EX300 | Rebirth Red Hat Certified Engineer - RHCE (v6+v7) EX300 Exam Answers

NEW QUESTION 1

Configure
the web server, which can be accessed by http://station.domain30.example.com.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 2

Connect to the email server and send email to admin, and it can be received by harry.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 3

Please set the selinux status as enforcing.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 4

There were two systems:
system1, main system on which most of the configuration take place
system2, some configuration here
Configure port forwarding.
Configure server X to forward traffic incoming on port 80/tcp from source network 172.25.X.0/255.255.255.0 to port on 5243/tcp.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 5

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

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 6

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.
Implement/configure a Web Service.
Configure
a site http://systeml. domain11.example.com/ on the system1, then execute the following steps:
(1)
Download file from http://rhgls.domain11.example.com/materials/station.html and rename this files index.html, don’t modify the file contents;
(2) Copy the file index.html to your web server's DocumentRoot directory
(3) Clients from domain group3.example.com can access to this web service
(4) Clients from domain my133t.org deny access to this web service

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:



systemctl restart firewalld

NEW QUESTION 7

Configure cron and don’t allow the user tom to use.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 8

Whoever creates the files/directories on /storage group owner should be automatically should be the same group owner of /storage.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
chmod g+s /storage
Verify using: ls -ld /stora Note:
Permission should be like:
drwxrws--- 2 root sysusers 4096 Mar 16 18:08 /storage If SGID bit is set on directory then who every users creates the files on directory group owner automatically the owner of parent directory.
To set the SGID bit: chmod g+s directory
To Remove the SGID bit: chmod g-s directory

NEW QUESTION 9

There were two systems:
system1, main system on which most of the configuration take place
system2, some configuration here
Virtual hosting.
Setup a virtual host with an alternate document root.
Extend your web to include a virtual for the site vhostsX.example.com">http://vhostsX.example.com
Set the document root as /usr/local/vhosts
Download station.network0.example.com/pub/rhce/vhost/html">
http://station.network0.example.com/pub/rhce/vhost/html
Rename it as index.html
Place this document root of the virtual host
Note: the other websites configures for your server must still accessible. vhosts.networkX.example.com is already provided by the name server on example.com

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 10

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 iSCSI Clients
Configure the system2 to make it can link to iqn.2014-09.com.example.domain11:system1 provided by the system, meet the following requirements at the same time:
Block device iSCSI contains a 2100MIB partition, and is formatted as ext4.
This partition mount to the /mnt/data and mount automatically during the system start-up.
1. iSCSI device automatically loads during the system start-up.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 11

Make Secondary belongs the jeff and marion users on sysusers group. But harold user should not belongs to sysusers group.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
usermod -G sysusers jeff
usermod -G sysuser marion
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.

NEW QUESTION 12

There were two systems:
system1, main system on which most of the configuration take place
system2, some configuration here
Dynamic Webpage Configuration.
Configure website wsgiX.example.com:8961">http://wsgiX.example.com:8961 on system1 with the documentroot /var/www/scripts
Site should execute webapp.wsgi
Page is already provided on classroom.example.com/pub/webapp.wsgi">
http://classroom.example.com/pub/webapp.wsgi
Content of the script should not be modified

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:


Verification from Server2:

NEW QUESTION 13

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 SSH Access as required:
Users can visit your two virtual machine systems via clients of domain group3.example.com through SSH remote.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
Solution 1:
Modify file /etc/hosts.allow Add a line: sshd: 172.24.11. Modify file /etc/hosts.deny Add a line: sshd: 172.25.0.
Both of them need to be configured. Solution 2:
Add a firewall
firewall-cmd –zone=block --add-source=172.25.11.0/24 --permanent firewall-cmd –reload Both of them need to be configured

NEW QUESTION 14

Configure the samba server, share /common, which can be browsed. The user harry can only read it. If it is needed, the password for harry is harryuser.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 15

Deploy your SMTP mail service and complete it by the following requirements:
-- Your mail service must be able to receive the local and remote mails
-- harry must be able to receive the remote mail
-- The mail which is delivered to mary should be put into the mail /var/spool/mail/mary

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 16

There were two systems:
system1, main system on which most of the configuration take place
system2, some configuration here
Webserver.
Implement a webserver for the site http://serverX.example.com
Download the webpage from http://station.network0.example.com/pub/rhce/rhce.html
Rename the downloaded file in to index.html
Copy the file into the document root
Do not make any modification with the content of the index.html
Clients within my22ilt.org should NOT access the webserver on your systems

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 17

Configure the web server and implement the virtual host.
http://www.domain30.example.com
can access the pages under the directory:
http://ip/dir/example.html.
And make sure, http://station.domain30.example.com can also access the previous content.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 18

Add a cron schedule to take full backup of /home on every day at 5:30 pm to /dev/st0 device.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
1. vi /var/schedule
30 17 * * * /sbin/dump -0u /dev/st0 /dev/hda7
2. crontab /var/schedule
3. service crond restart
We can add the cron schedule either by specifying the scripts path on /etc/crontab file or by creating on text file on crontab pattern.
cron helps to schedule on recurring events. Pattern of cron is: Minute Hour Day of Month Month Day of Week Commands
0-59 0-23 1-31 1-12 0-7 where 0 and 7 mean Sunday.
Note * means every. To execute the command on every two minutes */2.

NEW QUESTION 19

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 Multi-User SMB Mounts.
Share the directory /devops through SMB on the systeml, as required:
1. The share name is devops
2. The shared directory devops just can be used by clients in domain11.example.com
3. The shared directory devop must be able to be browsed
4. User silene must be able to access this share through read, access code is redhat
5. User akira must be able to access this share through read and write, access code is redhat
6. This share permanently mount to system2. domain11.example.com the user /mnt/dev, make user silene as authentication any users can get temporary write permissions from akira

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
system1

system2:

Switch to user akira on the system2, access to /mnt/dev and view files
su akira cd /mnt/dev ls cifscreds add system1 touch 1

NEW QUESTION 20

Download
file from http://ip/dir/restircted.html, and the local user harry can access it by http://station.domain30.example.com/restircted.html, and cannot be accessed by t3gg.com.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 21

There were two systems:
system1, main system on which most of the configuration take place
system2, some configuration here
Secured webserver.
Configure the website https://serverX.example.com with TLS
SSLCertificate file http://classroom.example.com/pub/rhce/tls/certs/system1.networkX.crt
SSLCertificatekeyfile http://classroom.example.com/pub/rhce/tls/private/system1.networkX.key
SSL CA certificate file http://classroom.example.com/pub/example-ca.crt

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 22

Arrange
a web service address is: http://serverX.example.com, X is the number of your exam machine. Deploy it in accordance with the following requirements:
Download ftp//instructor.example.com/pub/rhce/server.html
Cannot do any modification to file document server.html
Rename file document server.html as index.html
Copy the file document server.html to DocumentRoo

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 23
......