Sponsored Content
Top Forums Shell Programming and Scripting Detecting data loss during FTP Post 37326 by Perderabo on Tuesday 17th of June 2003 07:25:08 AM
Old 06-17-2003
FTP is based on TCP which guarantees reliable data transmission. If a TCP packet is garbled or fails to arrive, the TCP layer will not acknowledge it. That causes the sender to retransmit. The FTP program has no way to know this happens.

If the TCP layer cannot transmit the data, the file will not be transferred. So all you need to do is see if the file was transferred.
 

6 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

data corruption with ftp transfer

Hi again, first of all thanks for you help on my last problem, the problem is solved now. But I have many problem :) This time, I transfered a big file, ~3,5 GByte, with ftp from a Sun machine to a linux box, RedHat 7.3. But the file recieved on the Linux Box is corrupt, with smaller files... (12 Replies)
Discussion started by: malcom
12 Replies

2. UNIX for Advanced & Expert Users

Response time under packet loss

I am experiencing a problem where under a dial condition I am experiencing packet loss, which is failrly normal, but the response to the packet loss is taking bewteen 6 and 10 seconds. Could someone please advise what the industry standard is on the response time under a packet loss senario. (1 Reply)
Discussion started by: shane
1 Replies

3. Shell Programming and Scripting

Detecting a successfull FTP connection

I have a question. My company has to send a file to another company. The cron script currently just sends the file. However, every now and then the other companies ftp server is down. I wanted to alter my script to detect if the server is up before I attempt to send the file. My idea follows #... (2 Replies)
Discussion started by: beilstwh
2 Replies

4. IP Networking

packet loss problem

I have 4 network ports on our T5240 sun server. all but 1 gives packet losses (nxge1) nxge0 gives on average 50% packet loss, very bad. nxge2 gives on average 1-2% packet loss. nxge3 gives on average 20% packet loss. Is there a tool or something to help me find the problem? (11 Replies)
Discussion started by: photon
11 Replies

5. Shell Programming and Scripting

Download data from ftp.

Dear all, I am beginner to shell scripting. I have to download more than 1k files from ftp site. link is below ftp://ftp.ncbi.nih.gov/genomes/Bacteria/ Earlier i was using wget url, for download but the problem is some times folder names get changed, i don't know how to move in directories... (4 Replies)
Discussion started by: admax
4 Replies

6. Solaris

Packet loss on ce interface.

Hi, I am using the ce interface on my Solaris 9 server and there is significant packet loss when transmitting large packets. Does anyone have a fix for this? ----10.1.0.0 PING Statistics---- 51 packets transmitted, 42 packets received, 17% packet loss round-trip (ms) min/avg/max =... (12 Replies)
Discussion started by: sparcman
12 Replies
ftpconfig(1M)						  System Administration Commands					     ftpconfig(1M)

NAME
ftpconfig - set up anonymous FTP SYNOPSIS
ftpconfig [ftpdir] ftpconfig -d ftpdir DESCRIPTION
The ftpconfig script is executed by the super user to set up anonymous FTP. Anonymous FTP allows users to remotely log on to the FTP server by specifying the user name ftp or anonymous and the user's email address as password. The anonymous users are logged on to the FTP Server and given access to a restricted file area with its own file system root. See chroot(2). The FTP area has its own minimal system files. This command will copy and set up all the components needed to operate an anonymous FTP server, including creating the ftp user account, creating device nodes, copying /usr/lib files, and copying timezone data. The passwd and group files set up have been stripped down to prevent malicious users from finding login names on the server. The anonymous file area will be placed under ftpdir. If the ftp user account already exists, then the current FTP area is used, and the system files in it are updated. All other files are left untouched. This command should be run to update the anonymous FTP area's configuration whenever a system patch is installed, or the system is upgraded. OPTIONS
-d Create a new or update an existing ftpdir without creating or updating the ftp user account. Use this option when creating guest FTP user accounts. OPERANDS
The following operands are supported: ftpdir The absolute pathname of the directory under which the anonymous FTP area is set up. EXIT STATUS
The following exit values are returned: 0 Successful completion 1 Improper usage of the command 2 Command failed ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWftpu | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
ftpaddhost(1M), in.ftpd(1M), useradd(1M), chroot(2), attributes(5) SunOS 5.10 1 May 2003 ftpconfig(1M)
All times are GMT -4. The time now is 05:42 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy