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Did you know that by integrating your Control-M/Agent with sudo you can enhance your auditing capabilities, and add more flexibility to your jobs’ user authentication? Interested in seeing Control-M/Agent run jobs as a root user? Want to ensure your Control-M administrators learn how to take advantage of, and understand the different Control-M/Agent 9 modes in your environment?

 

 

On Wednesday, May 25th, Ted Leavitt demonstrated, step-by-step, how you can successfully configure Control-M/Agent 9 to run in three different modes (root, non-root, and sudo). During this Connect with Control-M webinar, Ted:

 

 

  •     Provided an overview of the different modes in Control-M/Agent 9, and their considerations

 

 

  •     Explained the new functionality in Control-M/Agent fix pack 100

 

 

  •     Demonstrated jobs running in the different Control-M/Agent modes (non-root, root, and sudo)

 

 

  •     Provided basic troubleshooting

 

 

Here is the Q&A for this webinar (Connect With Control-M: Control-M/Agent 9 root, non-root, and sudo)

 

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Q: Is there a way to sniff the sudo to get the password?  An example would be someone trying to hack in.

A: sudo does not rely on using passwords, at no time does it have the users password.

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Q: Does Control-M/Agent work with PowerBroker?

A: Please contact BMC Support and open an RFE is this is important to your business.

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Q: Can we use sudo with passwords?

A: You can see in the sudo execution that the sudo is being executed with the -n flag (non-interactive).  The sudo must be setup for NOPASSWD to work with the Control-M/Agent.

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Q: Is sudo the same as running as root mode?

A: The Agent will be running as a user other than root (the Control-M/Agent owner) when running in sudo mode.

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Q: Can the Agent itself run as a different user?

A: The Agent is typically run as the Agent owner.  Settting it up to run as a third user is somewhat involved and requires the verification of permissions.  We generally do not recommend this.

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Q: Does the Agent have to be running as root to use the sudo?

A: The Agent will be running as a user other than root (the Control-M/Agent owner) when running in sudo mode.

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Q: In Sudo mode, I can run jobs as any users without giving the password for that user? And only put those users in /etc/sudoers?

A: Correct, those run as users used on Agents with sudo do not need account credentials (passwords) entered via the CCM (or ctmsetown utility).  When using sudo mode, the security is managed through sudo and the /etc/sudoers file.

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Q: Does shagent and/or ag_diag_comm indicate sudo mode?

A: Currently, the ag_diag_comm does not display the Agent mode.  This is currently being considered to be included in the diagnostic report.  The shagent only reports the PIDs and process owners.

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Q: Is it necessary to recycle the Agent when changing the modes?

A: The set_agent_mode script will itself restart the Agent as needed as it does change the Agent's configuration.

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Q: Are there any issue concerning agent security operation mode that will help the agent use an external validation in Unix (a system that uses Windows AD).

A: Sudo will leverage the security setup on the operating system.  If you have authentication setup to use LDAP or active directory, this will work fine.  The only thing you have to do is make sure sudo works from the command prompt as the Control-M/Agent owner and does not prompt for a password.

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Q: Do users in "sudo-mode" need to be added to "Run-as user authentication" in Control-M?

A: No, sudo-mode uses the sudo security (/etc/sudoers).

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Q: What impact would changing the Agent execution mode have on my jobs?

A: As long as the run as users have the ability to submit the jobs, there should be no impact.

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Q: How can I configure sudo to limit runas users to members of a specific group?

A: Details on configuring sudo should be addressed by your systems or security administrator.  You can get some info from the sudo man page.

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Q: If the runas user's password changes and I'm in sudo mode, do I have to update anything in Control-M?

A: No changes are needed in the Control-M.

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Q: Is PAM needed with sudo?

A: This is a question best answered by your system administrator, as sudo is a system utility relying on the system's infrastructure.

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Q: What mode would BMC recommend?

A: We provide each of these modes for additional flexibility.  The sudo mode puts security back in the hands of your organizations security team.

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Q: If Run As ID is agent ID, will it use sudo to invoke job command?

A: No, no sudo is issued.

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Q: Can changing the execution mode also impact on number of jobs capacity on an agent?

A: There should be no impact to the M/Agent changing execution modes.

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Q: Do we have impact on resource capacity using different modes?

A: There would be as much as doing a sudo vs a su (or su_bmc).  There should be no to negligible impact on resources.

 

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Q: we use SAP module accounts; with Control-M agent in root mode; can we use SAP accounts with non-root and sudo mode of agents?

A: CM's do not use this functionality currently, although there is consideration for leveraging sudo with Application Integrator.

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