EX300 | Simulation EX300 Dumps Questions 2021

NEW QUESTION 1
There are Mail servers, Web Servers, DNS Servers and Log Server. Log Server is already configured. You should configure the mail server, web server and dns server to send the logs to log server.

Answer:

Explanation: According to question, log server is already configured. We have to configure the mail, web and dns server for log redirection. In mail, web and dns server:
vi /etc/syslog.conf mail.* @logserveraddress
service syslog restart
mail is the facility and * means the priority. It sends logs of mail services into log server.
Topic 4, Exam Pool D

NEW QUESTION 2
Shutdown the /root/cdrom.iso under /opt/data and set as boot automatically mount.

Answer:

Explanation:

NEW QUESTION 3
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 port forwarding on the system1, as required:
1. The systems in the network 172.24.11.0/24, local port 5423 for accessing system1 will be forwarded to 80
(2) This setting must be permanent

Answer:

Explanation: Use Graphical interface to configure
Use firewall-config to open the Graphical interface in CLI Adjust the configuration: drop-down menu to permanent Add a strategy to the public area of the “Port Forwarding”

systemctl restart firewalld.service // Reload the firewall strategy

NEW QUESTION 4
There were two systems:
system1, main system on which most of the configuration take place
system2, some configuration here
MariaDB
Restore a database on serverX from the backup file classroom.com/pub/rhce/backup.m">
http://classroom.com/pub/rhce/backup.mdb
The database name should be Contacts. It should be access only within the localhost
Set a password for root user as “Postroll”. Other than the root user, the user Andrew is able to read the query from the above mentioned database. The user should be authenticated with the password as
“Postroll”.

Answer:

Explanation:

NEW QUESTION 5
Create the directory /storage and group owner should be the sysusers group.

Answer:

Explanation: chgrp sysusers /storage
Verify using ls -ld /storage command.
You should get like drwxr-x--- 2 root sysusers 4096 Mar 16 17:59 /storage chgrp command is used to change the group ownership of particular files or directory.
Another way you can use the chown command. chown root:sysusers /storage

NEW QUESTION 6
You access the iscsi shared storage. The storage server ip is 172.24.30.100. Separate of 1500M space, format as ext3 file system, mount under /mnt/data, and make sure the root-start automatically mount.

Answer:

Explanation:

NEW QUESTION 7
In accordance with the following requirements to deploy ssh login service:
harry belongs to example.com which can remote login your systems.
However, users of remote.test cannot use ssh login to your machine.

Answer:

Explanation:
Notice:
tcp_wrappers has two configuration files and their priority level is /etc/hosts.allow->/etc/hosts.deny

NEW QUESTION 8
Create the group named sysusers.

Answer:

Explanation: 1. groupadd sysusers groupadd command is used to create the group and all group information is stored in
/etc/group file.

NEW QUESTION 9
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.

Answer:

Explanation:

NEW QUESTION 10
Whoever creates the files/directories on /storage group owner should be automatically should be the same group owner of /storage.

Answer:

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 11
Create the users named jeff, marion, harold

Answer:

Explanation: 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.

NEW QUESTION 12
Install the Cron Schedule for jeff user to display "Hello" on daily 5:30.

Answer:

Explanation: 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

NEW QUESTION 13
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

Answer:

Explanation:

NEW QUESTION 14
One Logical Volume is created named as myvol under vo volume group and is mounted. The Initial Size of that Logical Volume is 400MB. Make successfully that the size of Logical Volume 200MB without losing any data. The size of logical volume 200MB to 210MB will be acceptable.

Answer:

Explanation:

NEW QUESTION 15
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.
Database Query
Use database Contacts on the system1, and use the corresponding SQL to search and answer the following questions:
What’s the person name whose password is solicitous?
How many people’s names are John and live is Shanghai at the same time?

Answer:

Explanation:

NEW QUESTION 16
Configure cron and don’t allow the user tom to use.

Answer:

Explanation: