diff --git a/script/host/pam/README.md b/script/host/pam/README.md
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+++ b/script/host/pam/README.md
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+How to use
+==========
+
+You can use this script `ssh-notify-root-login.sh` in two different ways.
+
+1.) Use it as is
+----------------
+
+In this use case you just have to call this script once.
+
+It will register itself to the file `/etc/pam.d/sshd` and because there is just a logfile defined you will get that functionality.
+
+Each ssh login of user root will be logged into this file:  
+ - `/var/log/ssh-notify-root-login.sh.log`
+
+2.) Use your own configuration
+------------------------------
+
+In this case copy the script to a custom location or put it into your definitions, e.g.:
+ - `/cis/definitions/your.domain.net/script/host/pam/ssh-notify-root-login.sh`
+  
+There you can modify the following variables:
+ - _LOGFILE 
+ - _EMAIL_ADDRESS
+ - _SLACK_WEBHOOK_URL
+
+Setting these variables to "" will disable the feature.
+
+If you set a varaible to a valid value, e.g. a webhook-url of slack, you will get a slack-message on each login.
+ 
\ No newline at end of file
diff --git a/script/host/pam/ssh-notify-root-login.sh b/script/host/pam/ssh-notify-root-login.sh
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+++ b/script/host/pam/ssh-notify-root-login.sh
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+#!/bin/bash
+
+_FULL_SCRIPTNAME="$(readlink -f "${0}" 2> /dev/null)"
+_SCRIPTNAME=${_FULL_SCRIPTNAME##*/}
+
+_LOGFILE="/var/log/${_SCRIPTNAME?:"Missing SCRIPTNAME"}.log" 
+_EMAIL_ADDRESS=""
+_SLACK_WEBHOOK_URL=""
+readonly _FULL_SCRIPTNAME _SCRIPTNAME
+
+
+
+function log() {
+    local _MESSAGE
+    _MESSAGE="${1:?"sendEMail(): Missing first parameter MESSAGE"}"
+    readonly _MESSAGE
+
+    [ "${_LOGFILE}" == "" ] \
+        && return 1
+
+    echo "${_MESSAGE}" >> "${_LOGFILE}" \
+        && return 0
+
+    return 1
+}
+
+function sendEMail() {
+    local _SUBJECT _MESSAGE
+    _SUBJECT="${1:?"sendEMail(): Missing first parameter SUBJECT"}"
+    _MESSAGE="${2}"
+    readonly _SUBJECT _MESSAGE
+
+    [ "${_EMAIL_ADDRESS}" == "" ] \
+        && return 1
+
+    # Needs: apt install mailutils
+    echo "${_MESSAGE}" | mail -s "${_SUBJECT}" "${_EMAIL_ADDRESS}" \
+        && return 0
+
+    return 1
+}
+
+function sendSlackMessage() {
+    local _MESSAGE _ICON
+    _MESSAGE="${1:?"Missing first parameter MESSAGE"}"
+    _ICON=":exclamation:"
+    readonly _MESSAGE _ICON
+
+    [ "${_SLACK_WEBHOOK_URL}" == "" ] \
+        && return 1
+
+    # Needs: apt install curl
+    curl -X POST --data-urlencode "payload={\"icon_emoji\": \"${_ICON}\", \"text\": \"${_MESSAGE}\"}" "${_SLACK_WEBHOOK_URL}" \
+        && return 0
+
+    return 1
+}
+
+function setup() {
+    local _COMMAND _PAM_FILE
+    _COMMAND="session optional pam_exec.so ${_FULL_SCRIPTNAME?:"Missing FULL_SCRIPTNAME"}"
+    _PAM_FILE="/etc/pam.d/sshd"
+    readonly _COMMAND _PAM_FILE
+
+    # Lines are already appended, so nothing is to do, therefore no setup.
+    grep -Fq "/${_SCRIPTNAME?:"Missing SCRIPTNAME"}" "${_PAM_FILE:?"Missing PAM_FILE"}" \
+        && return 1
+
+    # Append command to call this script, which is the setup.
+    [ -f "${_PAM_FILE}" ] \
+        && echo -e "\n#Call this script on each ssh-login\n${_COMMAND}" >> "${_PAM_FILE}"
+
+    return 0
+}
+
+if [ "$PAM_TYPE" != "close_session" ] && ! setup && [ "${PAM_USER}" != "" ] && [ "${PAM_USER}" == "root" ]; then
+    _MESSAGE="[$(date --rfc-3339=seconds)] - Login from IP: '${PAM_RHOST}' as user 'root@$(hostname)'"
+
+    log "${_MESSAGE}"
+    sendEMail "${_MESSAGE}"
+    sendSlackMessage "${_MESSAGE}"
+fi