Telnet in linux -----------------------

While operating on a Linux running system, you may need to communicate with different gadgets. For this, there are a few primary utilities that you can employ.

These utilities can help you talk with:

networks,
different Linux structures
and faraway users
So, allow us to research them one by one.

SSH
Ping
FTP
Telnet


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SSH
SSH which stands for Secure Shell, It is used to connect to a far off computer securely. Compare to Telnet, SSH is comfy in which the consumer /server connection is authenticated the use of a digital certificates and passwords are encrypted. Hence it is widely used by gadget directors to control far off Linux servers.

The syntax to log right into a remote Linux device using SSH is

SSH username@ip-cope with or hostname
Linux/Unix SSH, Ping, FTP, Telnet Communication Commands

Once you are logged in, you may execute any instructions which you do on your terminal

Example:

ls
Linux/Unix SSH, Ping, FTP, Telnet Communication Commands

Example:

pwd
Linux/Unix SSH, Ping, FTP, Telnet Communication Commands

Ping
This application is usually used to check whether or not your connection to the server is healthy or no longer.This command is also used in -

Analyzing community and host connections
Tracking network overall performance and dealing with it
Testing hardware and software troubles
Linux/Unix SSH, Ping, FTP, Telnet Communication Commands

Command Syntax:-

ping hostname="" or=""
Example :


ping 172.Sixteen.170.1
Linux/Unix SSH, Ping, FTP, Telnet Communication Commands

ping google.Com
Linux/Unix SSH, Ping, FTP, Telnet Communication Commands

Here, A device has sent 64 bytes statistics packets to the IP Address (172.16.A hundred and seventy.1) or the Hostname(www.Google.Com). If even considered one of facts packets does now not return or is misplaced, it'd suggest an error inside the connection. Usually, net connectivity is checked the use of this method.

You may additionally Press Ctrl + c to go out from the ping loop.

FTP
FTP is document transfer protocol. It's the most preferred protocol for information transfer among computer systems.

You can use FTP to -

Logging in and setting up a reference to a far off host
Upload and download documents
Navigating via directories
Browsing contents of the directories
Linux/Unix SSH, Ping, FTP, Telnet Communication Commands

The syntax to set up an FTP connection to a faraway host is -

ftp hostname="" or=""
Once you enter this command, it will ask you for authentication through username and password.

Linux/Unix SSH, Ping, FTP, Telnet Communication Commands

Once a connection is hooked up, and you're logged in, you may use the following instructions to carry out unique moves.

Command Function
dir Display files inside the cutting-edge directory of a far flung computer
cd "dirname" change directory to "dirname" on a remote laptop
put document upload 'report' from local to remote laptop
get record Download 'record' from far flung to nearby laptop
quit Logout
Let us run some of the critical commands.


Linux/Unix SSH, Ping, FTP, Telnet Communication Commands

Telnet
Telnet helps to -

connect with a remote Linux laptop
run applications remotely and behavior administration
Linux/Unix SSH, Ping, FTP, Telnet Communication Commands

This software is just like the Remote Desktop characteristic located in Windows Machine.

The syntax for this utility is:

telnet hostname="" or=""
Example:
telnet localhost
For demonstration reason, we will connect with your laptop (localhost). The utility will ask your username and password.

Linux/Unix SSH, Ping, FTP, Telnet Communication Commands

Once authenticated, you could execute commands much like you have got accomplished to this point, the usage of the Terminal. The handiest distinction is, in case you are connected to a far flung host, the instructions may be achieved at the far flung gadget, and now not your nearby device.

You might also exit the telnet connection by using getting into the command 'logout'

Summary:
Communication between Linux/UNIX and different extraordinary computer systems, networks and far off customers is viable.
The ping command checks whether or not the reference to a hostname or IP-address is operating or no longer. Run 'ping IP cope with or Hostname' at the terminal
FTP is desired protocol for sending and receiving huge documents. You can establish an FTP connection to a far off host and then use instructions for importing, downloading files, checking file and surfing them
Telnet application lets you hook up with a far off Linux laptop and paintings on it