I have followed following steps to implement, ftp upload by test1 user.
1. Add group ftp-users
# /usr/sbin/groupadd ftp-users
2. User test1 has been added to the group of ftp-users with /home/ftp-docs as home directory
# /usr/sbin/usermod -g ftp-users -d /home/ftp-docs test1
3. Ownership and permission of /home/ftp-docs has been changed to provide read/write access to user test1 and group ftp-users
# chown test1.ftp-users /home/ftp-docs
# chmod 770 /home/ftp-docs
But My intention is for the user who login with test1 user privileges, he should not be able to browse any other direcoties say /, /var /etc etc.
Also he should not be able to change to any other directory.
How can I accomplish this ?