Maintain the Trusted Servers List.
Subprocedures: ALLOW_ALL Empty the list and inserts a row indicating that all servers should be trusted. ALLOW_SERVER Enable a specific server to be allowed access even though deny all is indicated in the list. DENY_ALL Empty the list and inserts a row indicating that all servers should be untrusted. DENY_SERVER Enable a specific server to be denied access even though allow all is indicated in the list.
For full documentation of the packaged procedures above see the Oracle Manual:
"Oracle9i Supplied PL/SQL Packages and Types Reference"
or the book Oracle Built in Packages by Steven Feuerstein et al
Related: