Learn with RedHat : RH253 training material for 100% pass
Updated: Jul 20, 2026
No. of Questions: 100 Questions & Answers with Testing Engine
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RedHat RH253 Exam Overview:
| Certification Vendor: | Red Hat |
| Exam Name: | Red Hat Linux Networking and Security Administration |
| Exam Number: | RH253 |
| Related Certifications: | Red Hat Certified Engineer (RHCE) |
| Available Languages: | English |
| Passing Score: | Approx. 80% |
| Real Exam Qty: | Performance-based tasks |
| Exam Duration: | 330 minutes |
| Certificate Validity Period: | 3 years (current status); becomes non-current after 3 years |
| Exam Price: | Varies by region, approx. $400–$500 USD |
| Exam Format: | Performance-based lab, Hands-on practical tasks |
| Recommended Training: | RH253 Official Course |
| Exam Registration: | Red Hat Training & Certification |
| Exam Way: | Onsite proctored lab exam, performed on live RHEL systems |
| Pre Condition: | RH133 Red Hat Linux System Administration or equivalent experience; TCP/IP networking knowledge recommended |
| Official Syllabus URL: | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/5/html/deployment_guide/ch59 |
RedHat RH253 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Network Services Configuration | - NFS network file system - DNS server configuration - FTP server management - Samba file sharing services - DHCP server setup and administration - Apache HTTP server deployment - Email services (Sendmail/Postfix) |
| Topic 2: Network Security and Firewall | - Security policy development - SELinux basics and configuration - Network access control - Security tools and intrusion detection - Firewall configuration with iptables |
| Topic 3: System Performance and Security | - Kernel security and hardening - Password and account security - Filesystem and file permissions security - System monitoring and performance tuning - Local security fundamentals |
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