Security Center:Install the Security Center agent

Manually install the Security Center agent on a server

1. Log on to the Security Center console. In the top navigation bar, select the region of the asset that you want to manage. The following regions are supported: China and Outside China.

2. In the left-side navigation pane, choose System Configuration > Feature Settings.

3. On the Agent > Installation Command tab, view the command that is required to manually install the Security Center agent.

   • Use a default command

     Security Center provides default commands for ECS instances and servers to which the External host tag is added. You can copy a default installation command based on the type and operating system of your server. Then, run the installation command by using the administrator account to install the Security Center agent on your server.

     Note

     A server on which the Security Center agent is installed by using a default installation command is not added to a server group. You can manually add the server to a server group after you install the Security Center agent on the server. For more information, see Manage servers.

     

   • Create an installation command

     If you want to create an image command or you want Security Center to add the server on which an installation command is run to a specified server group, you can perform the following operations to create an installation command:

     Click Add Installation Command. In the Add Installation Command dialog box, configure the parameters and click OK. Then, view and copy the installation command that is created on the Installation Command tab. The following table describes the parameters.

     Parameter	Description
     Expiration Time	Specify the time when the installation command expires.
     Service Provider	Select the provider of your server from the drop-down list.
     Default grouping	Select the server group for your server on which you want to install the Security Center agent.
     System	Select the operating system for your server on which you want to install the Security Center agent.
     Making Image System	Select No to install the Security Center agent on a single server. If you want to use an image to install the Security Center agent on multiple servers at a time, select Yes. For more information about how to install the Security Center agent on multiple servers at a time, see Install the Security Center agent on multiple servers by creating an image.
     Select Proxy	Specify whether to add the server to Security Center by using the proxy access feature. Valid values: Do Not Access Proxy Self-managed Proxy Cluster: You can select this option to add a server that is inaccessible over the Internet to Security Center for protection by using the proxy access feature. If you select this option, you must select a proxy cluster. For more information about how to use the proxy access feature, see Use the proxy access feature.

4. Log on to the server by using an account that has administrative rights and run the installation command based on the operating system of the server.

   • Windows: Open the Command Prompt window and run the installation command that you copied. Then, the installation package of the Security Center agent is downloaded to and installed on the server.

   • Linux: Open the CLI of the server and run the installation command that you copied. Then, the installation package of the Security Center agent is downloaded to and installed on the server.

Install the Security Center agent on multiple servers by creating an image

1. Log on to the Security Center console. In the top navigation bar, select the region of the asset that you want to manage. The following regions are supported: China and Outside China.

2. In the left-side navigation pane, choose System Configuration > Feature Settings.

3. On the Installation Command tab of the Agent tab, click Add Installation Command.

4. In the Add Installation Command dialog box, configure the parameters and click OK to create an installation command.

   Parameter	Description
   Expiration Time	Specify the time when the installation command expires.
   Service Provider	Select the provider of your server from the drop-down list.
   Default grouping	Select the server group on which the installation command can be run.
   System	Select the operating system of your server.
   Making Image System	Select Yes.

5. Copy the installation command and add the latest version number -v=11_62 of the Security Center agent to the installation command. The setting varies based on the operating system of the server.

   • Windows: powershell -executionpolicy bypass -c "(New-Object Net.WebClient).DownloadFile('http://aegis.alicdn.com/download/install/2.0/windows/AliAqsInstall.exe', $ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath('.\AliAqsInstall.exe'))"; "./AliAqsInstall.exe -i -v=11_62 -k=IMAGEwH****"

   • Linux: wget "https://aegis.alicdn.com/download/install/2.0/linux/AliAqsInstall.sh" && chmod +x AliAqsInstall.sh && ./AliAqsInstall.sh -i -v=11_62 -k=IMAGE19****

6. Log on to the server by using an account that has administrative rights and run the installation command after modification on the server.

   • Windows: Open the Command Prompt window and run the installation command that you copied. Then, the installation package of the Security Center agent is downloaded to and installed on the server.

   • Linux: Open the CLI of the server and run the installation command that you copied. Then, the installation package of the Security Center agent is downloaded to and installed on the server.

   After you run the installation command on the server, the installation package of the Security Center agent is downloaded. After the agent is installed, you can create an image for the operating system of the server. Then, you can use the image as a template to install the Security Center agent on multiple servers at a time. After you create the image, you must restart the server. This way, you can start the processes of the Security Center agent to enable Security Center to protect the server. In this case, the installation command is also referred to as an image command. For more information about the image command, see the "Install the Security Center agent on multiple servers by creating an image" section of this topic.

7. After the Security Center agent is installed, shut down the server as prompted and create an image for the operating system of the server.

   Important

   • You cannot restart the server until the image is created. Otherwise, the image becomes invalid.

   • If you want to create an image for the operating system of the same server multiple times, you must perform all the steps provided in Install the Security Center agent on multiple servers by creating an image each time you create the image.

   • After you run the image command, the AliYunDun and AliYunDunUpdate processes are not started on the server, and the Security Center agent is not in the Online state. You must restart the server. Then, the status of the Security Center agent is updated to Online.

8. After you create the image for the operating system of the server, restart the server.

   After the server is restarted, the status of the Security Center agent on the server changes to Online.

Method 1: Verify the processes of the Security Center agent

After the Security Center agent is installed on a server, you can check whether the processes of the Security Center agent are running as expected and whether the server is connected to Security Center. If yes, the Security Center agent is successfully installed.

1. Check whether the AliYunDun and AliYunDunUpdate processes of the Security Center agent are running as expected on your server. For more information about the processes of the Security Center agent, see Security Center agent.

2. Run the following telnet commands to check whether your server can connect to Security Center:

   Note

   Make sure that your server can connect to at least one of the following JSRV domain names and one of the following update domain names. JSRV domain names are used to issue instructions such as vulnerability detection and virus detection, and update domain names are used to download and update the Security Center agent.

   • telnet jsrv.aegis.aliyun.com 443/80

   • telnet jsrv2.aegis.aliyun.com 443/80

   • telnet jsrv3.aegis.aliyun.com 443/80

   • telnet update.aegis.aliyun.com 443/80

   • telnet update2.aegis.aliyun.com 443/80

   • telnet update3.aegis.aliyun.com 443/80

Method 2: Verify the installation in the Security Center console

Approximately 5 minutes after the Security Center agent is installed, you can check whether the agent of the server is online on the Host page of the Security Center console. If the following conditions are met, the agent is online:

• The icon in the Agent column changes from to .

• Servers that are not deployed on Alibaba Cloud are added to the server list, and the icon in the Agent column changes from to .

  Important

  The information about servers that have the Security Center agent installed is automatically synchronized every minute to the Security Center console. Due to network latency, the information about a server that is not deployed on Alibaba Cloud and has the Security Center agent installed may not be immediately displayed on the Host page. In this case, you must click Synchronize Asset to manually synchronize the server information. For more information, see Synchronize the information about the most recent servers.

If the verification does not pass, check whether the agent is offline. For more information, see Troubleshoot why the Security Center agent is offline.