Advance Computer Network Assignment

Advance Computer Network

Table of Contents
INTRODUCTION...........................................................................................................................1
Concept of the Server Client and processes...................................................................................1
1.1 Client Server environment and its communication process..................................................1
1.2 Definition of Process ID (PID), Parent process ID (PPID) and Init......................................3
1.3 Comparing the operations of the parent and child Processes................................................3
Create a Client server Model in Lynax system................................................................................4
2.1 The Features of Linux Server configuration..........................................................................4
2.2 Evaluating the concept of UDP and TCP Systems................................................................6
2.3 Implementing the DNS server in Linux using UDP and TCP...............................................8
Secure Network for a corporate network.........................................................................................9
3.1 Evaluation of the Network Security Protocol........................................................................9
3.2 Critically analyse the purpose and Requirements of Network Security..............................10
3.3 Design of a Secured network...............................................................................................11
3.4 Configuring the Network security for a Secure network.....................................................11
CONCLUSION..............................................................................................................................12
REFERENCES..............................................................................................................................14

INTRODUCTION
Computer network can be defined as the connection of one or more computer systems in
order to share the data and information over the internet. Advanced computer network covers the
set of advanced topics in computer networks such as which covers the internet, social media,
cloud computing and various other high performance network centres. The study will be based
on the advanced and modern concepts in networking technologies. It will also help in developing
a clear understanding about the Client server relationship using various in a Lynax system which
can be established via UDP, TCP and Application layer.
In addition, this report will also helps in understanding features of the Lynax server
configurations. It will also explore about the User datagram Protocol which is used in
establishing Client server network architecture. It will also be able to develop the knowledge
about the Network Security protocols. Moreover, It helps in determining the purpose and
requirements of the secured network
Concept of the Server Client and processes
1.1 Client Server environment and its communication process
The Open System Interconnection Model (OSI model) helps in applying the concept
which derives the telecommunication facilities. It basically provides a model that assists an
application to communicate over the network. OSI model enables the data communication
between any two networked systems. It is composed of seven different types of layer r elated
functions (Besmer, 2018). In these each communication user or program is on a device in which
each layer is served by the layer above it and followed by the layer below it. Client Server model
allows the exchange of the data and information within the distributed environment so that it
allows the access of the server via multiple clients. There are Seven Layers in OSI model which
can be described below:
Application Model
This layer allows the intercommunication link between the user and server in the form of
interface. Also this provides the various different kinds of services such as mail facility, data
base management and accessibility of huge files to maintain the confidential data of the business
etc.
Presentation Model
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It emphasis on syntax and semantics that are used during the transmission of the data and
information. It enables the translation, encryption, compression and encoding of the existing
form of data into another form.
Session Layer
This layer allows in synchronization in order to keep the communication within 2
systems. This layer is used to establish a session between them (Colin, Nakechbandi and
Mathieu, 2019). It includes services such as control Dialog box and Synchronisation.
Transport Layer
This layer helps in receiving the independent packets of data and this layer provides the
services such as connection control, segmentation, flow control, etc.
Network Layer
This layer allows the logical addressing which helps in locating the data and information
which has been sent via multiple packets. It translates logical address into physical MAC
addresses so that it allows the communication and interaction of multiple devices with each
other.
Data Link Layer
It connects the Physical layer and makes it free from the errors via masking methods.
This layer mainly includes the services such as framing, error, etc.
Physical Layer
It transmits the data into the binary format over transmission channel therefore this layer
mainly deals with the characteristics between the device and the transmission media. It includes
various services such as bits representation, line configuration, transmission mode, data rates etc.
There is one more model that is TCP/IP which helps in establishing a client server
model. It mainly consists of the four layers which are similar to the layers of the OSI model
(DMello, Foo and Reid, 2018). However, it differs from various things such are described below:
 Internet protocol or Transmission control protocol is a client server model that is based
on the availability of the services via server according to the requests of the client.
 Transmission control Protocol is a standard rule of IT whereas OSI is a conceptual
protocol.
 TCP/IP consists of four layers which are common in OSI while the OSI is a seven layered
Model.
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