Use the following commands, here I have taken example of my system and "arvind" as a working directory.
1: cd /home/arvind/
2: mkdir drupal6
3: cd drupal6
4: mkdir logs
6: tar xvzf drupal-6.22.tar.gz
7: mv drupal-6.22.tar.gz htdocs
8: cd logs
9: cat > error.log
10: cat > access.log
11: pwd
ex:/home/arvindaithal/drupal6/htdocs
12: Go to cd /etc/apache2/sites-available
Ex:arvindaithal@hoodota:/home$ cd /etc/apache2/sites-available/
arvindaithal@hoodota:/etc/apache2/sites-available$ ls
default defaultbk default-ssl
arvindaithal@hoodota:vim default
Make these changes.
<VirtualHost *:80>
ServerAdmin webmaster@localhost
DocumentRoot /home/arvindaithal/drupal6/htdocs/
<Directory />
Options FollowSymLinks
AllowOverride All
</Directory>
<Directory /home/arvindaithal/drupal6/htdocs/>
Options Indexes FollowSymLinks MultiViews
AllowOverride All
Order allow,deny
allow from all
</Directory>
ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
<Directory "/usr/lib/cgi-bin">
AllowOverride None
Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
Order allow,deny
Allow from all
</Directory>
ErrorLog ${APACHE_LOG_DIR}/error.log
# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
LogLevel warn
CustomLog ${APACHE_LOG_DIR}/access.log combined
Alias /doc/ "/usr/share/doc/"
<Directory "/usr/share/doc/">
Options Indexes MultiViews FollowSymLinks
AllowOverride None
Order deny,allow
Deny from all
Allow from 127.0.0.0/255.0.0.0 ::1/128
</Directory>
</VirtualHost>
Alias /test "/home/arvindaithal/drupal6/htdocs/"
Alias /testsite "/home/arvindaithal/drupal6/htdocs"
13: mkdir 127.0.0.1.test
14: cd ..
15: Change the rewrite base.
vim .htaccess
ex:arvindaithal@hoodota:~/drupal6/htdocs$ vim .htaccess
Add this code(test refers your site name).
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} ^/test/(.*)$
RewriteRule ^(.*)$ /test/index.php?q=$1 [L,QSA]
16: sudo /etc/init.d/apache2 restart
17: 127.0.0.1/test/
18: Make writable settings.php and files.
19: Give database name and password and save.,
20: Copy settings.php and files in 121.0.0.1.testsite/
21: Save.
If you need further information please refer this link http://drupal.org/node/43816.
