Red Hat Enterprise Linux 10 Security Hardening, Red Hat, 2026

Enhancing security of Red Hat Enterprise Linux 10 systems

Learn the processes and practices for securing Red Hat Enterprise Linux servers and workstations against local and remote intrusion, exploitation, and malicious activity. By using these approaches and tools, you can create a more secure computing environment for the data center, workplace, and home.

🛡 Security Pillars in RHEL 10:

1. FIPS 140-3 Mode
📌 Compliance with federal cryptographic standards
📌 Must be enabled during installation (not after)
📌 Ensures exclusive use of approved algorithms

2. System-Wide Cryptographic Policies
📌 DEFAULT, LEGACY, FUTURE, and FIPS
📌 Centralized control of TLS, SSH, IPsec, and Kerberos
📌 Adaptable to your compatibility needs

3. System Integrity
📌 Keylime: Continuous integrity monitoring with TPM
📌 AIDE: Detection of unauthorized file changes
📌 IMA: Runtime integrity measurement

4. Access Control
📌 Smart card management with polkit
📌 SSH authentication from secure devices
📌 PKCS #11 modules for HSMs

5. Regulatory Compliance
📌 Automated scanning with OpenSCAP
📌 Profiles for HIPAA, PCI-DSS, STIG, CIS
📌 Automatic configuration remediation

6. Advanced Protection
📌 fapolicyd: Application execution control
📌 USBGuard: USB intrusion prevention
📌 Volume encryption with NBDE and Tang

✅ Implement cryptographic policies from the start
✅ Monitor integrity with Keylime in critical infrastructure
✅ Automate compliance with OpenSCAP
✅ Use smart cards for privileged access

#hardening #linux