How to Find the IP Address of a Computer?
Finding your public IP is extremely simple. Just type “what is my IP” on Google to see
your public IP address displayed in search results.
In order to find your private IP, just open the command prompt window (type cmd in the“Run” box) and enter the following command:
✓ ipconfig/all
This will display a long list of details about your computer’s network devices and their
configuration. To see your private IP address, just scroll down to find something as “IPv4 Address” which is nothing but your private IP.
* Hyper TextTransfer Protocol (HTTP)
The Hyper Text Transfer Protocol provides a standard for communication between web browser and the server. It is one of the most widely used protocol on the Internet for requesting documents such as web pages and images.
Example: http://www.example.com
* File Transfer Protocol (FTP)
The File Transfer Protocol provides a standard for transferring files between two
computers on the network. FTP is most widely used in carrying out upload
operations between a server and a workstation.
Example:ftp://www.example.com
* Simple Mail Transfer Protocol (SMTP)
The Simple Mail Transfer Protocol provides a standard for sending e-mails from one
server to another. Most e-mail systems that send mail over the Internet use SMTP to
exchange messages between the server.
* Telnet
Telnet is a network protocol that allows you to connect to remote hosts on the Internet or on a local network. It requires a telnet client software to implement the protocol using which the connection is established with the remote computer.
In most cases telnet requires you to have a username and a password to establish
connection with the remote host. Occasionally, some hosts also allow users to make connection as a guest or public.
After the connection is made, one can use text based commands to communicate with the remote host The syntax for using the telnet command is as follows:
telnet <hostname or IP> port
Example:telnet 127.0.0.1 25
* SSH(Secure Shell)
SSH is a protocol similar to telnet which also facilitates connection to remote hosts for
communication. However, SSH has an upper hand over telnet in terms of security. Telnet
was primarily designed to operate within the local network and hence does not take care of
security. On the other hand SSH manages to offer total security while connecting to
remote hosts on a remote network or Internet.
Akin to telnet SSH also uses a client software and requires a username and password to
establish connection with the remote host.
* Network port
A computer may be running several services on it like HTTP (web server), SMTP, FTP and so on. Each of these services are uniquely identified by a number called network port(or simply referred to as port). If a computer wants to avail a specific service from another computer it has to establish a connection to it on the exact port number where the intended service running.
For example, if a terminal is to request a web document from a remote server using HTTP,
it has to first establish a connection with the remote server on port 80 (HTTP service runs
on port 80) before placing the request.
In simple words, port numbers can be compared to door numbers where each door grants
access to a specific service on a computer. The following table shows a list of popular
services and their default port numbers:
your public IP address displayed in search results.
✓ ipconfig/all
configuration. To see your private IP address, just scroll down to find something as “IPv4 Address” which is nothing but your private IP.
The Hyper Text Transfer Protocol provides a standard for communication between web browser and the server. It is one of the most widely used protocol on the Internet for requesting documents such as web pages and images.
Example: http://www.example.com
* File Transfer Protocol (FTP)
The File Transfer Protocol provides a standard for transferring files between two
computers on the network. FTP is most widely used in carrying out upload
operations between a server and a workstation.
Example:ftp://www.example.com
* Simple Mail Transfer Protocol (SMTP)
The Simple Mail Transfer Protocol provides a standard for sending e-mails from one
server to another. Most e-mail systems that send mail over the Internet use SMTP to
exchange messages between the server.
* Telnet
Telnet is a network protocol that allows you to connect to remote hosts on the Internet or on a local network. It requires a telnet client software to implement the protocol using which the connection is established with the remote computer.
In most cases telnet requires you to have a username and a password to establish
connection with the remote host. Occasionally, some hosts also allow users to make connection as a guest or public.
After the connection is made, one can use text based commands to communicate with the remote host The syntax for using the telnet command is as follows:
telnet <hostname or IP> port
Example:telnet 127.0.0.1 25
* SSH(Secure Shell)
SSH is a protocol similar to telnet which also facilitates connection to remote hosts for
communication. However, SSH has an upper hand over telnet in terms of security. Telnet
was primarily designed to operate within the local network and hence does not take care of
security. On the other hand SSH manages to offer total security while connecting to
remote hosts on a remote network or Internet.
Akin to telnet SSH also uses a client software and requires a username and password to
establish connection with the remote host.
* Network port
A computer may be running several services on it like HTTP (web server), SMTP, FTP and so on. Each of these services are uniquely identified by a number called network port(or simply referred to as port). If a computer wants to avail a specific service from another computer it has to establish a connection to it on the exact port number where the intended service running.
For example, if a terminal is to request a web document from a remote server using HTTP,
it has to first establish a connection with the remote server on port 80 (HTTP service runs
on port 80) before placing the request.
In simple words, port numbers can be compared to door numbers where each door grants
access to a specific service on a computer. The following table shows a list of popular
services and their default port numbers:
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