docs/oracle: add wallet permissions example (#13924)

* docs/oracle: add wallet permissions example

* Update website/content/docs/secrets/databases/oracle.mdx
Co-authored-by: John-Michael Faircloth <fairclothjm@users.noreply.github.com>
Co-authored-by: John-Michael Faircloth <fairclothjm@users.noreply.github.com>

website/content/docs/secrets/databases/oracle.mdx

@@ -106,9 +106,6 @@ pluggable databases rather than the container database in the `connection_url` f
 
 ### Connect Using SSL
 
-~> **Note**: The wallets used when connecting via SSL should be available on every Vault
-server when using high availability clusters.
-
 If the Oracle server Vault is trying to connect to uses an SSL listener, the database
 plugin will require additional configuration using the `connection_url` parameter:
 
@@ -133,6 +130,21 @@ vault write database/config/oracle \
   password="password"
 ```
 
+#### Wallet Permissions
+
+~> **Note**: The wallets used when connecting via SSL should be available on every Vault
+server when using high availability clusters.
+
+The wallet used by Vault should be in a well known location with the proper filesystem permissions. For example, if Vault is running as the `vault` user, 
+the wallet directory may be setup as follows:
+
+```shell
+mkdir -p /etc/vault/wallets
+cp cwallet.sso /etc/vault/wallets/cwallet.sso
+chown -R vault:vault /etc/vault
+chmod 600 /etc/vault/wallets/cwallet.sso
+```
+
 ### Using TNS Names
 
 ~> **Note**: The `tnsnames.ora` file and environment variable used when connecting via SSL should