Thanks sir,

I need you help on resetting the password on Ubunto FTP server. I've a home group in which i've multiple directories with multiple users. I want to reset the password of one single user. but when i use the command passwd it only change the root user passwd only. how i can reset the directory user password. please help.

passwd username

You have to add username as parameter of the passwd command to change password of a user other than root.

when ever i use this command i got reply unknown user.

can u take my machine on teamviewer to check it plz..

Yes we can arrange that. Did you read this document? Esp. section concerning Virtual Users Database.

https://help.ubuntu.com/community/vsftpd

ok sir plz take my machine online my teamviewer id is XXXXXXXXXX and password XXXXXXX.

yes ive read the information which you provide me the link. but i couldn't find out any help in that. u can plz add me on skype so that we can discuss further
my skype id is XXXXXXXXX

It's really really a bad idea to post personal information (id and password of any kind) in a public world-wide forum. For this reason I masked them out from your post. If you really trust some LQ users to let them access your machine, please contact them privately through the contact page of their LQ profile.

Once more, please remember that sharing knowledge and technical information about Linux or other *nix systems is welcome and it's what keeps LinuxQuestions alive. On the contrary, becoming a vehicle of potential malicious attacks through the disclosure of personal information is what may bring LinuxQuestions down. Hope this never ever happen.

1 members found this post helpful.

Ok sir but i dont know any person on your site who can help me...i ask u to do favour to me..please help me in this regard.