Red Hat Enterprise Linux 7

Basic Information

• Model: Red Hat Enterprise Linux 7 (codenamed Maipo)
• Version: 7
• Release Date: June 10, 2014
• Minimum Requirements:
  • RAM: 1 GB
  • Processor: 64-bit capable processor
  • Storage: 10 GB
• Supported Architectures: 64-bit AMD, 64-bit Intel, IBM POWER (POWER7+, POWER8, POWER9), IBM Z, 64-bit ARM
• Latest Stable Version: 7.9 (Update 9), released September 29, 2020
• End of Maintenance Support 2 Date: June 30, 2024
• Extended Lifecycle Support (ELS) End Date: May 31, 2029 (for RHEL 7.9, with ELS Add-on)
• End of Life Date: Not yet reached; transitions to Extended Life Phase after End of Maintenance. ELS provides limited support until May 31, 2029
• Auto-update Expiration Date: Updates for critical security and urgent bug fixes cease after End of Maintenance (June 30, 2024) unless an Extended Lifecycle Support (ELS) Add-on is purchased
• License Type: Commercial, subscription-based
• Deployment Model: On-premise, virtualized environments, cloud platforms

Technical Requirements

Red Hat Enterprise Linux 7 requires a 64-bit hardware architecture for installation. It supports a range of processors and offers flexible resource allocation for various workloads.

• RAM: Minimum 1 GB, 2 GB recommended for typical server workloads.
• Processor: Any 64-bit capable processor from AMD, Intel, IBM POWER (POWER7+, POWER8, POWER9), IBM Z, or ARM architectures.
• Storage: Minimum 10 GB disk space, 20 GB recommended for a standard installation with additional software.
• Display: Basic VGA for console access; higher resolution display and graphics card for graphical desktop environments.
• Ports: Standard network interface (Ethernet), USB ports for peripherals, and other standard server I/O ports are supported.
• Operating System: Red Hat Enterprise Linux 7 functions as the base operating system. It can host 32-bit operating systems as virtual machines.

Analysis of Technical Requirements: RHEL 7's technical requirements are modest for its base functionality, allowing deployment on a wide array of enterprise hardware, including older systems. The 64-bit architecture requirement ensures modern processing capabilities, while flexible RAM and storage recommendations accommodate diverse use cases from minimal servers to full-featured workstations and virtualized environments.

Support & Compatibility

• Latest Version: Red Hat Enterprise Linux 7.9
• OS Support: Runs natively on 64-bit AMD, Intel, IBM POWER (POWER7+, POWER8, POWER9), IBM Z, and 64-bit ARM architectures. It supports running 32-bit operating systems as virtualized guests.
• End of Maintenance Support 2 Date: June 30, 2024
• Extended Lifecycle Support (ELS): Available as an add-on until May 31, 2029, for the last minor release (7.9), providing critical-impact security fixes and urgent bug fixes
• Localization: Comprehensive localization support for various languages and regional settings.
• Available Drivers: Extensive hardware support is provided through the Linux kernel and Red Hat's driver ecosystem, ensuring compatibility with a broad range of enterprise-grade hardware.

Analysis of Overall Support & Compatibility Status: Red Hat Enterprise Linux 7 has transitioned out of its standard maintenance phases as of June 30, 2024. While it no longer receives regular updates for new features or hardware enablement, Extended Lifecycle Support (ELS) offers continued critical security and urgent bug fixes until May 31, 2029. This allows organizations additional time for migration planning. Its broad architectural support and robust driver availability ensure compatibility with diverse enterprise infrastructures, although newer hardware might benefit more from later RHEL versions.

Security Status

• Security Features: Includes Security-Enhanced Linux (SELinux) for mandatory access control, Iptables for host-based firewalling, comprehensive logging and auditing capabilities, and boot loader password protection. It emphasizes software minimization to reduce attack surfaces.
• Known Vulnerabilities: Addressed through security advisories (RHSAs) during its support phases. Systems without active ELS after June 30, 2024, are at increased risk from unpatched vulnerabilities.
• Blacklist Status: Not applicable. As an operating system, it does not have a blacklist status.
• Certifications: Achieved Common Criteria Certification at Evaluation Assurance Level (EAL) 4+ for RHEL 7.1. Various cryptographic modules are FIPS 140-2 certified.
• Encryption Support: Supports Linux Unified Key Setup (LUKS) for full disk and partition encryption. Network-Bound Disk Encryption (NBDE) is available from RHEL 7.4, allowing automated decryption of root volumes in secure network environments.
• Authentication Methods: Supports local system authentication, as well as integration with external identity sources like LDAP, NIS, Winbind, and Kerberos. Pluggable Authentication Modules (PAM) enable flexible authentication policies, including smart card-based authentication. Strong password policies are configurable.
• General Recommendations: Red Hat recommends minimizing installed software, configuring security tools like Iptables and SELinux, encrypting transmitted data, setting boot loader passwords, implementing regular backups, and enforcing strong access controls.

Analysis on Overall Security Rating: Red Hat Enterprise Linux 7 maintains a strong security posture, evidenced by its Common Criteria and FIPS certifications, robust built-in security features like SELinux and comprehensive encryption options. However, its transition out of standard maintenance means that ongoing security updates for critical vulnerabilities are only available through the Extended Lifecycle Support (ELS) add-on. Organizations not utilizing ELS face significant security risks, necessitating an upgrade to a newer, fully supported RHEL version.

Performance & Benchmarks

• Benchmark Scores: RHEL 7.6 achieved world record performance results with Intel Xeon Scalable processors in various benchmarks.
• Real-world Performance Metrics: RHEL 7 demonstrates solid throughput for typical workloads. When compared to RHEL 8, RHEL 7 and RHEL 8 show similar throughput for fewer than 500 simulated users. However, RHEL 8 can achieve up to 35% greater throughput at saturation for certain workloads due to improvements in syscall overhead and XFS journaling.
• Power Consumption: Red Hat Enterprise Linux 7 incorporates power management features, including a tickless kernel, to optimize energy use and reduce heat output. Tools like PowerTOP assist in identifying and tuning components for lower power consumption.
• Carbon Footprint: Power management optimizations contribute to a reduced energy footprint, aligning with green IT initiatives by lowering electricity consumption and associated carbon dioxide output.
• Comparison with Similar Assets: While RHEL 7 offers robust performance, RHEL 8 generally provides improvements across various metrics, including CPU, memory usage (up to 20% less), disk I/O (up to 15% increased, 40% for XFS throughput), and network performance (20-30% improved), especially under higher load conditions.

Analysis of Overall Performance Status: Red Hat Enterprise Linux 7 delivers reliable and scalable performance suitable for demanding enterprise workloads. Its optimizations for power management also contribute to efficient operation. While newer versions like RHEL 8 offer incremental performance gains, particularly in areas like I/O and networking under heavy load, RHEL 7 remains a capable platform for many existing deployments.

User Reviews & Feedback

User reviews and feedback for Red Hat Enterprise Linux 7 generally highlight its reputation as a highly stable, secure, and robust operating system for enterprise environments. Strengths frequently cited include its long-term support (especially with ELS), comprehensive documentation, and strong ecosystem of compatible software and hardware. It is often praised for its reliability in mission-critical applications and its consistent performance. Weaknesses typically emerge in comparison to newer distributions or RHEL versions, where its older kernel and package versions may not offer the latest features, performance optimizations, or hardware support. The necessity to purchase ELS for continued security updates after the End of Maintenance date is also a point of consideration for users. Recommended use cases span a wide range, including traditional server roles, database hosting, virtualization hosts, and as a stable platform for custom applications where long-term stability and certified security are paramount.

Summary

Red Hat Enterprise Linux 7 stands as a foundational enterprise operating system, recognized for its exceptional stability, robust security features, and extensive hardware support across diverse architectures. Released in 2014, it introduced significant advancements such as systemd and XFS as the default filesystem, solidifying its role in data centers and cloud environments. Its security posture is reinforced by certifications like Common Criteria EAL 4+ and FIPS 140-2, alongside integrated tools like SELinux and comprehensive encryption options including LUKS and NBDE. Performance is reliable and scalable, though newer RHEL versions offer incremental gains in specific areas like I/O and networking under heavy loads. The primary challenge for RHEL 7 users is its lifecycle status; the End of Maintenance Support 2 phase concluded on June 30, 2024. While Extended Lifecycle Support (ELS) is available until May 31, 2029, providing critical security and urgent bug fixes, organizations must plan for migration to newer RHEL versions (8 or 9) to benefit from full support, modern features, and continued innovation. RHEL 7 remains a viable option for specific legacy applications or environments with ELS, but proactive upgrade planning is essential for long-term security, performance, and compatibility.

The information provided is based on publicly available data and may vary depending on specific device configurations. For up-to-date information, please consult official manufacturer resources.