RedHat Linux Networking and Security Administration - RH253
- Exam Code: RH253
- Exam Name: RedHat Linux Networking and Security Administration
- Updated: Jul 21, 2026
- Q & A: 100 Questions and Answers
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| Section | Objectives |
|---|---|
| Network Services Configuration | - Web services (Apache HTTP Server) - DHCP server setup and client configuration - DNS configuration and BIND fundamentals |
| Mail and Network Communication Services | - Basic SMTP and IMAP/POP concepts - Postfix mail server configuration |
| System Troubleshooting and Maintenance | - Log analysis and system monitoring - Network diagnostics and performance troubleshooting |
| TCP/IP Networking Fundamentals | - Network configuration and troubleshooting tools (ifconfig, ip, netstat) - IP addressing, subnetting, and routing basics |
| File Sharing and Remote Access | - SSH secure remote administration - Samba file sharing services - NFS configuration and administration |
| System Security Administration | - Firewall configuration (iptables) - User authentication and PAM basics - Basic SELinux concepts (version dependent) |
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