The system uses precedence rules to resolve the problems if you inadvertently create a service name redirection file in which an assigned access service name is not uniquely specified.
The first rule defines the highest precedence, the eighth one the lowest.
Rule |
Description |
|---|---|
1 |
All columns are explicitly defined. |
2 |
requested_service and user_id are specified; application_name uses a wildcard character. |
3 |
requested_service and application_name are specified; user_id uses a wildcard character. |
4 |
user_id and application_name are specified; requested_service uses a wildcard character. |
5 |
Only requested_service is specified; user_id and application_name use wildcard character. |
6 |
Only user_id is specified; requested_service and application_name use wildcard character. |
7 |
Only application_name is specified; requested_service and user_id use wildcard character. |
8 |
Nothing is specified; requested_service, user_id, and application_name use wildcard character. |
A null-requested service is treated as any other explicitly-specified service.
|
requested_service |
user_id |
application_name |
assigned_service |
|---|---|---|---|
|
AS400 |
Bob |
isql |
as1 |
|
AS400 |
* |
isql |
as2 |
|
AS400 |
* |
Omni |
omniA |
|
AS400 |
* |
PowerBuilder |
powerB |
|
DB2 |
* |
Omni |
db2omni |
|
DB2 |
* |
* |
db2gen |
|
<tab> |
* |
* |
as3 |
|
* |
* |
* |
as4 |
If Bob requests service AS400 using an isql command, he is redirected to service “as1.”
If anyone other than Bob requests AS400 using an isql command, that person is directed to service “as2.”
Anyone who requests service AS400 using Omni is directed to service “omniA.”
Anyone who requests service AS400 using PowerBuilder® is redirected to service “powerB.”
Anyone who requests service AS400 using any other application is not redirected. Such requests are connected directly to service “AS400.”
Anyone who requests service DB2 UDB using Omni is directed to service “db2omni.”
Anyone who requests service DB2 UDB using any other application is redirected to service “db2gen.”
All Microsoft and earlier Sybase DB-Library clients for which the requested service name is blank are directed to service “as3.”
Finally, all other clients are routed to service “as4.”