iperf3 - Meaning of Retr column in TCP measurement In iperf3 the column Retr stands for Retransmitted TCP packets and indicates the number of TCP packets that had to be sent again (=retransmitted) The lower the value in Retr the better
RETR command in FTP, how does the server send a file to the client? 0 I'm implementing a very simple FTP server program that is able to retrieve and store text files my question is, when a ftp client request say a file with the following "RETR test txt" how does the server send this file? Does it open that text file copy the contents into a buffer and simply send it or is there more to it?
Use RETR FTP command with Apache Commons FTPClient Before sending RETR, you need to send PASV, EPSV, PORT or EPRT and parse its response Typically you would use PASV, for which there's FTP pasv method The next would to be open the data connection, based on the response to the PASV (and only then you send RETR) But implementing the data connection is lot of work And the FTPClient implementation of the data connection is hidden in a
Getting an error running FTP. retrbinary to retrieve a file You'll need to complete a few actions and gain 15 reputation points before being able to upvote Upvoting indicates when questions and answers are useful What's reputation and how do I get it? Instead, you can save this post to reference later
difference between CV_RETR_LIST,CV_RETR_TREE,CV_RETR_EXTERNAL? CV_RETR_EXTERNAL gives "outer" contours, so if you have (say) one contour enclosing another (like concentric circles), only the outermost is given CV_RETR_LIST gives all the contours and doesn't even bother calculating the hierarchy -- good if you only want the contours and don't care whether one is nested inside another