DFS - Specify RPC Client's Default Server Address

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# DFS - Specify RPC Client's Default Server Address

This Natural profile parameter can be used to define an RPC default server address by specifying up to 5 positional subparameters.

Possible settings | See DFS Parameter Syntax.
Default setting | none | Subparameter defaults, see DFS Parameter Syntax.
Dynamic specification | yes | See below.
Specification within session | yes | At runtime, this value can be overwritten using the Natural application programming interface `USR2007N`.
Application programming interface | `USR2007N` | See Application Programming Interfaces for Use with Natural RPC in the Natural RPC (Remote Procedure Call) documentation and SYSEXT - Natural Application Programming Interfaces in the Utilities documentation.

Notes:

1. `DFS` is specified on the client side only.
2. `DFS` determines the server name, the server node, the logon indicator and the transport protocol. The default server address will be used only if no appropriate server is found in the service directory. For further information, see Specifying RPC Server Addresses in the Natural RPC (Remote Procedure Call) documentation.

#### DFS Parameter Syntax

The parameter syntax is as follows:

DFS=(server-name,server-node,logon-indicator,transport-protocol-name,service-directory-indicator)

Where:

Syntax Element | Value | Explanation
--- | --- | ---
`server-name` | 1 - 32 characters | Valid server name. See also parameter `SRVNAME`. There is no default, the value must be specified.
`server-node` | 1 - 192 characters | Node name. See also parameter `SRVNODE`. There is no default, the value must be specified.
`logon-indicator` | `L` | The client initiates a Natural logon to the server with the library name of the current library on the client. On Windows platforms: Instead of specifying `L`, check the selection box.
`` (blank) | Blank means that no server logon will be executed. If nothing is specified, this is the default.
`transport-protocol-name` | `ACI` | The transport protocol to be used. `ACI` is the only possible value and the default.
`service-directory-indicator` | `SERVDIR` | A service directory must be present before the `DFS` profile parameter is evaluated.
`NOSERVDIR` | No service directory is used before the `DFS` profile parameter is evaluated; that is, a service directory needs not be available on the client side. If nothing is specified, `SERVDIR` is the default.