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 Vendor: Red Hat  Exam Code: EX300  Exam Name: Red Hat Certified Engineer (RHCE) (v6+v7 version)  Part C – V6 Exam B Questions Visit PassLeader and Download Full Version EX300 Exam Dumps

------------------------------------------- For v6 Exam B ------------------------------------------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: krishna (password: atenorth) sergio (password: atenorth) EX300 Exam Dumps

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Free VCE and PDF Exam Dumps from PassLeader kaito (password: atenorth) 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, 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 questions have 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. 1. Configure SELINUX Modify the state of the SElinux to Enforcing mode Use VIM /etc/selinux Answer: getenforce

// View the current SELINUX mode setenforce 1 // Sets the SElinux temporarily to enforcing mode vim /etc/selinux/config SELINUX=enforcing :wq getenforce enforcing 2. Configure SSH Access Configure SSH Access according to the following requirements: (1) Users can remote access both of your two virtual machine systems through SSH from client of domain group3.example.com (2) Clients in domain my133t.org cannnot access both of your virtual machine systems EX300 Exam Dumps

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Free VCE and PDF Exam Dumps from PassLeader Answer: Modify /etc/hosts.allow file Add sshd: 172.24.11. Modify /etc/hosts.deny file Add sshd: 172.25.0.

// You need to configure that on both two virtual machine systems Or Add the firewall policy firewall-cmd –zone=block --add-source=172.25.11.0/24 --permanent firewall-cmd –reload

// You need to configure that on both two virtual machine systems 3. Customize the User Environment Create a custom on system1 and system2 named qstat and this custom command will execute the following command: /bin/ps – Ao pid,tt,user,fname,rsz This command is valid for all users in systems. Answer: vim /etc/bashrc // Restart remain valid alias qstat=’/bin/ps –Ao pid,tt,user,fname,rsz’ :wq

source /etc/bashrc alias qstat

// Check if there is qstat

// You need to configure that on both two systems 4. Configure Port Forwarding Configure port forwarding on system1, requirements are as follows: (1) The systems in network 172.24.11.0/24, local port 5423 for accessing system1 will be forwarded to 80 (2) This setting must be permanent Answer: Using graphical interface configuration In the CLI use firewall config - open graphical interface Set configuration as permanent Add a strategy to the public area of the “Port Forwarding”

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systemctl restart firewalld.service

// Restart the firewall policy

5. Configure Link Aggregation Configure a link between system1.group3.example.com and system2.group.example.com according to the following requirements: (1) This link use interfaces eth1 and eth2 (2) This link still can work when one of the interfaces fails (3) This link use the following address 172.16.3.20/255.255.255.0 on system1 (4) This link use the following address 172.16.3.25/255.255.255.0 on system2 (5) This link still keep normal after system reboot Answer: If you don't remember how to write the name you can view the example in /var/share/doc/team 1.9 / example_configs/ EX300 Exam Dumps

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Free VCE and PDF Exam Dumps from PassLeader nmcli

connection

add

con-name

team0

type

team

ifname

team0

config

'{"runner":{"name":"activebackup"}}' nmcli con modify team0 ipv4.addresses '172.16.11.25/24' nmcli connection modify team0 ipv4.method manual nmcli connection add type team-slave con-name team0-p1 ifname eth1 master team0 nmcli connection add type team-slave con-name team0-p2 ifname eth2 master team0 nmcli connection up team0 nmcli con up team0-p1 nmcli con up team0-p2 6. Configure IPV6 Address Configure interface eth0 on your test system, using the following Ipv6 address: (1) The address of system1 should be 2003:ac18::305/64 (2) The address of system2 should be 2003:ac18::30a/64 (3) Both two systems must be able to communicate with systems in network 2003:ac18/64 (4) The address must still take effect after restart (5) Bot two systems must maintain the current Ipv4 address and can communicate Answer: nmcli con mod eth0 ipv6.addresses “2003:ac18::305/64” nmcli con mod eth0 ipv6.method manual systemctl restart network nmcli con mod eth0 ipv6.addresses “2003:ac18::30a/64” nmcli con mod eth0 ipv6.method manual systemctl restart network ping6 2003:ac18::30a 7. Configure Local Mail Service Configure mail service on system1 and system2, meet the following requirements: (1) These services do not receive external sending mails (2) Any mails transmitted by local will be automatically routed to rhgls.domain11.example.com (3) Mails sent from these systems display from rhgls.domain11.example.com (4) You can test you configuration by sending mails to local user ‘arthur’, system

rhgls.domain11.example.com (6) You have already configured this user’s mail to the following URL

rhgls.domain11.example.com/received_mail/11 Answer: EX300 Exam Dumps

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Free VCE and PDF Exam Dumps from PassLeader postconf -e local_transport=err:XX vim /etc/postfix/main.cf relayhost=[rhgls.domain11.exmaple.com] postconf -e myorigin=domain11.example.com systemctl restart postfix echo aaa | mail -S hello dave Open in a browser rhgls.domain11.example.com/received_mail/11 8. Configure SMB Shared Folder Configure the SMB service on system1 Your SMB server must be a member of the STAFF Working Group Share the folder /common and the name must be common Only clients of domain11.example.com can access the shared common common must can be read User andy must can read the content of the shared, if necessary, verification password is redhat Answer: system1: yum -y install samba samba-client firewall-cmd --add-service=samba --permanent firewall-cmd --add-service=mountd –permanent systemctl restart firewalld vim /etc/samba/smb.conf workgroup = STAFF [common] path = /common hosts allow = 172.24.11. browseable = yes :wq mkdir /common chcon –R –t samba_share_t

/common/

smbpasswd -a andy systemctl start smb systemctl enable samba system2: yum install –y cifs-utils samba-client 9. Configure Multi-User SMB Mounts Share directory /devops via SMB and meet the following requirements: (1) The share name is devops EX300 Exam Dumps

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Free VCE and PDF Exam Dumps from PassLeader (2) The shared directory devops can only be used by clients in domain domain11.example.com (3) The shared directory must can be browsed (4) User kenji must be able to access this share through reading, accessing password is redhat (5) User chihiro must be able to access this share through reading and writing, accessing password is redhat This share permeant mount to directory /mnt/dev in system2.domain11.example.com, and let user silene as an authentication that any users can obtain temporary permission to write through user akira Answer: system1: mkdir /devops chcon -R -t samba_share_t /devops/ chmod o+w /devops/ vim /etc/samba/smb.conf [devops] path = /devops hosts allow = 172.24.11. browseable = yes writable = no write list = akira :wq systemctl restart smb smbpasswd -a silene smbpasswd -a akira system2: mkdir /mnt/dev smbclient -L /system1/ -U silene vim /etc/fstab //system1/devops

/mnt/dev

cifs

defaults,multiuser,username=silene,password=redhat,sec=ntlmssp 0 0 df –hT Testing:

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

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Free VCE and PDF Exam Dumps from PassLeader 10. Configure NFS Service Configure NFS service on system1, requirements are as follows: (1) Share the directory /public in read access and only can be accessed by systems in domain domain11.example.com (2) Share the directory /protected in read-write access and can be accessed by systems in domain11.example.com (3) Access /protected through secure encryption from kerberos, you can use the key from the following URL http://host.domain11.example.com/materials/nfs_server.keytab (4) The directory /protected should contain a subdirectory named project and owner is deepak (5) User deepak can read-write access /protected/project Answer: system1: vim /etc/exports /protected 172.24.11.0/24(rw,sync,sec=krb5p) /public 172.24.11.0/24(ro,sync) wget

-O

/etc/krb5.keytab

http://host.domain11.example.com/materials/nfs_server.keytab vim /etc/sysconfig/nfs RPCNFSDARGS="-V 4.2 " :wq systemctl restart nfs systemctl start nfs-secure-server systemctl enable nfs-secure-server exportfs –ra showmount –e firewall-cmd --add-service=nfs –permanent firewall-cmd --add-service=rpc-bind –permanent firewall-cmd --add-service=mountd–permanent systemc

tl restart fiewalld

mkdir -p /protected/project chown deepak /protected/project/ ll /protected/ chcon -R -t public_content_t /protected/project/ 11. Mount an NFS Share Mount an NFS share system1.domain11.example.comon system2, and meet the following requirements: (1) Mount /public to the directory /mnt/nfsmount (2) Mount /protected to the directory /mnt/nfssecure and use a safe mode. Key can download from EX300 Exam Dumps

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Free VCE and PDF Exam Dumps from PassLeader the following URL: http://host.domain11.example.com/materials/nfs_client.keytab (3) User deepak can creat files in /mnt/nfssecure/project (4) These file systems mount automatically when system start Answer: system2: showmount -e system1 mkdir -p /mnt/nfsmount vim /etc/fstab system1:/public

/mnt/nfsmount nfs defaults 0 0

mount –a df –h mkdir /mnt/nfssecure wget

-O

/etc/krb5.keytab

http://host.domain11.example.com/materials/nfs_client.keytab vim /etc/fstab system1: /protected

/mnt/nfssecure nfs defaults,sec=krb5p,v4.2

0 0

:wq mount –a 12. Configure a Web Service Configure a web on system1: http://systeml.domain11.example.com/ then implement the following steps: (1) Download file from http://rhgls.domain11.example.com/materials/station.html and rename this file as 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 Answer: yum groupinstall web\* -y systemctl start httpd systemctl enable httpd vim /etc/httpd/conf/httpd.conf /ServerName ServerName server1.domain11.example.com:80 systemctl restart httpd wget -O index.html http://rhgls.domain11.example.com/materials/station.html EX300 Exam Dumps

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systemctl restart firewalld 13. Configure Security Web Service Configure TLS encryption a for the site http://systeml.domain11.example.com, get a signed certificate from http://host.domain11.example.com/materials/system1.crt, get the key for this certificate from http://host.domain11.example.com/materials/system1.key, get this certificate’s EX300 Exam Dumps

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and

authorization

information

from

http://host.domain11.example.com/materials/domain11.crt Answer: <virtualhost *:80> documentroot /var/www/html servername system1.domain11.example.com </virtualhost> <virtualhost *:443> documentroot /var/www/html servername system1.domain11.example.com SSLEngine on SSLCertificateFile /etc/pki/tls/certs/server1.crt SSLCertificateKeyFile /etc/pki/tls/private/server1.key SSLCertificateChainFile /etc/pki/tls/certs/domain11.crt <virtualhost> systemctl restart httpd firewall-cmd --add-service=https –permanent systemctl restart firewalld 14. Configure Virtual Hosts Expand

your

web

server

on

system1,

create

a

virtual

host

for

the

site

http://www.domain11.example.com then perform the following steps: (1) Set the DocumentRoot to /var/www/virtual (2) Download a file from http://rhgls.domain11.example.com/materials/www.html and renamed as index.html, don’t do any modifications to index.html content (3) Put the file index.html into the DocumentRoot directory of the virtual host (4) Ensure user andy can create files under /var/www/virtual Notice: the original site http://systeml.domian11.example.com/ must still can be accessed, the name server domain11.example.com provide DNS for host name of www.domain11.example.com Answer: mkdir –p /var/www/ virtual cd /var/www/ virtual wget –O index.html http://rhgls.domain11.example.com/materials/www.html vim /etc/httpd/conf/httpd.conf <virtualhost *:80> documentroot /var/www/virtual servername www.domain11.example.com </virtualhost> EX300 Exam Dumps

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Free VCE and PDF Exam Dumps from PassLeader setfacl -m u:andy:rwx /var/www/virtual su andy touch /var/www/virtual/11.html 15. Configure the Access to the Web Content Create a directory named private under the directory DocumentRoot in the web server of system1, requirements are the following: (1)

Download

a

copy

of

a

file

to

this

directory

from

http://rhgls.domain11.example.com/materials/private.html and rename as index.htm (2) Dont do any modifications to this file content (3) Anyone can browse the content of private in system1, but cannot access this directory through other systems Answer: mkdir /var/www/virtual/private mkdir /var/www/html/private cd /var/www/virtual/private wget

-O

index.html

http://rhgls.domain11.example.com/materials/private.html cd /var/www/html/private wget

-O

index.html

http://rhgls.domain11.example.com/materials/private.html <Directory "/var/www/html/private"> AllowOverride none Require all denied Require local </Directory> <Directory "/var/www/virtual/private"> AllowOverride none Require local Require all denied </Directory> 16. Realize Dynamic Web Content …… 17. Create a script …… 18. Create a user Adding Script EX300 Exam Dumps

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Free VCE and PDF Exam Dumps from PassLeader …… 19. Configure iSCSI Server …… 20. Configure iSCSI Client …… 21. Configure a Database …… 22. Database Query ……

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