EX200 Exam Dumps – Our Features

Install the Kernel Upgrade.Install suitable kernel update from:Following requirements must be met:Updated kernel used as the default kernel of system start-up.The original kernel is still valid and can be guided when system starts up.

• Explanation:
  Using the browser open the URL in the question, download kernel file to root or home directory.
  uname --r// check the current kernel version
  rpm --ivh kernel-*.rpm
  vi /boot/grub.conf// check
  Some questions are: Install and upgrade the kernel as required. To ensure that grub2 is the default item for startup.
  Yum repo : http://content.example.com/rhel7.0/x86-64/errata
  OR
  uname -r // check kernel
  Yum-config-manager --add-repo=''http://content.example.com/rhel7.0/x86-64/ errata''
  Yum clean all
  Yum list kernel// install directly
  Yum -y install kernel// stuck with it, do not pipe! Please do not pipe!
  Default enable new kernel grub2-editenv list// check
  Modify grub2-set-default ''kernel full name''
  Grub2-mkconfig --o/boot/grub2/grub.cfg// Refresh
  

Create a logical volumeCreate a new logical volume as required:Name the logical volume as database, belongs to datastore of the volume group, size is 50 PE.Expansion size of each volume in volume group datastore is 16MB.Use ext3 to format this new logical volume, this logical volume should automatically mount to /mnt/database

• Explanation:
  fdisk -cu /dev/vda// Create a 1G partition, modified when needed
  partx --a /dev/vda
  pvcreate /dev/vdax
  vgcreate datastore /dev/vdax --s 16M
  lvcreate-- l 50 --n database datastore
  mkfs.ext3 /dev/datastore/database
  mkdir /mnt/database
  mount /dev/datastore/database /mnt/database/ df --Th
  vi /etc/fstab
  /dev/datastore /database /mnt/database/ ext3 defaults 0 mount --a
  Restart and check all the questions requirements.
  

Search a StringFind out all the columns that contains the string seismic within /usr/share/dict/words, then copy all these columns to /root/lines.tx in original order, there is no blank line, all columns must be the accurate copy of the original columns.

• Explanation:
  grep seismic /usr/share/dict/words> /root/lines.txt
  

Please open the ip_forward, and take effect permanently.

• Explanation:
  vim /etc/sysctl.conf net.ipv4.ip_forward = 1
  sysctl --w (takes effect immediately)
  If no ''sysctl.conf'' option, use these commands:
  sysctl --a |grep net.ipv4
  sysctl --P net.ipv4.ip_forward = 1
  sysctl -w
  

Upgrade the kernel, start the new kernel by default. kernel download from this address:

• Explanation:
  Download the new kernel file and then install it.
  [root@desktop8 Desktop]# ls
  kernel-2.6.32-71.7.1.el6.x86_64.rpm
  kernel-firmware-2.6.32-71.7.1.el6.noarch.rpm
  [root@desktop8 Desktop]# rpm -ivh kernel-*
  Preparing... ############
  [100%]
  1:kernel-firmware
  ############ [ 50%]
  2:kernel
  ############ [100%]
  Verify the grub.conf file, whether use the new kernel as the default boot. [root@desktop8 Desktop]# cat /boot/grub/grub.conf default=0
  title Red Hat Enterprise Linux Server (2.6.32-71.7.1.el6.x86_64)
  root (hd0,0)
  kernel /vmlinuz-2.6.32-71.7.1.el6.x86_64 ro root=/dev/mapper/vol0-root rd_LVM_LV=vol0/root rd_NO_LUKS rd_NO_MD
  rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us crashkernel=auto rhgb quiet
  initrd /initramfs-2.6.32-71.7.1.el6.x86_64.img
  

Create a new logical volume according to the following requirements:The logical volume is named database and belongs to the datastore volume group and has a size of 50 extents.Logical volumes in the datastore volume group should have an extent size of 16 MB.Format the new logical volume with a ext3 filesystem.The logical volume should be automatically mounted under /mnt/database at system boot time.

• Explanation:
  fdisk -cu /dev/vda
  partx -a /dev/vda
  pvcreate /dev/vdax
  vgcreate datastore /dev/vdax -s 16M
  lvcreate-l 50 -n database datastore
  mkfs.ext3 /dev/datastore/database
  mkdir /mnt/database
  mount /dev/datastore/database /mnt/database/ df -Th
  vi /etc/fstab
  /dev/datastore /database /mnt/database/ ext3 defaults 0 mount -a
  

Successfully resolve to server1.example.com where your DNS server is 172.24.254.254.

• Explanation:
  vi /etc/resolv.conf
  nameserver 172.24.254.254
  host server1.example.com
  On every clients, DNS server is specified in /etc/resolv.conf. When you request by name it tries to resolv from DNS server.
  

Configure autofs.Configure the autofs automatically mount to the home directory of LDAP, as required:server.domain11.example.com use NFS to share the home to your system. This file system contains a preconfigured home directory of user ldapuserX.Home directory of ldapuserX is:server.domain11.example.com /home/guests/ldapuserHome directory of ldapuserX should automatically mount to the ldapuserX of the local /home/guests Home directory's write permissions must be available for users ldapuser1's password is password

• Explanation:
  yum install -y autofs
  mkdir /home/rehome
  /etc/auto.master
  /home/rehome/etc/auto.ldap
  Keep then exit
  cp /etc/auto.misc /etc/auto.ldap
  /etc/auto.ldap
  ldapuserX -fstype=nfs,rw server.domain11.example.com:/home/guests/
  Keep then exit
  systemctl start autofs
  systemctl enable autofs
  su - ldapuserX// test
  If the above solutions cannot create files or the command prompt is -bash-4.2$, it maybe exist multi-level directory, this needs to change the server.domain11.example.com:/home/guests/ to server.domain11.example.com:/home/guests/ldapuserX. What is multi-level directory? It means there is a directory of ldapuserX under the /home/guests/ldapuserX in the questions. This directory is the real directory.
  

Copy /etc/fstab document to /var/TMP directory. According the following requirements to configure the permission of this document.The owner of this document must be root.This document belongs to root group.User mary have read and write permissions for this document.User alice have read and execute permissions for this document.Create user named bob, set uid is 1000. Bob have read and write permissions for this document.All users has read permission for this document in the system.

• Explanation:
  cp /etc/fstab /var/tmp
  chown root:root /var/tmp/fstab
  chmod a-x /var/tmp/fstab
  setfacl --m u:mary:rw /var/tmp/fstab
  setfacl --m u:alice:rx /var/tmp/fstab
  useradd --u 1000 bob
  

One Domain RHCE is configured in your lab, your domain server is server1.example.com. nisuser2001, nisuser2002, nisuser2003 user are created on your server 192.168.0.254:/rhome/stationx/nisuser2001. Make sure that when NIS user login in your system automatically mount the home directory. Home directory is separately shared on server /rhome/stationx/ where x is your Station number.

• Explanation:
  use the authconfig --nisserver=<NIS SERVER> --nisdomain=<NIS DOMAIN> -- update
  Example: authconfig --niserver=192.168.0.254 --nisdomain=RHCE --update or system-config-authentication
  Click on Enable NIS
  Type the NIS Domain: RHCE
  Type Server 192.168.0.254 then click on next and ok
  You will get a ok message.
  Create a Directory /rhome/stationx where x is your station number.
  vi /etc/auto.master and write at the end of file /rhome/stationx /etc/auto.home --timeout=60
  vi /etc/auto.home and write
  * -rw,soft,intr 192.168.0.254:/rhome/stationx/&
  Note: please specify your station number in the place of x.
  Service autofs restart
  Login as the nisuser2001 or nisuser2002 on another terminal will be Success. According to question, RHCE domain is already configured. We have to make a client of RHCE domain and automatically mount the home directory on your system. To make a member of domain, we use the authconfig with option or system-config authentication command. There a are lots of authentication server i.e NIS, LDAB, SMB etc. NIS is a RPC related Services, no need to configure the DNS, we should specify the NIS server address.
  Here Automount feature is available. When user tried to login, home directory will automatically mount. The automount service used the /etc/auto.master file. On
  /etc/auto.master file we specified the mount point the configuration file for mount point.