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RHCE, or RedHat Certified Engineer, is a RedHat certification validating skills in system management and administration at the system engineer level. To take this exam, one must first hold a valid RHCSA certification. The first RHCE certificates were issued by the company in 1999, and by 2009, there were already around 40,000 of them. The scope of knowledge required for the RHCE certificate includes extended information on topics covered in the RHCSA exam related to networking, kernel settings, building simple RPM packages, the iSCSI protocol, logging and reporting system performance, using shell scripts for task automation, configuring system logs and remote logging, and configuring the system to provide network services such as HTTP/HTTPS, FTP, NFS, SMB, SMTP, SSH, and NTP.
Exam objectives.
Candidates taking the RHCE exam should be able to (in addition to RHCSA topics) independently perform the following tasks, which have been divided into several categories.
- System configuration and management.
- IP routing and creating static routes.
- Using firewalls (iptables) for packet filtering and NAT configuration.
- Using /proc/sys and sysctl to modify and configure the system kernel.
- Using and configuring Kerberos authentication.
- Building a simple RPM package in a single file.
- Configuring the system to work with iSCSI and mounting iSCSI resources.
- Creating and providing system utilization reports (CPU, memory, disk, and network).
- Using shell scripts to automate tasks.
- Configuring the system to save logs on a remote system.
- Configuring the system to accept logging from a remote machine.
- Network services
Network services are an important part of the RHCE exam objectives. Candidates should be familiar with the topics listed below:
- Installing packages required for providing network services.
- Configuring SELinux to support services.
- Configuring services to start at system boot.
- Configuring services for basic operations.
- Configuring security for services.
- HTTP/HTTPS
- Configuring virtual hosts.
- Configuring private directories.
- Installing basic CGI applications.
- Configuring and group-managing content.
-- DNS (Domain Name System)
- Configuring a caching-only name server.
- Configuring a caching name server and DNS forwarding.
-- FTP (File Transfer Protocol)
- Configuring an FTP server for anonymous users to download files.
-- NFS (Network File System)
- Sharing network resources with specific clients.
- Sharing network resources to enable group work.
-- SMB (Server Message Block)
- Sharing network resources with specific clients.
- Sharing network resources to enable group work.
-- SMTP (Simple Mail Transfer Protocol)
- Configuring a mail agent to accept messages from other systems.
- Configuring an agent to relay messages via a smart host.
-- SSH (Secure Shell)
- Configuring key-based authentication.
- Configuring additional options described in the documentation.
-- NTP (Network Time Protocol)
- Synchronizing time using parallel NTP hosts.
Material prepared based on information from the RedHat website:
http://www.redhat.com/training/courses/ex300/examobjective
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