RedHat Redhat Certified Technician on Redhat Enterprise Linux 5 (Labs) : RH202

Install the Redhat Linux RHEL 5 through NFS. Where your Server is server1.example.com having IP 192.168.0.254 and shared /var/ftp/pub. The size of the partitions are listed below: / -> 1048 /home -> 1028 /boot -> 512 /var -> 1028 /usr -> 2048 Swap -> 1.5 of RAM Size /data configure the RAID Level 0 of remaining all free space. After completing the installation through NFS solve the following QUESTIONs. There are two networks 192.168.0.0/24 and 192.168.1.0/24. As well as there are two domains example.com on 192.168.0.0/24 network and cracker.org on 192.168.1.0/24 network. Your system is based on example.com domain.

• A. Insert the CD on CD-ROM and start the system.
  In Boot: Prompt type linux askmethod
  It will display the language, keyboard selection.
  It will ask you for the installation method.
  Select the NFS Image from the list
  It will ask the IP Address, Net mask, Gateway and Name Server. Select Use Dynamic IP Configuration: because DHCP Server will be configured in your exam lab.
  It will ask for the NFS Server Name and Redhat Enterprise Linux Directory. Specify the NFS Server: 192.168.0.254 Directory: /var/ftp/pub
  After Connecting to the NFS Server Installation start in GUI. Go up to the partition screen by selecting the different Options.
  Create the partition According to the QUESTION because Size and what-what partition should you create at installation time is specified in your QUESTION
  Create the two RAID partitions having equal size of remaining all free space.
  Click on RAID button
  Type mount point /data
  Select RAID Level 0
  Click on ok
  Then select the MBR Options, time zone and go upto package selections. It is another Most Important Time of installation. Due to the time limit, you should care about the installation packages. At Exam time you these packages are enough. X-Window System GNOME Desktop (these two packages are generally not required) Administration Tools. System Tools Windows File Server
  FTP Servers Mail Servers Web Servers Network Servers Editors Text Based Internet Server Configuration Tools Printing Supports When installation will complete, your system will reboot. Jump for another QUESTION.
• B. Insert the CD on CD-ROM and start the system.
  In Boot: Prompt type linux askmethod
  It will display the language, keyboard selection.
  It will ask you for the installation method.
  Select the NFS Image from the list
  It will ask the IP Address, Net mask, Gateway and Name Server. Select Use Dynamic IP Configuration: because DHCP Server will be configured in your exam lab.
  It will ask for the NFS Server Name and Redhat Enterprise Linux Directory. Specify the NFS Server: 192.168.0.254 Directory: /var/ftp/pub
  After Connecting to the NFS Server Installation start in GUI. Go up to the partition screen by selecting the different Options.
  Click on RAID button
  Type mount point /data
  Select RAID Level 0
  Click on ok
  Then select the MBR Options, time zone and go upto package selections. It is another Most Important Time of installation. Due to the time limit, you should care about the installation packages. At Exam time you these packages are enough. X-Window System GNOME Desktop (these two packages are generally not required) Administration Tools. System Tools Windows File Server
  FTP Servers Mail Servers Web Servers Network Servers Editors Text Based Internet Server Configuration Tools Printing Supports When installation will complete, your system will reboot. Jump for another QUESTION.

Deny to all users except root to run cron schedule.

• A. 1. vi /etc/cron.allow root or
  vi /etc/cron.deny
  Write all user name to deny. /etc/cron.allow, /etc/cron.deny file is used to control users to allow or deny. Another way to deny to users is /etc/cron.deny write all user name on single line.
• B. 1. vi /etc/cron.allow root or
  vi /etc/cron.deny
  Write all user name to deny. /etc/cron.allow, /etc/cron.deny file is used to control users to allow or deny. If /etc/cron.allow file is created only that users are allowed to run cron schedule. Another way to deny to users is /etc/cron.deny write all user name on single line.

Create the partition having 100MB size and mount it on /mnt/neo

• A. Use fdisk /dev/hda To create new partition.
  Type n For New partitions
  It will ask for Logical or Primary Partitions. Press l for logical.
  Use mkfs -t ext3 /dev/hda? ->Where ? is your partition number
  Or mke2fs -j /dev/hda? To create ext3 filesystem.
  mkdir /mnt/neo
  vi /etc/fstab
  Write:
  /dev/hda? /mnt/neo ext3 defaults 1 2
  Verify by mounting on current Sessions also:
  mount /dev/hda? /mnt/neo
• B. Use fdisk /dev/hda To create new partition.
  Type n For New partitions
  It will ask for Logical or Primary Partitions. Press l for logical.
  It will ask for the Starting Cylinder: Use the Default by pressing Enter Key.
  Type the Size: +100M You can Specify either Last cylinder of Size here.
  Press P to verify the partitions lists and remember the partitions name.
  Press w to write on partitions table.
  Either Reboot or use partprobe command.
  Use mkfs -t ext3 /dev/hda? ->Where ? is your partition number
  Or mke2fs -j /dev/hda? To create ext3 filesystem.
  mkdir /mnt/neo
  vi /etc/fstab
  Write:
  /dev/hda? /mnt/neo ext3 defaults 1 2
  Verify by mounting on current Sessions also:
  mount /dev/hda? /mnt/neo
• C. Use fdisk /dev/hda To create new partition.
  Type n For New partitions
  It will ask for Logical or Primary Partitions. Press l for logical.
  It will ask for the Starting Cylinder: Use the Default by pressing Enter Key.
  Type the Size: +100M You can Specify either Last cylinder of Size here.
  Press P to verify the partitions lists and remember the partitions name.
  mkdir /mnt/neo
  vi /etc/fstab
  Write:
  /dev/hda? /mnt/neo ext3 defaults 1 2
  Verify by mounting on current Sessions also:
  mount /dev/hda? /mnt/neo

Set the Hostname station?.example.com where ? is your Host IP Address.

• A. 1. hostname station?.example.com This will set the host name only for current session. To set hostname permanently.
  vi /etc/sysconfig/network HOSTNAME=station?.example.com
  service network restart
• B. 1. hostname station?.example.com This will set the host name only for current session. To set hostname permanently.
  vi /etc/sysconfig/network.

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

• A. chmod g+s /storage
  Verify using: ls -ld /storage 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
• B. chmod g+s /storage
  Verify using: ls -ld /storage Permission should be like: drwxrws--- 2 root sysusers 4096 Mar 16 19:08 /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.