This topic provides answers to some commonly asked questions before you purchase Security Center.

I have tried the Enterprise edition of Security Center free of charge. Can I reapply for the free trial?

No, you cannot reapply for the free trial.

Each Alibaba Cloud account is limited to one free trial for the Security Center Enterprise Edition.

How do I apply for the 7-day free trial of the Enterprise edition?

Before you apply for the 7-day free trial, make sure that the following conditions are met:

After you confirm that the conditions are met, perform the following operations to apply for the 7-day free trial:
  1. Open the Security Center product page.
  2. Click Free Trial and log on to the Security Center console by using your Alibaba Cloud account.
  3. In the 7-Day Free Trial dialog box, click Free Trial of Enterprise Edition.
Note Each Alibaba Cloud account is limited to one free trial for the Security Center Enterprise Edition.

Can I purchase Security Center on a monthly basis?

Yes, you can purchase and renew Security Center on a monthly basis. The minimum subscription duration that you can purchase varies based on the number of servers that you want to protect.
  • If the number is in the range of 2 to 10, the minimum subscription duration is six months.
  • If the number is greater than 10, the minimum subscription duration is one month.
Note If the number is 1, the minimum subscription duration is one year.

For more information about the pricing of Security Center, see Billing methods.

The Basic Anti-Virus edition is priced as USD 4.5 per month. Why is the price on the buy page higher than USD 4.5?

The price on the buy page is based on the following two factors:
  • Protected servers

    The number of protected assets represents the total number of assets protected by Security Center, including Alibaba Cloud Elastic Compute Service (ECS) instances and external servers that have the Security Center agent installed. The default value is the total number of ECS instances and external servers that have the Security Center agent installed under your Alibaba Cloud account. If the number of protected servers is greater than 1, the price on the buy page exceeds USD 4.5 per month.

  • Enabled value-added services

    Security Center provides value-added services, such as web tamper protection, log analysis, and ransomware protection. When you purchase Security Center, the default values for log storage capacity and ransomware protection capacity are automatically set. If you do not need log analysis and ransomware protection, you can set the two values to 0 GB.

Buy page settings

If I do not have an Alibaba Cloud Elastic Compute Service (ECS) instance, can I use Security Center to protect servers in on-premises data centers?

Yes, Security Center can protect Alibaba Cloud ECS instances, servers in on-premises data centers, and third-party cloud servers. Security Center can protect servers that have the Security Center agent installed. For more information, see Install the Security Center agent and Use Security Center to protect servers in on-premises data centers.

Can Security Center protect third-party cloud servers?

Yes, Security Center can protect servers from third-party providers, such as Amazon Web Services (AWS), Tencent Cloud, QingCloud, and UCloud. Security Center can protect servers that have the Security Center agent installed. For more information, see Install the Security Center agent on external servers.

How can I use Security Center to protect my servers in on-premises data centers and third-party cloud servers?

Before you can use Security Center to protect the servers in on-premises data centers and third-party cloud servers, you must install the Security Center agent on these servers. For more information, see the following table.

Server type How to use Security Center to protect the servers
Alibaba Cloud ECS instances If you have selected Security Enhancement when you purchase an ECS instance, the Security Center agent is automatically installed and the Basic edition of Security Center is automatically activated. The Basic edition is provided free of charge.
Note The Basic edition of Security Center only detects unusual logons and urgent vulnerabilities. The Basic edition is suitable for individual developers.
If you have not selected Security Enhancement when you purchase an ECS instance, or Security Center prompts that the Security Center agent is offline, perform the following operations to enable Security Center to protect the ECS instance:
  1. Upgrade Security Center to the Basic Anti-Virus, Advanced, or Enterprise edition. For more information, see Purchase Security Center.
    Note The Basic edition of Security Center only detects unusual logons and urgent vulnerabilities. The Basic edition is suitable for individual developers.
  2. Log on to the Security Center console.
  3. Install the Security Center agent on the ECS instance in the Security Center console. For more information, see Manual installation.
Cloud servers from third-party providers To enable Security Center and protect the third-party cloud servers, perform the following operations:
  1. Upgrade Security Center to the Basic Anti-Virus, Advanced, or Enterprise edition. For more information, see Purchase Security Center.
    Note The Basic edition of Security Center only detects unusual logons and urgent vulnerabilities. The Basic edition is suitable for individual developers.
  2. Log on to the Security Center console.
  3. Install the Security Center agent on the ECS instance in the Security Center console. For more information, see Manual installation.
Servers in on-premises data centers

If I have 100 ECS instances, can I activate Security Center for only 10 ECS instances?

No, if you have purchased the Basic Anti-Virus, Advanced, or Enterprise edition of Security Center, you must activate Security Center for all the ECS instances under your current account.

When you purchase the Basic Anti-Virus, Advanced, or Enterprise edition of Security Center, you must specify the number of Protected Assets. The number of protected assets represents the total number of servers under your Alibaba Cloud account. The default value is the total number of your Alibaba Cloud ECS instances plus third-party cloud servers that have the Security Center agent installed.

Does Security Center provide the antivirus service?

Yes, the Basic Anti-Virus, Advanced, or Enterprise edition of Security Center can detect and automatically remove common viruses. For more information, see The anti-virus feature.

Which edition of Security Center do I select if I require automatic vulnerability fix?

The Advanced and Enterprise editions support automatic vulnerability fix.

Which edition of Security Center do I select if I want to meet the testing and evaluation requirements for classified protection?

You must purchase the Enterprise edition of Security Center and enable log analysis, which is a value-added service. For more information about how to enable log analysis, see Activate log analysis.

Note The Enterprise edition of Security Center supports baseline check. You can use this feature in combination with log analysis, which retains log data for 180 days, to meet the testing and evaluation requirements for classified protection.