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Free EX300 Demo Online For Red-Hat Certifitcation:

NEW QUESTION 1

Configure ssh to allow user harry to access, reject the domain t3gg.com (172.25.0.0/16) to access.


Solution:
EX300 dumps exhibit

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 2

Expand
your web service including a virtual hosting, the address ishttp://wwwX.example.com, X is the number of your exam machine. However, requiring you do as the following:
-- Set up the DocumentRoot of this virtual hosting as /var/http/virtual
-- Download ftp//instructor.example.com/pub/rhce/www.html
-- Rename www.html file document as index.html
-- Move this file document to this virtual hosting's DocumentRoot
-- Don't do any changes to this document
-- Making sure that harry users are able to create project in /var/http/virtual
Attention:
Original web address is http://serverX.example.com must also can be browsed. The DNS of the Server instructor.example.com has already been analyzed as the domain wwwX.example.com.


Solution:
EX300 dumps exhibit
Notice: The priority level order of deny, allow is deployed: The back is higher than in front of the priority. It means allow -> deny

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 3

Deploying your exam system: link to the iscsi target in the instructor.example.com and distinguish it well, then format as ext3 file system. You must be able to mount the file system of the iscsi target to the /mnt/iscsi directory in your own system and make this file system can automatically mount (permanently mount) after system restart.


Solution:
EX300 dumps exhibit
Note: This part also needs to be formatted and modify /etc/fstab mount -

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 4

Configure the nfs server, share the /common directory to domain30.example.com, and allow client to have the root user right when access as a root user.


Solution:
EX300 dumps exhibit

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

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:
EX300 dumps exhibit
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


Solution:
solution
EX300 dumps exhibit
Open rhgls.domain11.example.com/received_mail/11 in a browser

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 6

Write a script /root/program. The request is when you input the kernel parameters for script, the script should return to user. When input the user parameters, the script should return to kernel. And when the script has no parameters or the parameters are wrong, the standard error output should be “usage:/root/program kernel|user”.


Solution:
EX300 dumps exhibit

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 7

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:
EX300 dumps exhibit
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 NFS service
Configure the NFS service on the system1, as required:
1. Share the directory /public in read only way, just can be accessed by systems in domain11.example.com at the same time.
2. Share the directory /protected in rad and write way, Kerberos security encryption required, you can use the key provided by the following URL:
http://host.domain11.example.com/materials/nfs_server.keytab
3. The directory /protected should contain the sub directory named project and the owner name is deepak;
4. User deepak can access /protected/project in read and write ways


Solution:
system1:
EX300 dumps exhibit

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 8

Configure a mail alias to your MTA, for example, send emails to harry but mary actually is receiving emails. Answer:
Please see explanation


Solution:
EX300 dumps exhibit
Notice:
This problem is a trap. The question no 31 requires that harry must be able to receive remote emails but the problems in the question no 32 requires mary to receive harry’s emails. So harry must be added when you are deploying aliases.

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 9

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:
EX300 dumps exhibit
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.


Solution:
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

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 10

There were two systems:
system1, main system on which most of the configuration take place
system2, some configuration here
Link aggregation.
Configure your serverX and desktop, which watches for link changes and selects an active port for data transfers.
serverX should have the address as 192.169.X.10/255.255.255.0
desktopX should have the address as 192.168.X.11/255.255.255.0
(Note: where X is your station number)


Solution:
On Server Machine:
EX300 dumps exhibit
Verification & Testing:
EX300 dumps exhibit
On Desktop Machine:
EX300 dumps exhibit
Verification & Testing:
EX300 dumps exhibit

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 11

Configure an email server domain30.example.com, and it requests to send and receive emails from the local server or the user harry can send or receive emails from network. The email of user harry is
/var/spool/mail/harry. Please note: the DNS server has already been MX record analyzed.


Solution:
EX300 dumps exhibit

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 12

Configure the kernel parameters: rhelblq=1, and it is requested that your kernel parameters can be verified through /proc/cmdline.


Solution:
EX300 dumps exhibit

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 13

Via nfs service share the /common directory in your system, just doing ONE share in example.com domain. Answer:
Please see explanation


Solution:
EX300 dumps exhibit

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 14

Prevent Mary from performing user configuration tasks in your system.


Solution:
EX300 dumps exhibit
Conclusions:
1. I find that it is common to add various service access limits in the exam RHCE. The exercises like: require
one network segment can be accessed another network segments can not be accessed, the following are some conclusions for various service:
tcp_wrappers:/etc/hosts.allow,/etc/hosts.deny
tcp_wrappers can filter the TCP’s accessing service. TCP whether has the filtering function which depends on this service whether use the function library of tcp_wrappers, or this service whether has the xinetd process of starting function of tcp_wrappers. tcp_wrappers’s main configuration file is /etc/hosts.allow,/etc/hosts.deny.
And the priority of the documents in hosts. allow is higher than hosts. deny. Visit will be passed if no match was found.
sshd,vsftpd can use the filtering service of tcp_wrappers. Configuration example:
EX300 dumps exhibit
Notice:
The two configuration files’ syntax can refer to hosts_access (5) and hosts_options(5) sshd_config
There are four parameters in this configuration file: DenyUsers, AllowUsers, DenyGroups, AllowGroups, they are used to limit some users or user groups to proceed Remote Login through the SSH. These parameters’ priority level is DenyUsers->AllowUsers->DenyGroups->AllowGroups
Configuration example:
EX300 dumps exhibit
httpd Service
Through the /etc/httpd/conf/httpd.conf in parameters, can add <Directory> to control the url access. Just as:
EX300 dumps exhibit
Notice:
So pay attention, deny’s and allow’s priority level in order deny,allow is: the backer has the higher priority level. But here, allow’s priority has a higher priority level.
nfs Service
nfs service directly control the visits through file /etc/exports, just as:
EX300 dumps exhibit
samba Service
Parameter hosts allow in /etc/samba/smb.conf which is used as Access Control, just as:
EX300 dumps exhibit
2. Paying attention to use Mount parameters: _netdev,defaults when you are mounting ISCSI disk.
3. Stop the NetworkManager
/etc/init.d/NetworkManager stop chkconfig NetworkManager off
4. When you are deploying ifcfg-ethX, add parameters: PEERDNS=no
5. Empty the firewall in RHCSARHCE:
EX300 dumps exhibit
6. Narrow lv steps:
EX300 dumps exhibit
7. Mount the using command - swap which is newly added in /etc/fstab
8. If Verification is not passed when you are installing software, can import public key: rpm import
/etc/pki/rpm…/…release and so on. In yum.repo, you also can deploy gpgkey, for example, gpgkey=/etc/pki/rpm…/…release
9. When you are using “Find” command to search and keep these files, paying attention to use cp -a to copy files if you use user name and authority as your searching methods.

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 15

Create the users named jeff, marion, harold


Solution:
useradd jeff
useradd marion
useradd harold
Note:
useradd command is used to create the user.
All user's information stores in /etc/passwd and user’s shadow password stores in /etc/shadow.

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 16

In accordance with the following requirements, share /common directory through smb service.
-- your sub service must be in the SAMBA working-set
-- the shared name of common is common
-- the common share just can be shared by the customers in the example.com domain
-- the common must be available for browsing
-- mary must be able to login to the SMB share and for read operation, “password” is the secret code if it need to be verified.


Solution:
EX300 dumps exhibit

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 17

There were two systems:
system1, main system on which most of the configuration take place
system2, some configuration here
NFS server.
Configure serverX with the following requirements
Share the /nfsshare directory within the example.com domain clients only, share must be writable
Share the /nfssecure, enable krb5p security to secure access to the NFS share from URL
http://station.network0.example.com/pub/keytabs/serverX.keytab
Create a directory named as protected under /nfssecure
The exported directory should have read/write access from all subdomains of the example.com domain Ensure the directory /nfssecure/protected should be owned by the user harry with read/write permission


Solution:
EX300 dumps exhibit
EX300 dumps exhibit

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 18

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


Solution:
EX300 dumps exhibit

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 19
......

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