install WordPress on ISPConfig 3

i used server1.example for isp setup but i guess somewhere i used just example.com
Let me just recollect.
I used this tut
https://www.howtoforge.com/perfect-server-debian-squeeze-with-bind-and-dovecot-ispconfig-3-p4

 

This step i used example.com instead of serv1.example.com

10 Install Postfix, Dovecot, Saslauthd, MySQL, phpMyAdmin, rkhunter, binutils
We can install Postfix, Dovecot, Saslauthd, MySQL, phpMyAdmin, rkhunter, and binutils with a single command:

apt-get install postfix postfix-mysql postfix-doc mysql-client mysql-server openssl getmail4 rkhunter binutils dovecot-imapd dovecot-pop3d sudo
You will be asked the following questions:
General type of mail configuration: <-- Internet Site
System mail name: <-- server1.example.com
New password for the MySQL "root" user: <-- yourrootsqlpassword
Repeat password for the MySQL "root" user: <-- yourrootsqlpassword

 

Some stage on this page
https://www.howtoforge.com/perfect-server-debian-squeeze-with-bind-and-dovecot-ispconfig-3-p4
i used example.com instead of srev1.example.com

 

yup i m on low memory and should i use 8? are there securities issues in 6?
i also messed up at mounting
actually this is my first install ever and just since past few days i have put my hands on any linux in life
here is the output of sites available
total 36
drwxr-xr-x 2 root root 4096 Dec 17 08:25 .
drwxr-xr-x 7 root root 4096 Dec 16 14:16 ..
-rw-r--r-- 1 root root 1074 Dec 17 03:46 apps.vhost
-rw-r--r-- 1 root root 692 Oct 16 2014 default
-rw-r--r-- 1 root root 7251 Oct 16 2014 default-ssl
-rw-r--r-- 1 root root 1848 Dec 16 15:39 ispconfig.conf
-rw-r--r-- 1 root root 2103 Dec 16 15:41 ispconfig.vhost
-rw-r--r-- 1 root root 3423 Dec 17 08:25 example.com.vhost
Sites Enabled
total 8
drwxr-xr-x 2 root root 4096 Dec 17 04:34 .
drwxr-xr-x 7 root root 4096 Dec 16 14:16 ..
lrwxrwxrwx 1 root root 39 Dec 16 15:39 000-apps.vhost -> /etc/apache2/sites-available/apps.vhost
lrwxrwxrwx 1 root root 26 Dec 16 13:55 000-default -> ../sites-available/default
lrwxrwxrwx 1 root root 43 Dec 16 15:39 000-ispconfig.conf -> /etc/apache2/sites-available/ispconfig.conf
lrwxrwxrwx 1 root root 44 Dec 16 15:41 000-ispconfig.vhost -> /etc/apache2/sites-available/ispconfig.vhost
lrwxrwxrwx 1 root root 51 Dec 17 04:34 100-example.com.vhost -> /etc/apache2/sites-available/example.com.vhost

 

Once i am through this with your lovely help please give me a banner of your choice or your profile to display on example.com for few months.

 

/etc/postfix/main.cf had serv1.example.com
but
/etc/mailname had example.com
i changed it to serv1.example.com

 

This is my vi /etc/fstab

proc /proc proc defaults 0 0
none /dev/pts devpts rw,remount-ro,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0 0 1

/var/log/ispconfig/httpd/example.com /var/www/clients/client0/web1/log none bind,nobootwait 0 0

 

that i wont know because mine is just instance of vps.
ITs not working the problem is still the same
i think i will re install with deb 8