Aws ssm run command as different user. Run Command is offered at no additional cost.

Aws ssm run command as different user Jan 6, 2020 · Background I want to automatically configure an EC2 via a build, using the aws cli and ssm. Allowed commands vary by group, meaning you need to allow different sets of commands based on the group of users. Use the following procedures to create a State Manager association that runs an automation using the AWS Systems Manager console and AWS Command Line Interface (AWS CLI). Learn about technical details and requirements to help you implement and use SSM Agent in your Systems Manager operations. Use Run Command from the AWS Management Console to configure managed nodes without having to log into them. The instance IDs where the command should run. This will allow you to access the instance without relying on RDP. For information, see Installing or updating the latest version of the AWS CLI. access & secret key) or role to trigger the command. Article by Nick Frichette Run Shell Commands on EC2 with Send Command or Session Manager After escalating privileges in a target AWS account or otherwise gaining privileged access you may want to run commands on EC2 instances in the account. If The instance IDs where the command should run. For more information, see Automating updates to SSM Agent. For information about how to use a Query API, see Making API requests . I'm trying to use aws ssm to run a powershell script, the script takes a parameter which is a file name. Nov 12, 2025 · Here comes our savior AWS System Manager also known as SSM which you can use to view and control your infrastructure and allows its users to run remote commands without the need for SSH, you can view operational data from multiple AWS services and automate operational tasks across your AWS resources. For information about installing and using the AWS CLI, see the AWS Command Line Interface User Guide. You can create State Manager associations that run Ansible playbooks by using the AWS-ApplyAnsiblePlaybooks SSM document. AWS CLI > aws ssm list-commands --command-ID 654eb74d-d1bc-4c32-8d5f-98d1dc602e94 Jan 14, 2025 · The policy document explains why we can list the inline policies, some of these actions where detected by aws-enumerator. For more information about how to use targets, see Using targets and rate controls to send commands to a fleet in the AWS Systems Manager User Guide Mar 2, 2023 · Using AWS Systems Manager Run Command allows you to run scripts as a non-root user without modifying the User Data script, but it requires creating a Systems Manager document and running the document using the AWS CLI or the AWS Management Console. Mar 10, 2022 · Without "run as" option the "ssm-user" is created during the first session. Check the SSM Agent version number on your instance and update the SSM Agent, if necessary. 0. ssm-admin is the root user. 3. Example 5: To run a command that outputs to S3 and CloudWatch When you run a Systems Manager command on the instance, SSM Agent might try to use credentials different from the ones you expect it to use, such as from a credentials file instead of an instance profile. All sessions are logged to Session Manager and you can restrict access to authorized groups of IAM users using policies. Learn how to run parameters in Parameter Store, a tool in AWS Systems Manager, by using either Run Command on the Systems Manager console or the AWS CLI. Either sudo to ec2-user or provide the config file to the root user in the appropriate location (probably /root/. It allows for shell access to EC2 instances without needing to open up SSH ports to the world or configure security groups. Execute command : Example usage via AWS CLI: Execute the following command to retrieve the services running on the instance. This section includes information about how to send commands from the AWS Systems Manager console to managed nodes. aws ssm list-document-versions \ --name "document name" Run the following command to run a command that uses an SSM document version. Nov 1, 2022 · The SSM agent runs on EC2 instances as the root user, not ec2-user or ubuntu (for Ubuntu images). For more information about how to use targets, see Using targets and rate controls to send commands to a fleet in the AWS Systems Manager User Guide . For more information about tagging Would executions on an activated instance from another AWS account populate properly in SSM on that specific AWS account? For example, if I ran a patch update from a central account on a child account, would SSM on that child account show the instance as being properly patched? Would their start to be issues as the number of instances grew? In Systems Manager, an Amazon-owned SSM document is a document created and managed by Amazon Web Services itself. DocumentName If the Command type document is owned by you or Amazon, specify the name of the document. For information, see Setting up Session Manager. In the navigation pane, choose Run Command. State Manager is a tool in AWS Systems Manager. Type: String Required: Yes InstanceIds The instance IDs Turn on Run As support for Linux managed nodes. Then select EC2 Instances by your preferred method under “Target Selection”. (On Linux and macOS machines, this account is added to /etc/sudoers/. In For information about each of the tools that comprise Systems Manager, see Using Systems Manager tools in the Amazon Web Services Systems Manager User Guide . But I'm not sure if invoke-command will work in SSM Run command though. Aug 30, 2024 · Background AWS’s SSM Session Manager service is pretty nice. how to run ssm run-commands as ubuntu user. Replace Instance-ID with ec2 instance id. I have the need to run a powershell script "As a different user" during the process of an SSM command. The Amazon EC2 Simple Systems Manager (SSM) Agent is software developed for the Simple Systems Manager Service. If the instance where the Run Command is being executed is domain joined, then it will have a computer object in Active Directory. I'm not sure how that would happen. Feb 22, 2021 · AWS SSM Run Command is genius utility to run a command across the fleet of instances. The problem is ssm run-command always executes as root user which does not have s3 permissions. Is there a way for SSM to intercept all the commands once connected to the EC2 and log them (to CloudWatch, S3 or anywhere else) ? I have setup CloudWatch & S3 logging in SSM preferences, but it only logs commands when Oct 26, 2017 · I'm trying to do a simple AWS CLI command that can run a shell command to multiple instances. When you run the command, the system locates and attempts to run the command on all managed nodes that match the specified tags. e. Since the SSM agent runs under a privileged user on the OS, you can perform OS-level commands through SSM. Further, AWS developed a Session Manager plugin with AWS CLI, allowing AWS CLI as a proxy command when making an SSH connection. Use the AWS CLI 2. ssm-user is Session Manager’s default user name and it has root permissions. ps1 fails when there's a space in filename. Replace each example resource placeholder with your own information. Learn how to run parameters in Parameter Store, a tool in Amazon Systems Manager, by using either Run Command on the Systems Manager console or the Amazon CLI. There is also the possibility to su automatically at the beginning of the session, by adding proper commands into profile. Oct 26, 2022 · Unfortunately, it is impossible to log in with the SSM Session as another user then ssm-user. Nov 9, 2021 · AWS Systems Manager: Gain visibility and control of your AWS infrastructure with a unified user interface and automate operational tasks. For more information about how to use shared documents, see Sharing SSM documents in the AWS Systems Manager User Guide. To run a shared document belonging to another account, specify the document Amazon Resource Name (ARN). For an example of referencing a parameter in the AWS CLI, see Run a parameter (AWS CLI). May 31, 2017 · WindowTargetId : Get the details of a Run Command invocation To get the specific results from the Run Command invocation (for instance the output of the command), you use the ExecutionId field from the task invocation above with the Run Command ListCommands API. In the console, you can view session details such as the following: The name of the AWS Systems Manager document (SSM document) to run. Nov 9, 2022 · Yes, you can execute a bash script via ssm document, use aws provided ssm document "aws:runShellScript" to execute your script. To get started with Run Command, open the Systems Manager console. For more information, see AWS Systems Manager Change Manager availability change. You can monitor command statuses using the following methods: The following examples show how to use the AWS Tools for Windows PowerShell to view information about commands and command parameters, how to run commands, and how to view the status of those commands. Mar 19, 2024 · AWS Systems Manager provides configuration management, which helps you maintain consistent configuration of your Amazon EC2 or on-premises instances. For secure string parameters, you must first decrypt the parameter. While you can also run remote documents by using State Manager or Automation, tools in AWS Systems Manager, the following procedure describes only how to run remote SSM documents by using AWS Systems Manager Run Command in the Systems Manager console. Example 4: To run a command that sends SNS notifications The following send-command example runs a command that Dec 4, 2024 · To transfer parameter to the Lambda function from the main SSM document use this syntax: (Strangely enough, this is not mentioned on AWS documentation, I was breaking my head on finding a solution for a good hour. This document offers the following benefits for running playbooks: The following code examples show you how to perform actions and implement common scenarios by using the AWS Command Line Interface with Systems Manager. Mar 20, 2017 · I am trying to setup and assign a policy so that a user can only trigger AWS Systems Manager Services (SSM) Run Commands on only authorized or assigned EC2 instances to them. Install and configure the AWS Command Line Interface (AWS CLI), if you haven't already. 0 or later. Can I configure the ssm-agent to create and run the shell script at another location, for example /home/my-local-user/ssm ? Mar 7, 2024 · At first, you will create an Identity and Access Management (IAM) role, enable an agent on your instance that communicates with Systems Manager, then follow best practices by running the AWS-UpdateSSMAgent document to upgrade your Systems Manager Agent, and finally use Systems Manager to run a command on your instance. using command aws ssm start-session --target i-yyyaf4692d801d1xx --region ap-south-1 but it was failing with respo AWS Systems Manager Agent (SSM Agent) runs on Amazon Elastic Compute Cloud (Amazon EC2) instances and other machine types in hybrid and multicloud environments using root permissions (Linux) or SYSTEM permissions (Windows Server). May 19, 2025 · Connect to this instance and create another user named dev by executing sudo useradd dev command. Hello All, I have a solution to allow customers to access ec2 linux instance via Session manager, but after login, the user is ssm-user, Is there any way to changed to ec2-user automatically. For information about other API actions you can perform on EC2 instances, see the Amazon EC2 API Reference . . I use SSM with the "StartSSHSession" document to ssh to servers (with something like ssh -o ProxyCommand="sh -c 'aws ssm start-session --document-name AWS-StartSSHSession'"). For general information about associations and information about creating an association that uses an SSM Command document or Policy document, see Creating associations. Your config profile was probably added as the ec2-user, hence it's not available to the root user. Jan 18, 2024 · Next, under “Command document” search for “shell” to find AWS-RunShellScript and select it. DocumentName If the Command type document is owned by you or AWS, specify the name of the document. Tha Run the specified commands. To get started, verify prerequisites and configure managed instances. Select Enable Run As support for Linux instances and set default user to ssm-user. In the situation where the Administrator account is disabled on an EC2 Windows instance and the user account's password has expired, you can try the following steps to regain access: Connect to the EC2 Windows instance using EC2 Instance Connect or AWS Systems Manager Session Manager, if they are enabled for your instance. For information about AppConfig, a tool in Systems Manager, see the Jun 26, 2023 · In this article, we will see how to execute a shell script in EC2 using AWS Systems Manager (SSM) and capture the logs in AWS CloudWatch. By default, Session Manager authenticates connections using the credentials of the system-generated ssm-user account that is created on a managed node. ``` New-ADUser -Name 'Batman Gotham' -AccountPassword (ConvertTo-SecureStri Run automations in multiple Regions and accounts or OUs to reduce the time required to administer AWS resources and enhance security. Aug 8, 2021 · The awscli command uses the "default user on the instance" and that default user is determined by the AMI. Step2: Go to Session Manager and edit preferences. If I configure SSM and set "run as" and as default user use "ssm-user" I'm unable to login into new vm's. If you prefer not to list individual instance IDs, you can instead send commands to a fleet of instances using the Targets parameter, which accepts EC2 tags. You can use the AWS Systems Manager console or the AWS Command Line Interface (AWS CLI) to view information about sessions in your account. If you use any global condition keys for the SendCommand action in your IAM policies, you must include the aws:ViaAWSService condition key and set the boolean value to true. For more information about how to use targets, see Sending commands to a fleet in the AWS Systems Manager User Guide . Is it possible to somehow login as ec2-user from system manager or change users while logged in? The local account ssm-user is only used when you connect to the instance using SSM Session Manager. Jan 7, 2021 · The first statement block in this policy lets federated users navigate to the AWS Systems Manager console, list the EC2 instances available to connect, and view Session Manager sessions. For details about predefined runbooks for Automation, a tool in Amazon Web Services Systems Manager, see the * Systems Manager Automation Runbook Reference * . This makes it possible to start sessions using the credentials of a specified operating system user instead of the credentials of a system-generated ssm-user account that AWS Systems Manager Session Manager can create on a managed node. The most interesting of these actions is the “ ssm:SendCommand ” action or permission to an EC2 instance i-0deeb1dee6049e063. Then, under “Command parameters” type in the shell command you want to run on your EC2 instances. Before you start a session, make sure that you have completed the setup steps for Session Manager. aws/). You can also allow the users to start sessions based on the tags When I use the AWS Run Command to send and execute command on my server, it create and run a shell script at var/lib/amazon/ssm/. I am trying to run a PowerShell command to create an ad user in an active directory hosted in one of the EC2 instances. May 25, 2017 · In this blog post, I will show you how to execute configuration management directives using Ansible on your instances using State Manager and Run Command, and the new “AWS-RunAnsiblePlaybook” public document. 196. However I've checked in aws ec2 help, but I can't find the relev Use the Amazon CLI to view information about commands and command parameters, how to run commands, and how to view the status of those commands. Oct 10, 2024 · You can run commands either via the AWS Management Console, the AWS CLI, or through an automation process like SSM documents. Discover how to manage operating system user accounts and groups on managed nodes using Fleet Manager, a tool in AWS Systems Manager. It looks like you claim to have an Amazon Linux instance whose default user is typically ec2-user but SSM thinks it is ubuntu and that user doesn't actually exist. If you are a System administrator and assigned a task to upgrade the packages for one application running on an EC2 instance, but due to some security restrictions, you are not permitted to access production instances via SSH or bastion host. Ultimately, the choice of method depends on your specific use case and requirements. aws ssm send-command \ --targets "Key=tag:ENV,Values=Dev" \ --document-name "AWS-RunShellScript" \ --parameters "commands=ifconfig" See example 1 for sample output. This can be a public document or a custom document. AWS SSM cannot perform any actions on EC2 instances by default. In my case, I want to run security updates on my instances. The owner of the document is considered to be Amazon, not a specific user account within AWS. I want to add another user that can connect to my Amazon Elastic Compute Cloud (Amazon EC2) Windows instance with Remote Desktop Protocol (RDP). Oct 17, 2012 · Before you can manage nodes by using Run Command, a tool in AWS Systems Manager, configure an AWS Identity and Access Management (IAM) policy for any user who will run commands. Type: String Required: Yes InstanceIds Apr 23, 2023 · If you are planning to run ssm command from aws CLI outside of aws environment, then use programmatic credentials (i. To send a command to a smaller number of instances, you can use the InstanceIds option instead. The second statement allows the user to start a session on a given instance using the default SSM-SessionManagerRunShell session document. May 28, 2020 · Am trying to automate some commands on the box using AWS System Manager, but system manager logs in as root, which lacks the aforementioned configuration of ec2-user. Run Command, a tool in AWS Systems Manager, reports detailed status information about the different states a command experiences during processing and for each managed node that processed the command. 4 I'm trying to have an IAM user who can only use SSM Run Command with a specific Document. AWS provides two sets of command line tools: the AWS Command Line Interface and the AWS Tools for Windows PowerShell. Then, you can use the parameter in the AWS CLI command. For more information, see Running Commands Using Systems Manager Run Command in the AWS Systems Manager User Guide. I stored the username and password as strings in secrets manager and I use a bit of code to call them back. If you're using a document shared with you by a different AWS account, specify the Amazon Resource Name (ARN) of the document. Then I want to log into different IAM user and access same EC2 except with a different SSM so home dir isn't the same and they don't have access to each others files. Amazon-owned documents include a prefix like AWS-* in the document name. Jan 4, 2023 · Was trying to start a session[terminal] via ssm on an instance in another account. This walkthrough includes an example for each of the pre-defined AWS Systems Manager documents. This article hopes to provide a quick and referenceable cheat sheet on how to do this via ssm:SendCommand or ssm:StartSession. How can I do that? Run the specified commands. 0, the account is created the first time SSM Agent starts or restarts after installation. The following sample walkthrough shows you how to use the AWS Command Line Interface (AWS CLI) to view information about commands and command parameters, how to run commands, and how to view the status of those commands. msc to open the Local Users and Groups console. On agent versions earlier than 2. Checks Elastic Compute Cloud (EC2) allows users to rent virtual computers over the AWS. To preview the required and optional parameters for an AWS Systems Manager (SSM) Command document, in addition to the actions the document runs, you can view the content of the document in the Systems Manager console. On the Member Of tab, do one of the following: The value of aws:SourceArn must be the ARN for automation executions. Systems Manager is a management tool that enables you to gain operational insights and take action on AWS resources safely and at scale. The SSM Agent is the primary component of a feature called Run Command. I want to control access to my instances so that certain users can start a Session Manager, a capability of AWS Systems Manager session. To see the available shells on the instance, run the following command: $ sudo cat /etc Run automations on a schedule, or when a specific AWS system event occurs by using a runbook as the target of an EventBridge event. Mar 7, 2012 · Solution If the Run As different user option is not available while you right click on the SSMS executable or shortcut, you can follow one of the techniques below to use the run as option. Technique 1 – Run As different User Step 1: Press and Hold the Shift Key and Right Click on the SSMS executable or shortcut, you should see the Run as different user option in the context menu. Here’s a comparison of ssm-user, SSM Document, and RunCommand presented in a tabular format: The walkthroughs in this section show you how to run commands with Run Command, a tool in AWS Systems Manager, using either the AWS Command Line Interface (AWS CLI) or AWS Tools for Windows PowerShell. ssm agent need to be installed on the EC2 with the appropriate instance profile attached with needed ssm permissions. Example 5: To run a command that outputs to S3 and CloudWatch Mar 13, 2025 · Learn how to manage and automate your AWS infrastructure with Amazon Systems Manager (SSM) in this comprehensive guide for beginners and experts. Note that if your node is configured with the noexec mount option for the var directory, Run Command is unable to successfuly run commands. ps1 c:\filename"] However script. 612. If I have the following policy attached to the user, that user can indeed only successfully execute AWS-RunShellScript (which is an AWS managed) document on EC2 instances. The awscli command: aws ssm send-command --timeout-seconds 60 --instance-ids i-blahblah --document-name AWS-RunPowerShellScript --parameters commands=["c:\myscript. Any permissions you grant that computer object will be available to the local SYSTEM account. The targets parameter accepts a Key,Value combination based on tags that you specified for your managed nodes. 31. Jan 30, 2024 · How to set up AWS Session Manager Secure and simplified setup for Session Manager: A Guide on Associating different EC2 Operating System Users with distinct IAM users Install SSM Agent: The EC2 instance must have SSM agent installed on it. For […] To run ipconfig from the AWS Systems Manager Run Command: $ aws ssm The application in this article utilizes various of Amazon Web Services. For information about installing and using the Tools for Windows PowerShell, see the AWS Tools for PowerShell User Guide. The (manual) setup for the container looks something like this: Create an EC2 Run a shell script as roo Starting with version 2. Jul 14, 2022 · In this hands-on tutorial, you will learn how to use AWS Systems Manager to remotely run commands on your Amazon EC2 instances. You can specify a maximum of 50 IDs. 0 of AWS Systems Manager SSM Agent, the agent creates a local user account called ssm-user and adds it to /etc/sudoers (Linux and macOS) or to the Administrators group (Windows). Dec 31, 2020 · Select Enable Run As support for Linux instances and set default user to ssm-user. From the command line, run lusrmgr. 50. 37 to run the ssm list-commands command. To do this, I am foll To send a command to a smaller number of instances, you can use the InstanceIds option instead. We add it to the sudo group, the sudoers file, and also allow the user to run sudo commands without a password. To use the AWS CLI to run session commands, the Session Manager plugin must also You can use Run Command from the AWS Management Console, the AWS Command Line Interface (AWS CLI), AWS Tools for Windows PowerShell, or the AWS SDKs. Run Command is offered at no additional cost. The SSM Agent process the run command requests & configure the instance as per command. For more information, see Setting up AWS Systems Manager in the AWS Systems Manager User Guide . This is because SSM Agent looks for credentials in the order prescribed for the default credential provider chain. 39 to run the ssm send-command command. Jan 17, 2025 · Customers are looking for a way to limit the types of commands that can be run on their Amazon Elastic Compute Cloud (Amazon EC2) instances when using AWS Systems Manager Session Manager interactive sessions. You don't need to single or double quote before and after your commands as mentioned in the question. For example, arn:aws:ssm:*:123456789012:automation-execution/*. These documents are publicly available for all to use. If you're using a document shared with you by a different Amazon Web Services account, specify the Amazon Resource Name (ARN) of the document. May 16, 2017 · I want to sync a s3 bucket on ec2 instance and I want to do it using ssm run-command. In that case, I think you can store the domain user password in something like secrets manager, then within run command, get the credentials, then run the command using that credentials. You can use Run Command, a tool in AWS Systems Manager, to run commands on a fleet of managed nodes by using the targets. Use the Windows console to modify Administrator permissions Connect to the managed node and open the PowerShell or Command Prompt window. ) Mind the apostrophes location, they are super important! May 27, 2024 · The SSM agent operates from the instance and communicate outbound to AWS backend. The following is an example. If you don't know the full ARN of the resource or if you're specifying multiple resources, use the aws:SourceArn global context condition key with wildcards (*) for the unknown portions of the ARN. “ ssm:SendCommand ” is a powerful AWS Systems Manager permission that allows users to remotely execute commands on managed EC2 instances You can reference a string type parameter as ssm:parameter-name. (structure) An array of search criteria that targets instances using a Key,Value combination that you specify. ) If you choose, you can instead authenticate sessions using the credentials of an operating system (OS) user account, or a domain user for instances joined to an Active Sep 2, 2021 · Members of this group can read logs in /var/log . For more information about using shared documents, see Using shared SSM documents. Your EC2 instances may end up needing some ssm: permissions, for example, the ones built Feb 6, 2018 · According to New EC2 Run Command news article, AWS CLI should support a new sub-command to execute scripts on remote EC2 instances. Because these are the highest level of system access permissions, any trusted entity that has been granted permission to send commands to SSM Agent has root or I want to send AWS Systems Manager Run Command output to an Amazon Simple Storage Service (Amazon S3) bucket in another AWS account. Open the Users directory, and then open ssm-user. Use invoke-command for running as a different user. I know first I need to get the list of instances ids: aws ec2 describe-instances --filter "Name=tag:G To turn on shell profiles, you must use AWS Systems Manager Agent (SSM Agent) version 3. This section also includes information about how to cancel a command. rhujubts njrzz nqlyz zcvkyas icxvpig kanrs jstrw kddd wjnu ftsar xvuqz yuuto yjvguvl qpiyce jdle