AWS EC2：网络负载均衡器有安全组吗？

Question

在文档中：https://docs.aws.amazon.com/elasticloadbalancing/latest/application/load-balancer-update-security-groups.html 编辑负载均衡器的安全组时提示如下：

Update the associated security groups
You can update the security groups associated with your load balancer at any time.

To update security groups using the console:

1. Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/.

2. On the navigation pane, under LOAD BALANCING, choose Load Balancers.

3. Select the load balancer.

4. On the Description tab, under Security, choose Edit security groups.

5. To associate a security group with your load balancer, select it. To remove a security group from your load balancer, clear it.

6. Choose Save.

但是，对于我的网络负载均衡器，我无法选择“编辑安全组”选项。它是灰色的：

那么如何编辑它的安全组呢？

由于安全组配置，当前对 NLB 的请求无法传递到目标组中的 EC2 实例。

为什么我不能编辑？？

Answer 1

不，网络负载均衡器没有安全组。您应该根据 IP 地址或 CIDR 块将安全组直接添加到 EC2 目标。

见：Target Security Groups - Elastic Load Balancing