nagios-check-spf-record-match

A Nagios check for monitoring the state of SPF records across multiple domains

Usage: check_spf_record_match [options]
        --domains domain,[domain]    which domains do you wish to report on?
        --debug                      enable debug mode
    -h, --help                       help

Configuration

define command{
  command_name  check_spf_record_match
  command_line  $USER1$/check_spf_record_match.rb --domains '$ARG1$'
  }

define service{
  use                             generic-service
  host_name                       spf_check
  service_description             SPF Record Match
  check_command                   check_spf_record_match!domain1.com,domain2.com!
}

Notes:

• For our purposes, it supports only SPF records. It could be modified to support DMARC records also if there's interest.
• It supports only TXT records. Ruby doesn't support the SPF rr type, and since the use of it is deprecated anyway I didn't add that functionality.