Prepare a script to install additional packages to the base command line install. We might start with four applications of tasksel.

tasksel --task-packages dns-server
tasksel --task-packages lamp-server
tasksel --task-packages mail-server
tasksel --task-packages openssh-server

The output of which is

$ tasksel --task-packages dns-server
bind9-doc
bind9
$ tasksel --task-packages lamp-server
apache2
mysql-client-5.0
libapache2-mod-php5
apache2.2-common
apache2-utils
libaprutil1
php5-common
php5-mysql
libdbi-perl
libmysqlclient15off
libplrpc-perl
mysql-server
mysql-server-5.0
libdbd-mysql-perl
libnet-daemon-perl
libxml2
libapr1
libpcre3
libpq5
apache2-mpm-prefork
mysql-common
$ tasksel --task-packages mail-server
liblockfile1
dovecot-imapd
procmail
dovecot-common
postfix
openssl
mutt
libmysqlclient15off
mailx
ssl-cert
dovecot-pop3d
libpq5
mysql-common
$ tasksel --task-packages openssh-server
libck-connector0
openssh-server

Inputs are the list of packages installed on helen, hecate, horace and badday.

We should have a reason for installing any package.

Many will be installed as a dependency of other packages.

Lots of thought and digging involved.