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| + | == Overview ==  | ||
| − | + | ||
| − | + | ||
| − | + | == Group Policy Example ==  | |
| − | + |  <Domain>  | |
| − | + | ||
     │  |      │  | ||
| + |     ├───<Computer OU>  | ||
| + |     │        │      | ||
| + |     │        └─<span style="color:red">(GPO 1) = Computer Settings 1, User Settings 1</span>  | ||
| + |     │             │  | ||
| + |     │             ├───[LedHed-PC1]  | ||
| + |     │             │  | ||
| + |     │             └───[Server]  | ||
| + |     │               | ||
     │  |      │  | ||
     └───<User OU>  |      └───<User OU>  | ||
| − |               │  | + |               │    | 
| − |               │  | + |               └─<span style="color:green">(GPO 2) = Computer Settings 2, User Settings 2</span>  | 
| − | + |                   │  | |
| + |                   └───────[LedHed]  | ||
| + | |||
| + | '''Legend'''  | ||
| + | {| class="wikitable"  | ||
| + | |-  | ||
| + | !Name                 || Object Type  | ||
| + | |-  | ||
| + | | [LedHed-PC1]        || Computer  | ||
| + | |-  | ||
| + | | [LedHed]            || User  | ||
| + | |-  | ||
| + | |}  | ||
| + | |||
| + | |||
| + | == Standard Group Policy Processing ==  | ||
| + | In the above example there are two Group Policy Objects (GPO).<br>  | ||
| + | :<span style="color:red">GPO 1<br>  | ||
| + | :<span style="color:green">GPO 2<br>  | ||
| + | Each GPO has two settings, Computer and User.<br>  | ||
| + | <br>  | ||
| + | Group Policy applies Computer Settings to Computer Objects and User Settings to User Objects.<br>  | ||
| + | <br>  | ||
| + | Under normal circumstances when the User [LedHed] logs on to Computer [LedHed-PC1] the following GPO settings are applied:<br>  | ||
| + | <span style="color:red">Computer Settings 1</span><br>  | ||
| + | <span style="color:green">User Settings 2</span><br>  | ||
| + | |||
| + | |||
| + | == Loopback Processing ==  | ||
| + | Loopback Processing changes the default behavior described above.<br>  | ||
| + | There are two modes '''''Replace''''' and '''''Merge'''''<br>  | ||
| + | === Replace Mode===  | ||
| + | With Loopback Processing enabled in REPLACE mode, when User [LedHed] logs on to Computer [LedHed-PC1] the following GPO settings are applied:<br>  | ||
| + | <span style="color:red">Computer Settings 1</span><br>  | ||
| + | <span style="color:red">User Settings 1</span><br>  | ||
| + | As you can see <span style="color:red">User Settings 1</span> replaced <span style="color:green">User Settings 2</span>  | ||
| + | |||
| + | === Merge Mode ===  | ||
| + | With Loopback Processing enabled in MERGE mode, when User [LedHed] logs on to Computer [LedHed-PC1] the following GPO settings are applied:<br>  | ||
| + | <span style="color:red">Computer Settings 1</span><br>  | ||
| + | <span style="color:red">User Settings 1</span><br>  | ||
| + | <span style="color:green">User Settings 2</span><br>  | ||
| + | |||
| + | In this mode both <span style="color:red">User Settings 1</span> and <span style="color:green">User Settings 2</span> are applied, but if there is a conflict between these policies, then <span style="color:red">User Settings 1</span> takes priority.  | ||
Latest revision as of 01:29, 2 February 2013
Contents
Overview
Group Policy Example
<Domain> │ ├───<Computer OU> │ │ │ └─(GPO 1) = Computer Settings 1, User Settings 1 │ │ │ ├───[LedHed-PC1] │ │ │ └───[Server] │ │ └───<User OU> │ └─(GPO 2) = Computer Settings 2, User Settings 2 │ └───────[LedHed]
Legend
| Name | Object Type | 
|---|---|
| [LedHed-PC1] | Computer | 
| [LedHed] | User | 
Standard Group Policy Processing
In the above example there are two Group Policy Objects (GPO).
- GPO 1
 - GPO 2
 
Each GPO has two settings, Computer and User.
Group Policy applies Computer Settings to Computer Objects and User Settings to User Objects.
Under normal circumstances when the User [LedHed] logs on to Computer [LedHed-PC1] the following GPO settings are applied:
Computer Settings 1
User Settings 2
Loopback Processing
Loopback Processing changes the default behavior described above.
There are two modes Replace and Merge
Replace Mode
With Loopback Processing enabled in REPLACE mode, when User [LedHed] logs on to Computer [LedHed-PC1] the following GPO settings are applied:
Computer Settings 1
User Settings 1
As you can see User Settings 1 replaced User Settings 2
Merge Mode
With Loopback Processing enabled in MERGE mode, when User [LedHed] logs on to Computer [LedHed-PC1] the following GPO settings are applied:
Computer Settings 1
User Settings 1
User Settings 2
In this mode both User Settings 1 and User Settings 2 are applied, but if there is a conflict between these policies, then User Settings 1 takes priority.