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RedHat EX300 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Security & Authentication | 20% | - TLS/SSL service hardening - Access control and permissions - Kerberos and LDAP authentication - SELinux policy management |
| Topic 2: Network Services & Configuration | 25% | - Network time synchronization - IPv4/IPv6 networking and routing - Firewall and SELinux administration - DNS, HTTP, SMB, NFS, SMTP, SSH configuration |
| Topic 3: System Configuration & Management | 25% | - Boot process and runlevels - Kernel and sysctl configuration - File systems and quota management - Local storage and logical volume management |
| Topic 4: System Maintenance & Troubleshooting | 20% | - Performance monitoring and tuning - Scheduled tasks and process management - Service troubleshooting and recovery - Log management and analysis |
| Topic 5: Shell Scripting & Automation | 10% | - Writing and executing bash scripts - Conditionals, loops, and error handling |
RedHat Red Hat Certified Engineer - RHCE (v6+v7) Exam FAQ — Worth Buying
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The RedHat Red Hat Certified Engineer - RHCE (v6+v7) is RedHat's certification exam for Red Hat Certified Engineer (RHCE), at the Professional level. Short on time? Focused, simple-to-use material is the fix. Related credentials include Red Hat Certified System Administrator (RHCSA) EX200.
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The RedHat Red Hat Certified Engineer - RHCE (v6+v7) blueprint spans 5 domains — including Shell Scripting & Automation (10%), Network Services & Configuration (25%), System Maintenance & Troubleshooting (20%). The complete outline above lists every subtopic; budget your time by weight.
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RedHat Red Hat Certified Engineer - RHCE (v6+v7) Sample Questions:
CORRECT TEXT
RHCE Test Configuration Instructions
Information for the two systems you will use in test is the following:
system1.group3.example.com: is one of the main sever. system2.group3.example.com: mainly used as a client.
Password for both of the two systems is atenorth
System's IP is provided by DHCP, you can regard it as normal, or you can reset to Static IP in accordance with the following requirements:
system1.group3.example.com: 172.24.3.5
system2.group3.example.com: 172.24.3.10
The subnet mask is 255.255.255.0
Your system is a member of DNS domain group3.example.com. All systems in DNS domain group3.example.com are all in subnet 172.24.3.0/255.255.255.0, the same all systems in this subnet are also in group3.example.com, unless specialized, all network services required to be configured can be accessed by systems of domain group3.
host.group3.example.com provides a centralized authentication service domain GROUP3.EXAMPLE.COM, both system1 and system2 have already been pre-configured to be the client for this domain, this domain provides the following user account:
Firewall is enabled by default, you can turn it off when deemed appropriate, other settings about firewall may be in separate requirements.
Your system will be restarted before scoring, so please ensure that all modifications and service configurations you made still can be operated after the restart without manual intervention, virtual machine instances of all examinations must be able to enter the correct multi-user level after restart without manual assistance, it will be scored zero if the test using virtual machine system cannot be restarted or be properly restarted.
Corresponding distribution packages for the testing using operating system Red Hat Enterprise Linux version can be found in the following link:
http://server1.group3.example.com/rhel
Part of the requirements include host security, ensure your host security limit does not prevent the request to allow the host and network, although you correctly configured the network service but would have to allow the host or network is blocked, this also does not score.
You will notice that some requirements which clearly do not allow services be accessed by service domain my133t.org, systems of this domain are in subnet 172.25.1.0/252.255.255.0, and systems of these subnets also belong to my 133t.org domain.
PS: Notice that some test questions may depend on other exam questions, for example, you might be asked to perform a series of restrictions on a user, but this user creation may be required in other questions. For convenient identification, each exam question has some radio buttons to help you identify which questions you have already completed or not completed. Certainly, you do not need to care these buttons if you don't need them.
Configure a Database
Create a Maria DB database named Contacts on system1 and meet the following requirements at the same time:
The database should contain the contents of the database replication, URL for copying files is:
http://rhgls.domain11.example.com/materials/users.mdb
Database just can be accessed by localhost
In addition to the root user, this database only can be searched by user Luigi, user's password is redhat The password for root user is redhat, does not allow empty password
Correct Answer:
CORRECT TEXT
RHCE Test Configuration Instructions
Information for the two systems you will use in test is the following:
system1.group3.example.com: is one of the main sever. system2.group3.example.com: mainly used as a client.
Password for both of the two systems is atenorth
System's IP is provided by DHCP, you can regard it as normal, or you can reset to Static IP in accordance with the following requirements:
system1.group3.example.com: 172.24.3.5
system2.group3.example.com: 172.24.3.10
The subnet mask is 255.255.255.0
Your system is a member of DNS domain group3.example.com. All systems in DNS domain group3.example.com are all in subnet 172.24.3.0/255.255.255.0, the same all systems in this subnet are also in group3.example.com, unless specialized, all network services required to be configured can be accessed by systems of domain group3.
host.group3.example.com provides a centralized authentication service domain GROUP3.EXAMPLE.COM, both system1 and system2 have already been pre-configured to be the client for this domain, this domain provides the following user account:
Firewall is enabled by default, you can turn it off when deemed appropriate, other settings about firewall may be in separate requirements.
Your system will be restarted before scoring, so please ensure that all modifications and service configurations you made still can be operated after the restart without manual intervention, virtual machine instances of all examinations must be able to enter the correct multi-user level after restart without manual assistance, it will be scored zero if the test using virtual machine system cannot be restarted or be properly restarted.
Corresponding distribution packages for the testing using operating system Red Hat Enterprise Linux version can be found in the following link:
http://server1.group3.example.com/rhel
Part of the requirements include host security, ensure your host security limit does not prevent the request to allow the host and network, although you correctly configured the network service but would have to allow the host or network is blocked, this also does not score.
You will notice that some requirements which clearly do not allow services be accessed by service domain my133t.org, systems of this domain are in subnet 172.25.1.0/252.255.255.0, and systems of these subnets also belong to my 133t.org domain.
PS: Notice that some test questions may depend on other exam questions, for example, you might be asked to perform a series of restrictions on a user, but this user creation may be required in other questions. For convenient identification, each exam question has some radio buttons to help you identify which questions you have already completed or not completed. Certainly, you do not need to care these buttons if you don't need them.
Configure the Local Mail Service
Configure the mail service on system1 and system2, as required:
1. These systems do not accept external sending mails
2. Any mails sent locally are automatically routed to rhgls.domain11.example.com
3. Mails sent from these systems will be displayed from rhgls.domain11.example.com
4. You can send mail to local user 'arthur' to test your configuration system rhgls.domain11.example.com
5. You have already configured this user's mail to the following URL rhgls.domain11.example.com/received_mail/11
Correct Answer:
solution
Open rhgls.domain11.example.com/received_mail/11 in a browser
CORRECT TEXT
Install the Cron Schedule for jeff user to display "Hello" on daily 5:30.
Correct Answer:
Login as a root user
cat >schedule.txt
30 05 * * * /bin/echo "Hello"
crontab -u jeff schedule.txt
service crond restart
The cron system is essentially a smart alarm clock. When the alarm sounds, Linux runs the commands of your choice automatically. You can set the alarm clock to run at all sorts of regular time intervals.
Alternatively, the system allows you to run the command of your choice once, at a specified time in the future.
Red Hat configured the cron daemon, crond. By default, it checks a series of directories for jobs to run, every minute of every hour of every day. The crond checks the /var/spool/cron directory for jobs by user. It also checks for scheduled jobs for the computer under /etc/crontab and in the /etc/cron.d directory.
Here is the format of a line in crontab. Each of these columns is explained in more detail:
#minute, hour, day of month, month, day of week, command
* * * * * command
Entries in a crontab Command Line
Field Value
Minute 0-59
Hour Based on a 24-hour clock; for example, 23 = 11 p.m.
Day of month 1-31
Month 1-12, or jan, feb, mar, etc.
Day of week 0-7; where 0 and 7 are both Sunday; or sun, mon, tue, etc.
Command: The command you want to run
CORRECT TEXT
RHCE Test Configuration Instructions
Information for the two systems you will use in test is the following:
system1.group3.example.com: is one of the main sever. system2.group3.example.com: mainly used as a client.
Password for both of the two systems is atenorth
System's IP is provided by DHCP, you can regard it as normal, or you can reset to Static IP in accordance with the following requirements:
system1.group3.example.com: 172.24.3.5
system2.group3.example.com: 172.24.3.10
The subnet mask is 255.255.255.0
Your system is a member of DNS domain group3.example.com. All systems in DNS domain group3.example.com are all in subnet 172.24.3.0/255.255.255.0, the same all systems in this subnet are also in group3.example.com, unless specialized, all network services required to be configured can be accessed by systems of domain group3.
host.group3.example.com provides a centralized authentication service domain GROUP3.EXAMPLE.COM, both system1 and system2 have already been pre-configured to be the client for this domain, this domain provides the following user account:
Firewall is enabled by default, you can turn it off when deemed appropriate, other settings about firewall may be in separate requirements.
Your system will be restarted before scoring, so please ensure that all modifications and service configurations you made still can be operated after the restart without manual intervention, virtual machine instances of all examinations must be able to enter the correct multi-user level after restart without manual assistance, it will be scored zero if the test using virtual machine system cannot be restarted or be properly restarted.
Corresponding distribution packages for the testing using operating system Red Hat Enterprise Linux version can be found in the following link:
http://server1.group3.example.com/rhel
Part of the requirements include host security, ensure your host security limit does not prevent the request to allow the host and network, although you correctly configured the network service but would have to allow the host or network is blocked, this also does not score.
You will notice that some requirements which clearly do not allow services be accessed by service domain my133t.org, systems of this domain are in subnet 172.25.1.0/252.255.255.0, and systems of these subnets also belong to my 133t.org domain.
PS: Notice that some test questions may depend on other exam questions, for example, you might be asked to perform a series of restrictions on a user, but this user creation may be required in other questions. For convenient identification, each exam question has some radio buttons to help you identify which questions you have already completed or not completed. Certainly, you do not need to care these buttons if you don't need them.
Configure Security Web Service
Configure a TLS encryption for the site http://systeml.domain11.example.com, encrypt/, get a signed certificate from http://host.domain11.example.com/materials/system1.crt.
Get the certificate key from http://host.domain11.example.com/materials/system1.key. Get the signature authorization information of the certificate from
http://host.domain11.example.com/materials/domain11.crt
Correct Answer:
CORRECT TEXT
Make Secondary belongs the jeff and marion users on sysusers group. But harold user should not belongs to sysusers group.
Correct Answer:
usermod -G sysusersjeff
usermod -G sysusermarion
Verify by reading /etc/group file
Note:
Using usermod command we can make user belongs to different group. There are two types of group one primary and another is secondary. Primary group can be only one but user can belong to more than one group as secondary.
usermod -g groupname username - To change the primary group of the user. usermod -G groupname username - To make user belongs to secondary group.
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