Ubuntu

The hosts are listening to these ports:

• port
  22 (ssh)

  35 hosts
• port
  25 (smtp)

  4 hosts
• port
  53 (dns)

  3 hosts
• port
  80 (http)

  10 hosts
• port
  123 (ntp)

  2 hosts
• port
  143 (imap)

  4 hosts
• port
  443 (https)

  10 hosts
• port
  465 (smtps)

  4 hosts
• port
  587 (submission)

  4 hosts
• port
  993 (imaps)

  4 hosts
• port
  3000 (grafana)

  3 hosts
• port
  3128 (squid)

  4 hosts
• port
  3306 (mysql)

  1 host
• port
  5308 (cfengine)

  35 hosts
• port
  5432 (postgresql)

  1 host
• port
  9090 (prometheus)

  3 hosts