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Foglight Agent Manager 5.8.5.5 - Guide

Configuring the embedded Agent Manager Installing external Agent Managers
Understanding how the Agent Manager communicates with the Management Server Deploying the Agent Manager cartridge Downloading the Agent Manager installer Installing the Agent Manager Starting or stopping the Agent Manager process Frequently asked questions
Configuring the Agent Manager Advanced system configuration and troubleshooting
Configuring Windows Management Instrumentation (WMI) Configuring Windows Remote Management (WinRM) UNIX- and Linux-specific configuration
Monitoring the Agent Manager performance Deploying the Agent Manager to large-scale environments

Configuring Windows Management Instrumentation (WMI)

To remotely monitor a Windows® machine, some Foglight™ agents require access to the WMI services, and specifically to the WMIConnectionService. This section outlines potential issues that may be encountered by agents attempting to access WMI, and provides solutions or workarounds.
In order to access WMI, the user that the monitoring agent connects as must have sufficient credentials. Any user included in the Administrator group on the monitored machine already has the required access levels. For more information, see Minimum requirements for Windows Management Instrumentation.
There are several OS and environment-specific issues that may arise when using a Foglight agent to monitor a Windows machine remotely. This section provides solutions for the following issues:
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Windows Firewall interference
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Minimum requirements for Windows Management Instrumentation
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WMI access violation and OS connectivity verification failure
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WMI and Quota Violation error
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Known WMI issues in Windows Server 2008
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Modifying registry key ownership on Windows Server 2008 R2
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Configuring registry settings for Windows Server 2008 R2 and Windows 7
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Resolving Access Denied errors when connecting to Windows XP Professional
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OS collection fails with a Local_Limit_Exceeded error
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Access to DCOM objects and registry is denied
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Configuring registry settings for WinShell access through DCOM
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Enabling agents to connect from UNIX machines
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Enabling agents to connect locally on Windows
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Releasing a locked MySQL process

Windows Firewall interference

Since the agent connects remotely (that is, from an external source) the Windows® Firewall can interfere with operations. In such cases, it is recommended that you initially try disabling the firewall to determine if that allows the agent to connect. When the agent can connect with the firewall disabled, re-enable it and open the following ports:
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TCP Port 135 (DCE/RPC Locator service, WindowsShellService, WMIConnectionService)
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TCP Port 139 (NetBIOS Session Service)
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TCP Port 445 (Windows shares)

Minimum requirements for Windows Management Instrumentation

In order for the agent to have access to query WMI to collect OS and database metrics, the agent must have permission to access both DCOM and WMI. By default, any user in the Local Administrators group on the monitored host has the required permissions. Therefore, the best practice is to use a Local Administrator account on the monitored host as the agent OS user.

Promoting remote users to administrators on local machines through the Domain Controller

The recommended way of making users the administrators of their local machines is through Active Directory on the domain controller. Using the Domain Controller, you can:
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Set up local administrators for specific machines in the domain
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Promote local users to administrators for specific machines in the domain
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Make domain users administrators of all machines in the domain by adding them to the Domain Admins group
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Make domain users administrators of specific machines in the domain by adding them to the Domain Admins group
To promote a user to an administrator on a local machine using the Domain Controller:
1
Choose Control Panel > Administrative Tools > Active Directory Users and Computers.
2
In the Active Directory Users and Computers window that appears, in the left pane, under the domain node, click Computers.
3
In the right pane, right-click the machine whose local user you want to promote to an administrator, and choose Manage.
4
In the Computer Management window that appears, choose System Tools > Local Users and Groups.
5
You can now do any of the following:
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Using the Users node in the right pane, make an existing or a new user an Administrator.
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Using the Groups node, add an existing user to the Administrators group.
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