Enable Intrusion Detection System (IDS)

1. Log in to your Cloudflare dashboard Open external link , and select your account.
2. Select Magic Firewall > IDS.
3. Enable IDS.

To start using IDS via the API, first create a new ruleset in the magic-transit-ids-managed phase with a rule which is enabled.

1. Follow instructions in the Rulesets Engine Page to view all rulesets for your account. You must see a ruleset with phase magic-transit-ids-managed and kind managed. If not, please contact your account team. The managed ruleset ID will be used in the next step.

2. Create a new root ruleset with a single rule in the magic_transit_ids_managed phase by running:

curl https://api.cloudflare.com/client/v4/accounts/{account_id}/rulesets \
--header "X-Auth-Email: <EMAIL>" \
--header "X-Auth-Key: <API_KEY>" \
--header "Content-Type: application/json" \
--data '{
  "name": "IDS Execute ruleset",
  "description": "Ruleset to enable IDS",
  "kind": "root",
  "phase": "magic_transit_ids_managed",
  "rules": [
    {
      "enabled": true,
      "expression": "true",
      "action": "execute",
      "description": "enable ids",
      "action_parameters": {
        "id": "${managed_ruleset_id}"
      }
    }
  ]
}'

With this ruleset added, IDS will start inspecting packets and report any anomalous traffic. Next, you can configure Logpush to start receiving details about the anomalous traffic.

3. Use the rule created in the previous step to enable or disable IDS. The Rulesets API documentation describes how to patch a rule.
   
   For example, the following patch request to set the enabled field to false will disable IDS. The ruleset and rule ID from the ruleset created in the previous step are used below.

curl --request PATCH \
https://api.cloudflare.com/client/v4/accounts/{account_id}/rulesets/{root_ruleset_id}/rules/{rule_id} \
--header "X-Auth-Email: <EMAIL>" \
--header "X-Auth-Key: <API_KEY>" \
--header "Content-Type: application/json" \
--data '{
  "enabled": false,
  "expression": "true",
  "action": "execute",
  "action_parameters": {
    "id": "${managed_ruleset_id}"
  }
}'

Similarly, sending a patch request with the enabled field set to true will enable IDS.