100% RedHat RH253 Guaranteed Success With Testing Engine

Exam Code: RH253

Exam Name: RedHat Linux Networking and Security Administration

Updated: Jul 17, 2026

Number: 100 Q&As 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
Available Languages:	English
Exam Format:	Instructor-led training course with hands-on labs
Related Certifications:	Red Hat Certified Engineer (RHCE)
Recommended Training:	Red Hat System Administration II (RH134) Red Hat System Administration I (RH124)
Exam Registration:	Red Hat Training Catalog
Exam Way:	Instructor-led training course (no standalone certification exam for RH253; knowledge supports RHCE track)
Pre Condition:	Basic Linux administration knowledge recommended (e.g., RH033/RH124 equivalent skills)
Official Syllabus URL:	https://www.redhat.com

RedHat RH253 Exam Syllabus Topics:

Section	Objectives
TCP/IP Networking Fundamentals	- Network configuration and troubleshooting tools (ifconfig, ip, netstat) - IP addressing, subnetting, and routing basics
Mail and Network Communication Services	- Basic SMTP and IMAP/POP concepts - Postfix mail server configuration
System Security Administration	- User authentication and PAM basics - Firewall configuration (iptables) - Basic SELinux concepts (version dependent)
System Troubleshooting and Maintenance	- Log analysis and system monitoring - Network diagnostics and performance troubleshooting
File Sharing and Remote Access	- Samba file sharing services - NFS configuration and administration - SSH secure remote administration
Network Services Configuration	- Web services (Apache HTTP Server) - DNS configuration and BIND fundamentals - DHCP server setup and client configuration

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100% RedHat RH253 Guaranteed Success With Testing Engine