apt-get -y install openssh-server
# Set up mail system.
-apt-get -y install getmail4 procmail mutt postfix maildrop
+DEBIAN_FRONTEND=noninteractive apt-get -y install getmail4 procmail mutt postfix maildrop
+cp config/systemfiles/main.cf /etc/postfix/main.cf
su plom -c 'mkdir -p /home/plom/mail/'
su plom -c 'mkdir -p /home/plom/mail/inbox/{cur,new,tmp}'
su plom -c 'mkdir -p /home/plom/mail/new_inbox/{cur,new,tmp}'
-cp config/systemfiles/mail.cf /etc/postfix/main.cf
# Set up screen.
apt-get -y install screen