session.
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- Any resource associated with the session is deleted
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or removed from the [target][].
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This includes: the [host][], the [host set][], the [host catalog][],
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a [credential][], a [credential library][], a [credential store][],
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the [target][] itself, the [project][], the [organization][],
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the [user][], the user's [account][], or the account's [authentication method][].
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In addition to the above,
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a session terminates non-forcefully
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when the user closes all connections
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and no additional connections are allowed
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because of a connection limit.
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Any [credentials][] associated with the session are revoked when the session is
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terminated.
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Permissions are only evaluated at session establishment.
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Changes to a user's permissions do not effect existing sessions.
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## Referenced By
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- [Project][]
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- [Credential][]
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[expiration time]: /docs/concepts/domain-model/targets#session_max_seconds
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[connection limit]: /docs/concepts/domain-model/targets#session_connection_limit
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[target's attributes]: /docs/concepts/domain-model/targets#tcp-target-attributes
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[account]: /docs/concepts/domain-model/accounts
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[accounts]: /docs/concepts/domain-model/accounts
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[authentication method]: /docs/concepts/domain-model/auth-methods
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[authentication methods]: /docs/concepts/domain-model/auth-methods
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[credential library]: /docs/concepts/domain-model/credential-libraries
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[credential libraries]: /docs/concepts/domain-model/credential-libraries
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[credential store]: /docs/concepts/domain-model/credential-stores
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[credential stores]: /docs/concepts/domain-model/credential-stores
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[credential]: /docs/concepts/domain-model/credentials
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[credentials]: /docs/concepts/domain-model/credentials
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[host catalog]: /docs/concepts/domain-model/host-catalogs
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[host catalogs]: /docs/concepts/domain-model/host-catalogs
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[host set]: /docs/concepts/domain-model/host-sets
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[host sets]: /docs/concepts/domain-model/host-sets
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[host]: /docs/concepts/domain-model/hosts
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[hosts]: /docs/concepts/domain-model/hosts
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[target]: /docs/concepts/domain-model/targets
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[targets]: /docs/concepts/domain-model/targets
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[user]: /docs/concepts/domain-model/users
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[users]: /docs/concepts/domain-model/users
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[organization]: /docs/concepts/domain-model/scopes#organizations
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[organizations]: /docs/concepts/domain-model/scopes#organizations
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[project]: /docs/concepts/domain-model/scopes#projects
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[projects]: /docs/concepts/domain-model/scopes#projects
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[permissions]: /docs/concepts/security/permissions
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## Service API Docs
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The following services are relevant to this resource:
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- [Session Service](/api-docs/session-service)
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