Networking Tools
Introduction
Networking is a huge topic. The networking is used to exchange data from one point to another point with support of physical devices, wires, and cables. Behind the networking there’s a huge theory. OSI Model is standarlised model, and it consists of 7 layers.
Here i’m going to share some command line networking tools. It’s just simple command to check for the networking.
Ping
When we heard ping, it reminds the game ping-pong. Actually Ping command is used to check the network connectivity to send and get replies back. It’s also used to check the remote system is online or not. the ping is a command that sends an ICMP Echo packet to a remote system. If the remote system is online and not blocked by the firewall, the remote system send back ICMP Echo Reply. Here is the ping command
ping MACHINE_IP or ping HOSTNAME
Let check the ping command how it works?
On the above screenshot i have used google.com as domain. And we get result of no. of packets transmitted,received, packet loss and time taken along with icmp seq number.
Traceroute
As name implies trace the route of the packets from source to reach the destination. This command used to find the number of routes to reach the host or destination system.
For Linux and macOS, the command to use is traceroute MACHINE_IP, and on MS Windows, it is tracert MACHINE_IP. traceroute used to discover the routers path from your system to the target system.
Here i’ve used dropbox.com as an example and we get the output of 30 lines, each line represent each route the each packets follow different route to reach the host system. It shows the time in milliseconds for each reply to reach our system.
Whois
As the name implies whois command used to get information about the domain. The information includes domain name, registrar, data validation, registration date, expires date, last updated, registration status & name of the servers. It is very easy to execute. Here’s a command
whois <domain>
Here i’ve used debian.com as an example and it fetches lot of information about the domain.
So will see you with another interesting blog.
Its your turn Just try it and see.
Thanks for Reading….