Default values for the Outlook Web Access (OWA) virtual directory configuration regarding Enterprise Vault (EV) in an Exchange Front-end and Back-end environment.
Article ID: 100017754
Updated On:
Resolution
Below are the default configuration settings for the Exchange and EV virtual directories (VD) that handle EV communication in OWA:
Front-end server :
An Exchange "Front-end" server is typically accessible externally which does not have Information Stores associated.
Front-end server :
An Exchange "Front-end" server is typically accessible externally which does not have Information Stores associated.
| Virtual Directory | Created By | Protocol | Auth | Application Pool | Execute permissions |
|---|---|---|---|---|---|
| Exchange | Exchange install | HTTP(S) | Basic | ExchangeApplicationPool | none |
| Public | Exchange install | HTTP(S) | Basic | ExchangeApplicationPool | none |
| EnterpriseVaultProxy | EV OWA Configuration | HTTP(S) | Basic | DefaultAppPool | Scripts |
Note: For the EnterpriseVaultProxy VD, "Enable parent path" is also enabled.
Back-end server :
An Exchange "Back-end" server will be internal and will hold the Information Stores. For external access, typically, requests are sent to a "Front-end" which is then proxied to the "Back-end".
| Virtual Directory | Created By | Protocol | Auth | Application Pool | Execute Permissions |
|---|---|---|---|---|---|
| Exchange | Exchange Install | HTTP(S)* | Basic/ NTLM** | ExchangeApplicationPool | none |
| Public | Exchange Install | HTTP(S)* | Basic/ NTLM** | ExchangeApplicationPool | none |
| EVOWA | EV OWA Configuration | HTTP | Basic | ExchangeApplicationPool | Scripts |
| EnterpriseVaultExchange | EV OWA Configuration | HTTP | Basic/ NTLM** | ExchangeApplicationPool | Scripts |
| EnterpriseVaultPublic | EV OWA Configuration | HTTP | Basic/ NTLM** | ExchangeApplicationPool | Scripts |
| EnterpriseVaultProxy | EV OWA Configuration | HTTP(S) | Basic | DefaultAppPool | Scripts |
Notes:
a. For the EnterpriseVaultProxy VD, "Enable parent path" is also enabled.
b. * - Unless if query originates from a Front-end Server.
c. ** - NTLM (NT LAN Manager) is also known as Integrated Windows Authentication (IWA) in IIS 6.0 and Windows Authentication in IIS 7.0.
Issue/Introduction
When a user attempts to preview or restore archived mail items via Exchange Outlook Web Access (OWA), various Internet Information Services (IIS) errors may occur. These types of errors may originate with the current Virtual Directory configuration on the Exchange Front-end or Back-end servers.
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