Download ApacheDS in /tmp folder and install with all the defaults.
$ cd /tmp
$ wget http://apache.cs.utah.edu//directory/apacheds/dist/2.0.0-M21/apacheds-2.0.0-M21-64bit.bin
$ chmod a+x apacheds-2.0.0-M21-64bit.bin
$ sudo ./apacheds-2.0.0-M21-64bit.bin
Do you agree to the above license terms? [yes or no]
yes
Unpacking the installer...
Extracting the installer...
Where do you want to install ApacheDS? [Default: /opt/apacheds-2.0.0-M21]
Where do you want to install ApacheDS instances? [Default: /var/lib/apacheds-2.0.0-M21]
What name do you want for the default instance? [Default: default]
Where do you want to install the startup script? [Default: /etc/init.d]
Which user do you want to run the server with (if not already existing, the specified user will be created)? [Default: apacheds]
Which group do you want to run the server with (if not already existing, the specified group will be created)? [Default: apacheds]
Installing...
id: apacheds: No such user
Done.
ApacheDS has been installed successfully.
By default the LDAP server listens on port 10389 (unencrypted or StartTLS) and 10636 (SSL).
user : uid=admin,ou=system
password : secret
$ sudo service apacheds-2.0.0-M21-default start
$ sudo chkconfig --add apacheds-2.0.0-M21-default
