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Update citadel description (#2968) 

Fixes: https://github.com/istio/istio.io/edit/master/content/docs/concepts/what-is-istio/index.md
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Tao Li 2018-12-10 14:03:27 -08:00 committed by Martin Taillefer
parent f45827a8b4
commit b1a0c38a49
1 changed files with 4 additions and 4 deletions
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content/docs/concepts/what-is-istio/index.md
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@ -187,13 +187,13 @@ management.
### Citadel ### Citadel
[Citadel](/docs/concepts/security/) provides strong service-to-service and [Citadel](/docs/concepts/security/) enables strong service-to-service and
end-user authentication with built-in identity and credential management. You end-user authentication with built-in identity and credential management. You
can use Citadel to upgrade unencrypted traffic in the service mesh. Using can use Citadel to upgrade unencrypted traffic in the service mesh. Using
Citadel, operators can enforce policies based on service identity rather than Citadel, operators can enforce policies based on service identity rather than
on network controls. Starting from release 0.5, you can use on relatively unstable layer 3 or layer 4 network identifiers. Starting from
[Istio's authorization feature](/docs/concepts/security/#authorization) to control release 0.5, you can use [Istio's authorization feature](/docs/concepts/security/#authorization)
who can access your services. to control who can access your services.
### Galley ### Galley