libpam-script_twilio

#!/bin/bash

# Send a Twilio SMS when a person logs in over SSH or uses sudo. Michael Fincham <michael@hotplate.co.nz> 2017-05-22
#
# For a Debian host:
# - Install the packages for libpam-script and curl 
# - Edit this script to set the configuration variables, and place it in /usr/share/libpam-script/pam_script_acct
# - Add this line to /etc/pam.d/common-account:
#   account optional pam_script.so

from_number="+15555555555"
to_number="+15555555555"
account_sid="ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
auth_token="8f9c65c158d57c6bbb58102ac8b62361"

case ${PAM_SERVICE} in
    sshd|sudo)
        if [[ ${#PAM_RHOST} -gt 0 ]]; then
            remote_host_string=" from ${PAM_RHOST}"
        else
            remote_host_string=""
        fi
        curl -X POST -F "Body=${PAM_USER} logged in to ${PAM_SERVICE} on $(hostname -f)${remote_host_string} at $(date)" \
            -F "From=${from_number}" \
            -F "To=${to_number}" \
            "https://api.twilio.com/2010-04-01/Accounts/${account_sid}/Messages" \
            -u "${account_sid}:${auth_token}" >/dev/null 2>&1 &
    ;;
    *)
        exit 0
    ;;
esac

Fixed the wacky indentation.

Thanks finchy love u lots xoxo

NP :)