After the basic Installation we neet some debian packages. Java versions change with the development, so use a current version of the JDK. At the time of the reviev debial jessie offered version 7.
Optionally you can chose other repositories, if you need a more current version of java

apt-get install htmldoc imagemagick mysql-client subversion unzip zip
apt-get install openjdk-7-jdk
apt-get install ffmpeg (or libav-tools in newer versions of debian/ubuntu)
apt-get install subversion git

ILIAS development was done in a subversion repository until version 5.0 and changed to git afterwards. Since some components (plugins or external tools) have their sources in a svn or in a git repository, I recommend to have both tools installed.

Optionally you can install the package vim-nox for an easier use of the vi editor

apt-get install vim-nox

ILIAS needs a message transfer agent ("mailserver", mta) to send mails to external adresses. You can chose any mta you can support (e.g. sendmail, exim, postfix). In this installation I chose postfix as mta in the satelite system configuration. The installation requires the configuration of the mail system type. The satelite system requires the optoins for smarthost and smtp server for further transport of mails. You have to coordinate these settings with your local mail administrator.

apt-get install postfix