Application-protected web resources
Protected web resources are available in Access Gateway version 2022.1.1 and later to support Access Gateway load balancing.
The Protected Web Resource page includes information on load balancing or back end protected web resources, load balancing health checks, host headers, and so on. It includes the following:
| Field | Description |
Default |
|---|---|---|
| Load Balancing by Access Gateway | Enables or disables load balancing. When enabled, URL scheme, and configured protected web resources, can be entered, as well as other options. |
Disabled |
| Load Balancer Health Check | Enables or disables load balancing health checks. Use the Edit button to configure load balancer health checks. |
Disabled |
| URL scheme | The URL scheme or protocol used to access back end protected resources. Supported schemes are HTTP and HTTPS. |
HTTP |
| Host Header Host Header Value |
Represents the value of the host header passed to the back end protected web resources. When enabled, the external fully qualified external name is used (for example, noauth.atko.com). When disabled, a custom value may be entered. |
Disabled application specific |
| Load Balancing Cookie | Cookie value associated with each request sent to back end protected web resources. |
Generate value |
| Configured Protected Web Resources | A set of back end protected web resources including weights. Prefixed by URL scheme. See Add Protected Web Resource. | N/A |
Add Protected Web Resource
Click Add Protected Web Resource to add a protected web resource.
| Field | Description |
|---|---|
| Hostname | Fully qualified host name of the protected web resource. Must be resolvable in DNS. |
| Weight |
Associated weight. Value from 0-100. 0 (zero) is a special value that means a host is not in use. Three protected web resources, where each has a weight of 1, have an equal number of requests routed to each of them. Two protected web resources, that have weights 1 and 2, have twice as many requests (or 66% of the total number of requests) routed to the hostname with a weight of 2, compared to the hostname with a weight of 1. |
Health checks
Health checks are used to determine if a back end protected web resource can service requests.
| Field | Value |
Default |
|---|---|---|
| Path | URI to resource used in health check. | / |
| Method | HTTP method used. | Always GET |
| Status code | HTTP status code used to determine health. | 200 |
| Interval | Interval between health checks in seconds. | 10 |
| Request timeout | Health check request timeout in seconds. | 1 |
| Healthy threshold | Number of successful requests before a host is considered healthy. | 3 |
| Unhealthy threshold | Number of failed requests before a host is considered unhealthy. | 3 |
Protected web resources can be in one of three states:
| State |
Icon |
Description |
|---|---|---|
| Active |
|
Initial state, host entered and active but health unknown. When health checks are disabled, protected web resources never leave this state. |
| Healthy |
|
Host is responding based on health check settings. |
| Unhealthy |
|
Host isn't responding; new requests won't be routed to it. |