Squid Server Interview Questions And Answers for Linux admin

This summary is not available. Please click here to view the post.

Differences Between FTP and TFTP

FTP, or File Transfer Protocol, and TFTP, or Trivial File Transfer Protocol, are both methods of file transfer over a network. That is where the similarities end, however. There are some very distinct differences that distinguish FTP from TFTP servers. Read on for a list of key differences.

Security

FTP is an encrypted file transfer system. This means that security measures such as password protection and encryption protect data as it is transferred. TFTP is not an encrypted file transfer system. For this reason, FTP is typically used by businesses.

Memory

When data is transferred between servers, a portion of the computer and server's memories are preoccupied during the transfer. Larger files and encrypted data take up more memory. TFTP is intended for the transfer of smaller files and does not require authentication. TFTP, therefore, requires less memory on a computer and server than FTP does.

Authentication

FTP requires authentication of a user's authority to upload and download files prior to releasing data resting on the server. Once the user is authenticated, the amount of data to which the user can have access is determined and is released simultaneously by FTP. TFTP, on the other hand, actually transfers data from the server directly to computers by breaking it down into manageable pieces that are then transferred sequentially from first to last between the server and a computer. If any piece fails to complete properly, the rest of the information is not sent.

Port Numbers

FTP utilizes TCP port connections. What this means is that it uses two different port numbers to establish two simultaneous connections. One port establishes authentication and controls the release of data based on the credentials of the user. The other port transfers data. TFTP utilizes UDP ports which make only a single connection between the server and user.

FTP is a more secure method of file sharing that makes it a more secure choice for businesses. TFTP is a better solution for those who only need to transfer a small amount of data without the need to protect it. When a request is made to access an FTP server, a session with a beginning and end is initiated. Accessing a TFTP server merely initiates the transfer of shared data.

port no for FTP

20 for Data and 21 for Control

port no for TFTP

69