You want to be notified when someone connects on your server with ssh? Add this sshrc config file to your ssh config directory (/etc/ssh)::

  emailfrom=root@`hostname`
  emailto=<_your address here_>
  fulluser="$USER@"`hostname`
  date822=`date -R`
  ldate=`date "+%A %e %B %Y a %Hh%M %Z"`
  host_ip="`echo $SSH_CONNECTION | awk '{print $1}'`"
  host_dns="`host ${host_ip}`"
  
  echo -e "\
  From: $emailfrom
  To: $emailto
  Subject: [SSHRC] ssh session - $USER
  Date: $date822
  User-Agent: sshrc
  Mime-Version: 1.0
  Content-Type: text/plain; charset=ISO-8859-15; format=flowed
  Content-Transfer-Encoding: 8bit
  Hello,
  
  A ssh session version $SHLVL opened,
  with local user $fulluser,
  $ldate,
  from host  $SSH_CONNECTION.
  host DNS : $host_dns
  
  
  - -- 
  sshrc" | /usr/sbin/sendmail -t

Add your email to the emailto variable, test and modify to your needs.


Thanks to Léa for her ssh post on this.