## Read the Tutorial first

The next sections assume you already read the main [Tutorial - User Guide: Security](../../tutorial/security/index.md){.internal-link target=_blank}.

	// form http://localhost:8181/v1/data/httpapi/authz
	type opaResultAllow struct {
		Result struct {
			Allow bool `json:"allow"`
		} `json:"result"`
	}

	// Handle simpler OPA responses when OPA URL is of
	// form http://localhost:8181/v1/data/httpapi/authz/allow
	type opaResult struct {
		Result bool `json:"result"`
	}

	respBody := bytes.NewReader(opaRespBytes)

bucketPolicyTemplate := `{"Version":"2012-10-17","Statement":[{"Sid":"","Effect":"Allow","Principal":{"AWS":["*"]},"Action":["s3:GetBucketLocation","s3:ListBucket"],"Resource":["arn:aws:s3:::%s"]},{"Sid":"","Effect":"Allow","Principal":{"AWS":["*"]},"Action":["s3:GetObject"],"Resource":["arn:aws:s3:::%s/this*"]}]}`

	bucketPolicyTemplateWithoutVersion := `{"Version":"","Statement":[{"Sid":"","Effect":"Allow","Principal":{"AWS":["*"]},"Action":["s3:GetBucketLocation","s3:ListBucket"],"Re...

            capabilities:
              drop:
              - ALL
              add:
              # CAP_NET_ADMIN is required to allow ipset and route table access
              - NET_ADMIN
              # CAP_NET_RAW is required to allow iptables mutation of the `nat` table
              - NET_RAW
              # CAP_SYS_ADMIN is required for both ambient and repair, in order to open

## Deployment Recommendations

### Allow port access for Firewalls

By default MinIO uses the port 9000 to listen for incoming connections. If your platform blocks the port by default, you may need to enable access to the port.

### ufw

For hosts with ufw enabled (Debian based distros), you can use `ufw` command to allow traffic to specific ports. Use below command to allow access to port 9000

```sh
ufw allow 9000

{{- $statements_length := len .statements -}} {{- $statements_length := sub $statements_length 1 -}} { "Version": "2012-10-17", "Statement": [ {{- range $i, $statement := .statements }} { "Effect": "{{ $statement.effect | default "Allow" }}", "Action": [ "{{ $statement.actions | join "\",\n\"" }}" ]{{ if $statement.resources }}, "Resource": [ "{{ $statement.resources | join "\",\n\"" }}" ]{{ end }} {{- if $statement.conditions }} {{- $condition_len := len $statement.conditions }} {{- $condition_len...

	// 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",
 "Statement": [
  {
   "Effect": "Allow",
   "Action": [
    "s3:ListBucket"
   ],

  cniConfFileName: "istio-cni.conf"
  logLevel: info
  provider: "multus"
pilot:
  cni:
    enabled: true
    provider: "multus"
  variant: distroless
  env:
    PILOT_ENABLE_AMBIENT: "true"
    # Allow sidecars/ingress to send/receive HBONE. This is required for interop.
    PILOT_ENABLE_SENDING_HBONE: "true"
    PILOT_ENABLE_SIDECAR_LISTENING_HBONE: "true"
    CA_TRUSTED_NODE_ACCOUNTS: "istio-system/ztunnel,kube-system/ztunnel"

  cniConfFileName: "istio-cni.conf"
  logLevel: info
  provider: "multus"
pilot:
  cni:
    enabled: true
    provider: "multus"
  variant: distroless
  env:
    PILOT_ENABLE_AMBIENT: "true"
    # Allow sidecars/ingress to send/receive HBONE. This is required for interop.
    PILOT_ENABLE_SENDING_HBONE: "true"
    PILOT_ENABLE_SIDECAR_LISTENING_HBONE: "true"
    CA_TRUSTED_NODE_ACCOUNTS: "istio-system/ztunnel,kube-system/ztunnel"

        server site2-minio4:9000;
    }

    server {
        listen       9002;
        listen  [::]:9002;
        server_name  localhost;

        # To allow special characters in headers
        ignore_invalid_headers off;
        # Allow any size file to be uploaded.
        # Set to a value such as 1000m; to restrict file size to a specific value
        client_max_body_size 0;
        # To disable buffering