This document contains 25 questions related to various Linux system administration tasks. The questions cover topics such as modifying permissions using ACLs, configuring DNS and static IP settings, partitioning and mounting disks, expanding logical volumes, changing runlevels, installing packages from remote sources, backup and restoration, user and group management, cron jobs, SSH/Telnet configuration, disk usage monitoring, and RAID configuration.

1. QUESTION 1
Eric user should able to write on (/var/www/html) directory. Use ACLs to set or modify the
permissions for this user.
Describe the step to do this task.
QUESTION 2
On you linux machine In what file you would configure DNS server details and how?
DNS server IP address is 172.24.254.254
QUESTION 3
Create the partition having 100MB size with ext2file system and mount it on /mnt/neo
Describe the steps to achieve the above task.
QUESTION 4
One Logical Volume named lv1 is created under vg0. The Initial Size of that Logical
Volume is 100MB. Now you required the size 500MB. Make successfully the size of
that Logical Volume 500M without losing any data. As well as size should be
increased online.
QUESTION 5
You are a new System Administrator and from now you are going to handle the
system and your main task is Network monitoring, Backup and Restore. But you
don't know the root password. Change the root password to your CentOS computer and make
system boot in to Runlevel 3. On every reboot your system should be booting in to Runlevel 3
QUESTION 6
There are more then 400 Computers in your Office. You are appointed as a System
Administrator. Your job is to reload all 400 machines with CentOS 5.6 .
Describe the steps for semi automatic installation.
QUESTION 7
Your system is set to obtain DHCP addresses form a DHCP server. Please configure a static IP
address for your system instead of DHCP address.
Describe the steps to configure static Ip address for your computer.
IPADDRESS =192.168.0.122 SUBNETMASK=255.255.255.0, GATEWAY=192.168.0.254
QUESTION 8
You are system is unable to go online . It has static IP ADDRESS. Please describe the steps to
troubleshoot network connectivity on your system. What files and services do have to inspect?
QUESTION 9
One of your users is requesting you to set his computer name as CentOS1.calhoun.edu.
QUESTION 10
How do you find out if zsh is available on your system or not . What is the command to see all
available shells?
QUESTION 11

2. One of your users started a System and a message:
INIT Entering runlevel 9
INIT: no more processes left in this runlevel
So how will you correct his System booting problem?
QUESTION 12
Create the group named sysusers.
QUESTION 13
Boot into runlevel 3 .Create the user named jeff, marion, harold in batch
Also create a account (Besbron) with home directory /home/kin, default shell as /bin/csh
and with comment “BesBron James”.
Please describe the commands.
QUESTION 14
Create the directory /storage and group owner should be the sysusers group.
QUESTION 15
Install the Cron Schedule for jeff user to display "Hello" on daily 5:30.
QUESTION 16
What happens when you use "cat foo > foo"? What about "sort -o foo < foo"
QUESTION 17
Add a user named Tim and make primarily belongs to training group. As well
account should expire on 30 days from today.
QUESTION 18
One New Kernel is released named kernel-hugemem-2.8.0.6. Kernel is available on
ftp://server1.example.com under pub directory for anonymous. You need kernel version 2.6 to
upgrade to this new kernel. How do you find out what kernel version you have on your system.
QUESTION 19
One Package named glibc is available on ftp://server1.example.com under pub directory.
Install the package from ftp server.
QUESTION 20
You are administrator of Calhoun's network. First time you are going to take the full
backup of all user's home directory on a system (192.168.1.1).
We prefer you store the full backup of home folders on 192.168.1.2 /users-data.
Make sure you retain all the user permissions on backup folders.
Describe the steps to achieve this task.
QUESTION 21
There are three Disk Partitions /dev/hda8, /dev/hda9, /dev/hda10 having size 100MB
of each partition. Create a Logical Volume named testvolume1 and testvolume2
having a size 250MB. Mount each Logical Volume on lvmtest1, lvmtest2 directory.
QUESTION 22

3. Create the user named 'bama' and deny to interactive login.
QUESTION 23
You are working as a Network Engineer. For security reasons ,you want to
turn off SSH and enable TELNET for all the users
Describe the steps and make sure all user can only use TELNET
QUESTION 24
At Calhound.edu some of you users are worried about the remaining disk space on their system
Please do inform users about their disk usage details.
QUESTION 25
One of your users is requesting for additional disk space on his system. The user is running
CentOS 5.6 with /boot=100MB, 4GB of SWAP and /=120GB.
The user recently purchased two 1TB disks and user is requesting you to create a RAID 0 and
mount it on /DATA , this would give the user 2TB of additional disk space.
Describe the steps to compete this task.