Linux
File Permissions in Linux/Unix: How to Read/Write & Change?
Linux is a clone of UNIX, the multi-user operating system which can be accessed by many users...
Telnet is the standard TCP/IP protocol for virtual terminal service. It enables you to establish a connection to a remote system in such a manner that it appears as a local system. The full form of TELNET is Terminal Network.
Telnet protocol is mostly used by network admin to access and manage network devices remotely. It helps them access the device by telnetting to the IP address or hostname of a remote device. It allows users to access any application on a remote computer. This helps them to establish a connection to a remote system.
SSH is a network protocol that is widely used to access and manage a device remotely. The full form of SSH is Secure Shell is a major protocol to access the network devices and servers over the internet.
It helps you to log into another computer over a network and allows you to execute commands in a remote machine. You can move files from one machine to another. SSH protocol encrypts traffic in both directions, which helps you to prevent trafficking, sniffing, and password theft.
Here are some important Telnet commands:
Here are some important SSH commands:
Here are some major differences between Telnet and SSH:
Telnet | SSH |
---|---|
Telnet is the standard TCP/IP protocol for virtual terminal service. It enables you to establish a connection to a remote system in such a manner that it appears as a local system. | SSH or Secure Shell is a program to log into another computer over a network to execute commands in a remote machine. |
Telnet uses port 23, which was designed specifically for local area networks | SSH runs on port 22 by default, which you can change it. |
No privileges are provided for the user's authentication. | SSH is a more secure protocol, so it uses public-key encryption for authentication. |
Suitable for private networks | Suitable for public networks |
Telnet transfers the data in plain text. | The encrypted format should be used to send data and also uses a secure channel. |
Telnet is vulnerable to security attacks. | SSH helps you to overcome many security issues of Telnet. |
Required low bandwidth usage. | Required high bandwidth usage. |
Data sent using this protocol cannot be easily interpreted by the hackers. | Usernames and Passwords can be prone to malicious attacks. |
Used in Linux and Windows Operating system. | All popular Operating systems. |
Here are pros/benefits of Telnet
Here are pros/benefits of SSH protocol:
Here are the cons/drawback of the Telnet protocol: H
Here are the cons/drawback of using SSH:
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