Many security policies and standards require systems administrators to address specific user authentication concerns, application of updates, system auditing and logging, file system integrity, and more. Red Hat Server Hardening provides strategies for addressing specific policy and configuration concerns. This course can also help you prepare for the Red Hat Certificate of Expertise in Server Hardening exam (EX413).
- Needs technical guidance on how to enhance the security of Red Hat Enterprise Linux systems
- Responsible for implementing security policy requirements on Red Hat Enterprise Linux systems consistently and in a reproducible, scalable way
- Must be able to demonstrate that systems meet security policy requirements
- Maintains continued adherence to security requirements, including management of security-critical operating system/software updates
- RHCE-level skills highly recommended
- Red Hat Certified Engineer (RHCE) certification, Red Hat Certified Systems Administrator (RHCSA) certification, or equivalent experience required
- For candidates who have not earned their RHCSA or RHCE certifications, confirmation of the required knowledge can be obtained by passing the online skills assessment
- Review errata and apply them to Red Hat Enterprise Linux
- Use special permissions and file system access control lists
- Manage users and password-aging policy requirements
- Install and configure Red Hat Identity Management tools
- Understand system auditing
Track security updates
- Understand how Red Hat Enterprise Linux produces updates and how to use yum to perform queries to identify what errata are available.
- Develop a process for applying updates to systems including verifying properties of the update.
- Allocate an advanced file system layout and use file system encryption.
- Adjust file system properties through security related options and file system attributes.
- Work with set user ID (SUID), set group ID (SGID), and sticky (SVTX) permissions and locate files with these permissions enabled.
- Modify default permissions applied to files and directories; work with file access control lists.
- Configure software to monitor the files on your machine for changes.
- Manage pluggable authentication modules (PAMs)Apply changes to PAMs to enforce different types of rules on users.
- Adjust properties for various console services to enable or disable settings based on security.
- Install and configure a Red Hat Identity Management server and client.
- Configure Red Hat Identity Management rules to control both user access to client systems and additional privileges granted to users on those systems.
- Configure remote logging to use transport layer encryption and manage additional logs generated by remote systems.
- Enable and configure system auditing.Control access to network servicesManage firewall rules to limit connectivity to network services.