I have an account on Unix server. After typing login name and password i can go into my home directory.
If my home directory is "/home/abc" so now
$ pwd
$ /home/abc
$ cd /home
$ pwd
$ /home
$ ls ab*
abc:
abc:
shows the directory contents

abd:
abd: Permission denied

abe:
abe:
shows the directory contents

abg:
abg: Permission denied
$

That means for few home directories (including my directory) i have accessed to browse in that directories (/abc, /abe). But for few directory it doesn't allow me to enter (/abd, /abe).
Now the question is i also want to block my home directory so that no one can access it. And when other users fire the same command (ls ab*) then it does not show my home directory contents (msg: Permission denied).
How can i achieve it? Please help me.

You need to change the directory permissions of your home directory. See for details.

Note: If the nobody user can't see your home directory, then you won't be able to serve web pages in your user's public_html folder.

chmod -R 700 /home/yourdir

will work, but as rjlee says, may have consequences you don't like. . .

What is your default group? Is it 'abc' or 'users'?