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Message Level Encryption (MLE) allows your Clients to encrypt upstream data using a combination of an RSA public/private key-pair and an AES session key1.

When MLE is enabled, the BigFix Root server (or a decrypting Relay) needs to use the corresponding RSA private key to decrypt the AES session key, which is then used to decrypt the Client report1.

This decryption process consumes CPU resources on the BigFix Root server, and the amount of CPU usage depends on the number of encrypted reports received and the key length used1.

Therefore, the BigFix Root server requires additional CPU resources appropriate to the number of managed endpoints to process the encrypted reports1.

The other options are incorrect because:

A is not relevant to the question, as it assumes that there are top-level Relays in the deployment. The question states that there are no top-level Relays, so all Relays are downstream from the BigFix Root server. Moreover, the RAM requirement for Relays is not affected by MLE, as Relays do not perform any encryption or decryption by default1.

C is not necessary, as adding an additional NIC to the BigFix Root server does not affect the CPU load caused by the encrypted reports. The network bandwidth requirement for MLE is not significantly higher than for clear-text reports, as the encryption adds only a small overhead to the report size1.

D is not a valid setting for the BigFix Root server, as it only applies to Relays that are configured to decrypt and repackage encrypted reports before relaying them to theBigFix Root server2. This setting controls the maximum number of concurrent decryption threads on a Relay, and does not affect the BigFix Root server2. References:

1: Message Level Encryption (MLE) Overview

2: [Enabling encryption on Relays]

The WebUI is a web-based interface that provides access to the flexibility and power of BigFix.

A Master Operator is a user role that has full permissions to manage all aspects of the BigFix environment, including creating, modifying, and deleting content, actions, and users.

An action is a deployment of content, such as Fixlets, tasks, or baselines, to one or more endpoints. An action can have various statuses, such as open, completed, stopped, or expired.

To review all actions taken in their BigFix environment, a Master Operator can log into the WebUI and navigate to the Deployments page, which provides a list of all actions, along with their details, such as name, source, target, status, start time, and end time.

The Deployments page also allows the Master Operator to filter, sort, search, and export the list of actions, as well as view the action details, results, and logs for each action.

The other pages in the WebUI do not provide a comprehensive list of all actions. The Activities page shows the recent actions taken by the current user, the Fixlets and Tasks page shows the available content from the BigFix sites, and the Reports page shows the predefined and custom reports for the BigFix environment. References:

WebUI User’s Guide

WebUI Administration Guide

BigFix WebUI

To create a custom Fixlet, you need to use the Action Script language, which is a set of commands that run on relevant clients to fix the problem identified by the Applicability Relevance clause1.

The Action Script language supports various types of scripts that can be executed on different operating systems, such as Windows, Linux, Mac OS, etc2.

Some of the valid Action Script types are:

waithidden or runhidden, which execute a command or script in the background without showing a window2.

wait or run, which execute a command or script in the foreground and show a window2.

override, which modifies the behavior of a command or script, such as changing the working directory, the user context, the completion timeout, etc2.

Among the options given in the question, Powershell and csh are valid Action Script types, as they are supported by the waithidden, runhidden, wait, and run commands2.

Powershell is a scripting language for Windows systems, which can be executed by using the powershell.exe executable2.

csh is a shell script for Unix-like systems, which can be executed by using the csh command2.

AppleScript, Python, and Javascript are not valid Action Script types, as they are not supported by the Action Script language2.

AppleScript is a scripting language for Mac OS systems, which can be executed by using the osascript command2.

Python is a general-purpose programming language, which can be executed by using the python command2.

Javascript is a scripting language for web browsers, which can be executed by using the cscript.exe or wscript.exe commands on Windows systems2.

References:

The Action Script Language

Action Script Guide

To define password complexity criteria for local Web Reports users, you need to edit the webreports.cfg file located in the C:\Program Files (x86)\BigFix Enterprise\BES Server\BESReportsServer\wwwroot\cgi-bin directory.1

In the webreports.cfg file, you can set the following parameters to customize the password complexity requirements:2

passwordComplexity: Set to a regular expression that defines the password complexity requirement. For example, (?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{8,} means that thepassword must contain at least one digit, one lowercase letter, one uppercase letter, and be at least 8 characters long.

passwordComplexityDescription: Set to a human-readable string describing the password complexity requirement. This string will be shown to the user when a password choice fails the complexity requirements set using the passwordComplexity option. An example password complexity description is “Passwords must have at least 6 characters.”

passwordMinLength: Set to the minimum length of acceptable passwords. The default value is 6.

passwordMaxLength: Set to the maximum length of acceptable passwords. The default value is 256.

After editing the webreports.cfg file, you need to restart the Web Reports service for the changes to take effect.1

References:

1: https://help.hcltechsw.com/bigfix/9.5/platform/Platform/Web_Reports/c_web_reports_config_file.html

2: https://bigfix-wiki.hcltechsw.com/wikis/home?lang=en-us#!/wiki/BigFix%20Wiki/page/Console%20User%20Password%20Policies

To create a Custom Site, you need to select Tools > Create Custom Site from the BigFix Console and enter a name for your site. You can also provide a description and a domain for your site.

To assign permission levels to operators, you need to click the Operator Permissions tab from the site dialog and select the operators from the list. You can also grant read permission globally to all operators by clicking the corresponding button.

The permission levels that can be assigned to operators are:

Reader: This level allows the operator to view the content of the site, but not to modify it or create new content. Readers can also subscribe computers to the site, but not change the subscription criteria.

Writer: This level allows the operator to view and modify the content of the site, as well as create new content. Writers can also subscribe computers to the site and change the subscription criteria.

Owner: This level allows the operator to view, modify, and create content, as well as manage the site settings, such as the name, description, domain, and operator permissions. Owners can also subscribe computers to the site and change the subscription criteria.

The permission levels that cannot be assigned to operators are:

User: This level is not applicable to Custom Sites, as it is only used for External Sites to indicate that the operator has accepted the license agreement for the site.

Administrator: This level is not applicable to Custom Sites, as it is only used for the Master Action Site to indicate that the operator has full control over the site and can perform any action on any computer.

Guest: This level is not applicable to Custom Sites, as it is only used for the BES Support Site to indicate that the operator has read-only access to the site and cannot subscribe computers to the site. References:

Creating Custom Sites

User Permissions and Guidelines

Selecting Sites

Baselines are collections of Fixlet messages and Tasks that can be deployed to a group of endpoints with a single command.

Baseline components are pointers to their corresponding source Fixlets or Tasks, which means that they do not contain the actual content, but only reference the original source.

Baseline components can get out of synchronization with their source Fixlets or Tasks, which means that the source content may change or become obsolete, while the Baseline component remains unchanged. This can cause issues such as incorrect relevance, missing downloads, or failed actions.

To avoid these issues, Baseline components should be synchronized with their source Fixlets or Tasks regularly, either manually or automatically. Synchronization updates the Baseline components with the latest content from the source Fixlets or Tasks, and also removes any components that are no longer available or relevant.

Baselines can be created by any user who has the permission to create content in a custom site. This includes Master Operators, who have full permissions to manage all aspects of the BigFix environment, as well as Non-Master Operators, who have limited permissions to manage specific sites or domains.

Baselines can include more than 100 components, but this is not recommended for performance and usability reasons. The optimal number of components for a Baseline depends on various factors, such as the size of the deployment, the complexity of the content, the frequency of the updates, and the network bandwidth. Generally, it is advisable to keep the Baseline components as few and simple as possible, and to group them logically by function or category.

Baselines can include other Baselines as components, which allows for creating nested or hierarchical Baselines. This can be useful for organizing and managing complex or large-scale deployments, such as patching multiple operating systems or applications. However, nesting Baselines also adds more layers of complexity and potentialsynchronization issues, so it should be done with caution and proper planning. References:

Introducing Baselines

Creating or Customizing Baselines

Baselines

The WebUI cache is used to improve the response time of the WebUI by storing and refreshing some data that requires complex calculations, such as the number of applicable devices or patches1.

The cache refresh interval, also known as the cache Time To Live (TTL) value, determines how often the cached data is invalidated and updated1. The default value is 600 seconds (10 minutes)1.

To change the cache refresh interval, you can use the client setting _WebUIAppEnv_CACHE_TTL and enter the desired interval in seconds1. The minimum value is 180 seconds (3 minutes)1.

Increasing the cache refresh interval can reduce the impact on system resources, especially for large deployments and intensive patching activities1. However, it can also affect the freshness of the cached data1.

Another setting that affects the WebUI caching is _WebUIAppEnv_CACHE_INTERVAL, which determines how often the WebUI checks for new data from the BigFix server1. The default value is 60 seconds1.

Decreasing the cache interval can improve the responsiveness of the WebUI, but it can also increase the load on the BigFix server1. Therefore, you should balance the cache interval and the cache TTL values according to your needs and environment1.

The other settings, _WebUIAppEnv_SP_QUEUE_CONCURRENT, _WebUIAppEnv_DATA_REFRESH_SECONDS, and _WebUIAppEnv_SITE_CACHE_SIZE, are not related to the WebUI cache refresh interval12.

_WebUIAppEnv_SP_QUEUE_CONCURRENT limits the number of stored procedures that run simultaneously per app in the background that update cache values1. The default value is 51.

_WebUIAppEnv_DATA_REFRESH_SECONDS determines how often the WebUI polls the BigFix server for new data2. The default value is 15 seconds2.

_WebUIAppEnv_SITE_CACHE_SIZE specifies the maximum size of the site cache in megabytes2. The default value is 100 MB2.

References:

Caching - HCL Product Documentation

Server settings definitions - HCL Product Documentation

To reconfigure a proxy server on a Windows BigFix Root server, the administrator needs to run the command BESAdmin.exe /setproxy from the BES Server folder with the appropriate parameters1.

The command BESAdmin.exe /setproxy allows the administrator to edit the proxy configuration settings after installation by specifying the proxy host, port, user, password, exception list, secure tunneling, authentication methods, and downstream notification1.

The command BESAdmin.exe /setproxy can also be used to delete the existing proxy settings by using the /delete parameter1.

The command BESAdmin.exe /setproxy is only available on Windows systems. On Linux systems, the equivalent command is BESAdmin.sh -setproxy2. References:

Setting a proxy connection on the server - HCL Product Documentation

Configuring the proxy - HCL Product Documentation