EXPERIMENT NO 2

-


Aim :
Study of Linux Networking Commands
Theory:
  1. ifconfig
ifconfig is used to configure the system's kernel-resident network interfaces. It is used at boot time to set up interfaces as necessary. After that, it is usually only needed when debugging or when system tuning is needed. If no arguments are given, ifconfig displays the status of the system's active interfaces. If a single interface argument is given, it displays the status of the given interface only.
Eg: ifconfig
Running ifconfig with no options will display the configuration of all active interfaces.


Figure 1: ifconfig Command


  1. ping
ping is a simple way to send network data to, and receive network data from, another computer on a network. It is frequently used to test, at the most basic level, whether another system is reachable over a network, and if so, how much time it takes for that data to be exchanged.
Eg: ping google.com
Ping the host google.com to see if it is alive.


Figure 2: ping Command


  1. tracepath
www.vesit.edu : It traces the complete path to a networking host discovering the MTU along the path.
It uses UDP port or some random port. It is similar to traceroute, only it does not require superuser privileges and has no fancy options.
Syntax: tracepath destination [port]


Figure 3: tracepath Command


  1. traceroute
www.vesit.edu: traceroute prints the route that packets take to a network host. It is used to find network path from machine to server.
The server name above is destination name or IP address.
Syntax: traceroute <server name>




Figure 4: traceroute Command


  1. host
www.google.com host is a simple utility for performing DNS lookups.
It is normally used to convert names to IP addresses and vice versa. When no arguments or options are given, host prints a short summary of its command line arguments and options.


Figure 5: host Command


  1. Service Network Restart
Service runs a System V init script or upstart job in as predictable an environment as possible, removing most environment variables and with current working directory set to "/.


Figure 6: Service Network Restart Command


  1. finger
Finger looks up and displays information about system users.
Syntax: finger [-lmsp] [user...] [userhost...]
Eg: finger –p ch
Display information about the user ch


Figure 7: finger Command


  1. netstat
The netstat command is used to print network connections, routing tables, interfacestatistics, masquerade connections, and multicast memberships. It is used for finding problems in the network and to determine the amount of traffic on the network as a performance measurement.
Eg: netstat –an
Shows information about all active connections to the server, including the source and destination IP addresses and ports, if you have proper permissions.



Figure 8: netstat Command







Comments

Post a Comment

Popular posts from this blog

DV and LS Routing Algorithm Implementation in ns2

-
#Create a simulator object set ns [new Simulator] #Tell the simulator to use dynamic routing $ns rtproto DV/LS #Open the nam trace file set nf [open out.nam w] $ns namtrace-all $nf #Define a 'finish' procedure proc finish {} {         global ns nf         $ns flush-trace #Close the trace file         close $nf #Execute nam on the trace file         exec nam out.nam &         exit 0 } #Create seven nodes for {set i 0} {$i < 7} {incr i} {         set n($i) [$ns node] } #Create links between the nodes for {set i 0} {$i < 7} {incr i} {         $ns duplex-link $n($i) $n([expr ($i+1)%7]) 1Mb 10ms DropTail } #Create a UDP agent and attach it to node n(0) set udp0 [new Agent/UDP] $ns attach-agent $n(0) $udp0 # Create a CBR traffic source and attach it to udp0 set cbr0 [new Application/Traffic/CBR] $cbr0 se...
Read more

Exp : 1 & 2 : Working with HTML and CSS

-
Image
Code for Reference Overview of HTML and CSS Tags, Elements, Attributes, and Content, Displaying Text in HTML, Displaying Images and Linking Documents in HTML Index.html 20480 RECORDING PRACTICE Welcome to 20480 PRACTICE HTML PRACTICE Elements consist of content bookended by a start tag and an end tag. An Introduction to HTML In this module, we look at the history of HTML and CSS. In the Beginning WorldWideWeb was created by Sir Tim Berners-Lee at CERN. Notepad Textmate Notepad Textmate Visual Studio Visual Studio Notepad Textmate Notepad Textmate Visual Studio Visual Studio The dl, dd, and dt elements These three elements are used to create a description list: Coffee Black hot drink Milk White cold drink go to visual code website-separate page go to visual code website-self page To...
Read more

Data Communication Basics

-
DATA COMMUNICATIONS : When we communicate, we are sharing information. This sharing can be local or remote. Between individuals, local communication usually occurs face to face, while remote communication takes place over distance. The term telecommunication, which includes telephony, telegraphy, and television, means communication at a distance (tele is Greek for "far"). The word data refers to information presented in whatever form is agreed upon by the parties creating and using the data. Data communications are the exchange of data between two devices via some form of transmission medium such as a wire cable. For data communications to occur, the communicating devices must be part of a communication system made up of a combination of hardware (physical equipment) and software (programs). The effectiveness of a data communications system depends on four fundamental characteristics: delivery, accuracy, timeliness, and jitter. I. Delivery. The system must deliver data to t...
Read more