Updating a rule in an ARL profile

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Updated at April 23, 2025

You can only update ARL rules in an ARL profile. Basic rules, as well as Smart Protection and WAF rules, are updated in a security profile.

Management console

Terraform

API

In the management console, select the folder the ARL profile resides in.
From the list of services, select Smart Web Security.
In the left-hand panel, select ARL profiles.
Select the profile to update a rule in.

In the rule row, click and select Edit. In the window that opens:

Edit the basic rule settings:
- Name.
- Description.
- Rule priority. The smaller the value, the higher is the rule priority.
- Dry run (logging without request blocking) settings.
Under Conditions for traffic, specify which traffic the rule will be used to analyze:
- All traffic: The rule will be used to analyze the whole traffic.
- On condition: The rule will be used to analyze the traffic specified in the Conditions field:
  - IP: IP address, IP address range, IP address region, or address list.
  - HTTP header: HTTP header string.
  - Request URI: Request path.
  - Host: Domain receiving the request.
  - HTTP method: Request method.
  - Cookie: Cookie header string.
  You can set multiple conditions. To do this, select all the condition types you need in the Conditions field.
  
  You can also set multiple conditions of the same type. To do this, click and or or in the section with the condition you need.
  
  To delete a condition, click .

Change the request counting method and grouping criteria:

No grouping: Counting each request individually.

Grouping by property: Counting request groups sharing one or more common properties.

Select a grouping property:

Automatic grouping	Grouping by key
`Request path`: Request path	`HTTP cookie`: String in the cookie header
`HTTP method`: Request method	`HTTP header`: String in the HTTP header
`IP address`: IP address the request came from	`Query params`: String in the request parameters
`Region`: IP address region of the requests
`Host`: Domain receiving the request

To group by key, specify the key value.

(Optional) Enable Case-sensitive to put properties with the same values in different cases into different groups.

Specify a request limit or request limit per group as well as a time interval (from 1 second to 60 minutes) for the limit. All requests above the limit will be blocked.

Click Save rule.

With Terraform, you can quickly create a cloud infrastructure in Yandex Cloud and manage it using configuration files. These files store the infrastructure description written in HashiCorp Configuration Language (HCL). If you change the configuration files, Terraform automatically detects which part of your configuration is already deployed, and what should be added or removed.

Terraform is distributed under the Business Source License. The Yandex Cloud provider for Terraform is distributed under the MPL-2.0 license.

For more information about the provider resources, see the documentation on the Terraform website or mirror website.

If you do not have Terraform yet, install it and configure its Yandex Cloud provider.

To update a rule in an ARL profile:

Open the Terraform configuration file and update the advanced_rate_limiter_rule security rule section in the yandex_sws_advanced_rate_limiter_profile ARL profile description.

# ARL profile

resource "yandex_sws_advanced_rate_limiter_profile" "arl-profile" {
  name        = "<profile_name>"
  description = "<profile_description>"


  # Rule 1

  advanced_rate_limiter_rule {
    name        = "<new_rule_name>"
    priority    = <new_rule_priority>
    description = "<new_rule_description>"
    dry_run     = true

    static_quota {
      action = "DENY"
      limit  = <new_rule_limit>
      period = <new_rule_period>
      condition {
        request_uri {
          path {
            exact_match = "/api"
          }
        }
      }
    }
  }

  # Rule 2

  advanced_rate_limiter_rule {
    name        = "<rule_name>"
    priority    = <rule_priority>
    description = "<rule_description>"
    dry_run     = true

    static_quota {
      action = "DENY"
      limit  = <rule_limit>
      period = <rule_period>
      condition {
        source_ip {
          geo_ip_match {
            locations = ["ru", "kz"]
          }
        }
      }
    }
  }
}

For more information about the yandex_sws_advanced_rate_limiter_profile resource parameters, see the provider documentation.

Apply the changes:
1. In the terminal, change to the folder where you edited the configuration file.
2. Make sure the configuration file is correct using the command:
```
terraform validate
```
  If the configuration is correct, the following message is returned:
```
Success! The configuration is valid.
```
3. Run the command:
```
terraform plan
```
  The terminal will display a list of resources with parameters. No changes are made at this step. If the configuration contains errors, Terraform will point them out.
4. Apply the configuration changes:
```
terraform apply
```
5. Confirm the changes: type yes in the terminal and press Enter.
You can check the resources’ updates in the management console.

Use the update REST API method for the AdvancedRateLimiterProfile resource or the AdvancedRateLimiterProfile/Update gRPC API call.

Updating a rule in an ARL profile

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