QuontraSolutions is a Global Interactive Online IT Training Portal started by Experts with an aspire to provide a Job Oriented IT Online Training on major modules. We provide Hands on online Linux Training with real time scenarios . QuontraSolutions online training could be described in one word by its students, Linux online training we provide with a real time support by our Industry IT experts. We are passionate about how to improve the IT skills by helping you to develop the skills you need in order to accomplish your objective. Our Special Features: * Motivated Instructors * Hands on trainers * Material will be provided * Resume guidance * Placement Support One free demo will be given before sign up for Online Training Web:www.quontrasolutions.co.uk Email : info@quontrasolutions.co.uk Call us: 20-3734-1498

1. Linux Administration
QuontraSolutions
Online Training with Placement support
Call us: 20-3734-1498
Email: info@quontrasolutions.co.uk
Website: www.quontrasolutions.co.uk

2. Basic about Linux
•
What is Linux ?
-Linux is an open source, freely distributable Unix like
operating system that uses Linux kernel .
•
What is Kernel ?
- Kernel is the program acting
as chief of operations.
•
Is Linux Free?
-Yes, Linux is one of the most prominent examples of free and open

3. Installation of Linux
Methods of installing Linux:
-FTP:-This is one of the earliest methods for performing network installations.
-HTTP:-The installation tree is served from a web server.
-NFS:-The distribution tree is shared/exported on an NFS server.
-SMB:- This method is relatively new, and not all distributions support it. The
installation tree can be shared on a Samba server or shared from a Windows
box.
-From the Optical Media

4. •
Username Field :
• Password Field :
• User-ID Field (UID):
• Group-ID Field (GID):
• GECOS:
• Directory:
• Shell:
Managing User Account

5. •
Under Linux, every file and program must be owned by a user.
Each user has a unique identifier called a user ID (UID).
•
Each user must also belong to at least one group, a collection of
users established by the system administrator.
•
Users may belong to multiple groups. Like users, groups also have
unique identifiers, called group IDs (GIDs).
•
The /etc/passwd file stores the user’s login, encrypted password
entry, UID, default GID, name (sometimes called GECOS), home
directory, and login shell.
Managing User Account

6. A file system is a data structure which interprets the physical sector of a disc into logical
directory structure. The logical structure will help computers and users +to trace files. The file
system registers the location of the files and directories on the disc .
File System of Linux

7. Network Configuration

The ifconfig program is primarily responsible for setting up
network interface cards (NICs).

All of its operations can only be performed through
command-line options, as its native format has no menus or
graphical interface.

Multiple IP address can be assigned for single NIC.

Network configuration file stores in /etc/sysconfig/network-
scripts/ifcfg

Global Parameter configuration file stores in
/etc/sysconfig/network.

8. Network Configuration File
•
DEVICE=eth1
•
BOOTPROTO=none
•
HWADDR=00:12:79:9E:DC:0B
•
ONBOOT=yes
•
TYPE=Ethernet
•
DHCP_HOSTNAME=rcciit.com
•
USERCTL=no
•
PEERDNS=yes
•
IPV6INIT=no
•
IPADDR=192.168.250.24
•
NETMASK=255.255.255.0

9. DHCP
•
DHCP provides a method for hosts on a network to request,
and be granted, configuration information including the
addresses of router and nameservers.
•
DHCP forwarding agents allow clients to receive addresses
from a server which is not located on the same network
segment.
•
IP addresses are either dynamically assigned from a range or
pool of addresses or statically assigned by MAC address.

10. Service Profile: DHCP
•
Packages: dhcp
•
Daemons: dhcpd
•
Script: dhcpd
•
Ports: 67(bootps), 68(bootpc)
•
Configuration: /etc/dhcpd.conf
/var/lib/dhcp/dhcpd.leases

11. FTP
•
FTP configuration file stores in /etc/vsftpd/vsftpd.conf
•
Default User(Anonymous) can access only /var/ftpG
•
Generally used to transfer single with proper authentication
from previously configured sender’s folder to reciver’s folder

12. FTP Configuration File
•
anonymous_enable=YES
•
anon_upload_enable=YES
•
/etc/vsftpd/ftpusers ==> denied access
•
/etc/vsftpd/user_list ==> userlist_enable=YES

13. Telnet
•
Telnet is a network protocol used on the Internet or local area
networks to provide a bidirectional interactive text-oriented
communications facility using a virtual terminal connection.
User data is interspersed in-band with Telnet control
information in an 8-bit byte oriented data connection over
the Transmission Control Protocol (TCP).
•
Telnet can not restrict a user after connection to the host has
made, (i.e a user telnetting to a remote host can totally access
the host computer if he logged in as a root)

14. Network File System/Service
•
The Network File System (NFS) was developed to allow
machines to mount a disk partition on a remote machine as if
it were a local disk. It allows for fast, seamless sharing of files
across a network.
•
Exported directories are defined in /etc/exports
•
Each entry specifies the hosts to which the filesystem is
exported plus associated permission and options

15. THANK YOU !!

16. 
Linux Administration

Basic about Linux

Installation of Linux

Network Configuration

Network Configuration File

DHCP

Service Profile: DHCP

FTP

FTP Configuration File