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Prerequisite skills for
RHCT and RHCE (check out redhat.com for
recent updates)
Candidates should possess the following skills, as they may be
necessary in order to fulfill requirements of the RHCT and RHCE exams:
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- use standard command line
tools (e.g., ls, cp, mv, rm, tail, cat, etc.) to create, remove, view,
and investigate files and directories
- use grep, sed, and awk to
process text streams and files
- use a terminal-based text
editor, such as vi/vim, to modify text files
- use input/output
redirection
- understand basic
principles of TCP/IP networking, including IP addresses, netmasks, and
gateways
- use su to switch user
accounts
- use passwd to set passwords
- use tar, gzip, and bzip2v
- configure
an email client on Red Hat Enterprise Linux
- use mozilla and/or links
to access HTTP/HTTPS URLs
- use lftp to access FTP URLs
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RHCT skills
Troubleshooting and System
Maintenance
RHCTs should be able to:
- boot systems into
different run levels for troubleshooting and system maintenance
- diagnose and correct
misconfigured networking
- diagnose and correct
hostname resolution problems
- configure the X Window
System and a desktop environment
- add new partitions,
filesystems, and swap to existing systems
- use standard command-line
tools to analyze problems and configure system
Installation and
Configuration
RHCTs must be able to:
- perform network OS
installation
- implement a custom
partitioning scheme
- configure printing
- configure the scheduling
of tasks using cron and at
- attach system to a network
directory service, such as NIS or LDAP
- configure autofs
- add and manage users,
groups, and quotas
- configure filesystem
permissions for collaboration
- install and update RPMs
- properly update the kernel
RPM
- modify the system
bootloader
- implement software RAID at
install-time and run-time
- use /proc/sys and sysctl
to modify and set kernel run-time parameters
Troubleshooting and System
Maintenance
RHCEs must demonstrate the
RHCT skills listed above, and should be able to:
- use the rescue environment
provided by first installation CD
- diagnose and correct
bootloader failures arising from bootloader, module, and filesystem
errors
- diagnose and correct
problems with network services (see Installation and Configuration
below for a list of these services)
- add, remove, and resize
logical volumes
Installation and
Configuration
RHCEs must demonstrate the
RHCT-level skills listed above, and they must be capable of configuring
the following network services:
- HTTP/HTTPS
- SMB
- NFS
- FTP
- Web proxy
- SMTP
- IMAP, IMAPS, and POP3
- SSH
- DNS
For each of these
services, RHCEs must be able to:
- install the packages
needed to provide the service
- configure the service to
start when the system is booted
- configure the service for
basic operation
- Configure host-based and
user-based security for the service
RHCEs must also be able to:
- configure hands-free
installation using Kickstart
- implement logical volumes
at install-time
- use PAM to implement user-level restrictions
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