MinIO supports multiple admin users in addition to default operator credential created during server startup. New admins can be added after server starts up, and server can be configured to deny or allow access to different admin operations for these users. This document explains how to add/remove admin users and modify their access rights.

## Get started

When configured, MinIO sends request and credential details for every API call to an external HTTP(S) endpoint and expects an allow/deny response. MinIO is thus able to delegate access management to an external system, and users are able to use a custom solution instead of S3 standard IAM policies.

			// the policy engine matches all Deny statements first, without regard to Resources (for KMS).
			// This is for backwards compatibility where historically KMS statements ignored Resources.
			policy: `{
						"Effect": "Allow",
						"Action": ["kms:ListKeys"]
					},{
						"Effect": "Deny",
						"Action": ["kms:ListKeys"],
						"Resource": ["arn:minio:kms:::default-test-key"]

MinIO supports multiple long term users in addition to default user created during server startup. New users can be added after server starts up, and server can be configured to deny or allow access to buckets and resources to each of these users. This document explains how to add/remove users and modify their access rights.

## Get started

	ctx, cancel := context.WithTimeout(context.Background(), testDefaultTimeout)
	defer cancel()

	// 1. Create a policy
	policy1 := "deny-svc"
	policy2 := "allow-svc"
	policyBytes := []byte(`{
 "Version": "2012-10-17",
 "Statement": [
  {
   "Effect": "Deny",
   "Action": [
    "admin:CreateServiceAccount"
   ]
  }
 ]
}`)

	newPolicyBytes := []byte(`{
 "Version": "2012-10-17",

      throw death;
    } catch (Throwable t) {
      /*
       * This is not one of AppEngine's allowed classes, so even in Sun JDKs, this can fail with
       * a NoClassDefFoundError. Other apps might deny access to sun.misc packages.
       */
      return null;
    }
  }

  /**
   * Returns the Method that can be used to resolve an individual StackTraceElement, or null if that

```

</details>

**Note that by default no policy is set on a user**. Thus even if they successfully authenticate with AD/LDAP credentials, they have no access to object storage as the default access policy is to deny all access.

## API Request Parameters

### LDAPUsername

Is AD/LDAP username to login. Application must ask user for this value to successfully obtain rotating access credentials from AssumeRoleWithLDAPIdentity.

    public static final int SE_GROUP_ENABLED = 4;
    /** Security group attribute: Group can be assigned as owner of objects */
    public static final int SE_GROUP_OWNER = 8;
    /** Security group attribute: Group is used for deny-only checks */
    public static final int SE_GROUP_USE_FOR_DENY_ONLY = 16;
    /** Security group attribute: Domain-local group */
    public static final int SE_GROUP_RESOURCE = 536870912;

    public static final int SE_GROUP_ENABLED = 4;
    /** Security group attribute: Group can be assigned as owner of objects */
    public static final int SE_GROUP_OWNER = 8;
    /** Security group attribute: Group is used for deny-only checks */
    public static final int SE_GROUP_USE_FOR_DENY_ONLY = 16;
    /** Security group attribute: Domain-local group */
    public static final int SE_GROUP_RESOURCE = 536870912;

					errors.New("service accounts cannot be generated for temporary credentials without parent")), r.URL)
				return
			}
			targetUser = requestorParentUser
		}
		targetGroups = requestorGroups

		// Deny if the target user is not LDAP
		foundResult, err := globalIAMSys.LDAPConfig.GetValidatedDNForUsername(targetUser)
		if err != nil {
			writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
			return
		}