Which of the following is not a best practice for group policy and processes?
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Operating system (OS) hardening, a type of system hardening, is the process of implementing security measures and patching for operating systems, such as Windows, Linux, or Apple OS X, with the objective of protecting sensitive computing systems. Hardening an operating system typically includes: Show
10 Operating System Hardening Best PracticesAlthough each operating system has its own unique characteristics, there are several hardening practices common to all operating systems. Here are ten best practices that can help you enhance security for your operating systems. OS Updates
Secure Configuration3. Clean programs—delete unnecessary and unused programs. Any program installed on your device should be evaluated regularly, as it is a potential entry point for malicious attackers. If software has not been approved or reviewed by the company, it should not be allowed. This technique can help you find and fix security holes and minimize risk. 4. Access control—use features that restrict access to files, networks, and other resources. Access control management features for users and groups are provided by all major operating systems, including Windows, Linux, and OS X. The default settings are usually less strict than needed, so you should configure access to apply the principle of least privilege, and provide access only to those who really need it, when they need it. 5. Group policies—assign users to groups, and define strict privileges for each group, to limit the damage that can be done by careless or malicious users. Continuously update the user policy, and communicate it to end users, to ensure they understand and comply with access privileges. 6. Security templates—use templates to manage and enforce security configurations in a centralized manner. Templates can be used to manage group policies and ensure consistency across the organization. Additional Security Measures7. Firewall configuration—not all operating systems have a firewall configured by default, and if a firewall is running—the firewall rules may not be strict enough. To ensure the firewall is running as needed, you should review and modify your firewall configuration. Ideally, you should set it to allow only traffic from known, approved IP addresses and ports. Unnecessary open ports represent a security risk. 8. Hardening frameworks—use frameworks like AppArmor and SELinux to add improved access control and protect against attacks like buffer overflow and code injection. These frameworks can automatically apply a large number of effective security best practices. 9. Endpoint protection—Windows comes with an advanced endpoint protection solution called Windows Defender. Beyond this solution, there is a selection of mature endpoint protection platforms (EPP) that provide several layers of protection for operating systems – including malware protection, email and social engineering protection, detection of malicious processes, and automated isolation of an OS in case of infection. 10. Data and workload isolation—ensure that sensitive databases or applications run in their own virtual machines or containers, to isolate them from other workloads and reduce the attack surface. Alternatively, you can isolate applications by restricting network access between different workloads. In this way, if attackers take control of one workload, they cannot get access to another. OS hardening can help you reduce the risk of a successful cyber attack. However, to be truly effective, your OS hardening strategy should be implemented alongside a data backup process. This ensures that you have copies of your data and operational systems, and can use them to restore operations if failure occurs. Beyond the Basics: Center for Internet Security (CIS) Benchmarks for OS SecurityThe Center of Internet Security (CIS) is a non-profit organization whose mission is to “identify, develop, validate, promote, and sustain best practice solutions for cyberdefense.” It is a collaborative effort by security and computing experts from governments, universities, and the private sector. The center develops security benchmarks and best practices with broad applicability, using a consensus model. A CIS benchmark serves as a configuration baseline and also as a best practices for securely configurating systems. A benchmark consists of multiple recommendations, each consisting of one or more controls that can be implemented by organizations to improve security for a certain computing system. The recommendations and controls are mapped to compliance standards including ISO 27000, PCI DSS, HIPAA, NIST CSF, and NIST SP 800-53. For operating systems, CIS provides a series of benchmarks that cover secure configuration, with a dedicated benchmark for all major versions of all popular operating systems – including Windows, Windows Server, OS X, and all common Linux distributions. CIS also offers pre-configured and hardened OS images, which you can access via major cloud providers. Hardened images are pre-configured with security best practices, and greatly limit security vulnerabilities that may lead to network attacks. The following are CIS benchmarks and hardened images for common operating systems: Microsoft Windows Service
Ubuntu Linux
Red Hat Enterprise Linux (RHEL)
Apple OS X (MacOS)
To access the CIS benchmarks and hardened OS images:
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OS Hardening with HysolateHysolate is a full OS isolation solution for Windows 10, splitting your endpoint into a more secure corporate zone and a less secure zone for daily tasks. This means that one OS can be reserved for corporate access, with strict networking and security policies, and the other can be a more open zone for accessing untrusted websites and applications. Admins can harden the Workspace OS by choosing which applications can be used, and they can remotely deploy applications, as well as deploy patches and security updates from the cloud. Policies can be set for transferring between Workspace and the host OS, including copy/paste, keylogging, screenshotting etc. Unlike traditional browser isolation solutions, Hysolate isolates your whole OS, including websites, files, documents, applications and even peripherals like USBs and printers. For users, the Hysolate Workspace mimics their native Windows experience, and with minimal lag and latency issues, and users can easily switch between the different operating systems with a press of a button. Which of the following is true regarding group policy object GPO linking?Which of the following is TRUE regarding Group Policy Object (GPO) linking? You can link GPOs to specific users to customize settings for groups of users or even individual users.
What is the purpose of a group policy object GPO quizlet?What is the purpose of a Group Policy object (GPO)? It allows administrators to apply a collection of configuration settings to objects within an Active Directory domain.
What is the smallest Active Directory container or object with which a GPO can be linked?An organizational unit (OU) is a container within a Microsoft Active Directory domain which can hold users, groups and computers. It is the smallest unit to which an administrator can assign Group Policy settings or account permissions.
What defines which objects are affected by settings in a GPO?What defines which objects are affected by settings in a GPO? Set-GPPermission. Which PowerShell cmdlet below can be used to set permissions for a security principal to a GPO or to all GPOs? Computer Configuration\Policies\Administrative Templates\System\Group Policy.
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