See SA-CONTRIB-2013-059 - Hostmaster (Aegir) - Access Bypass for details.
Changes since 6.x-1.9:
Development releases for the Drupal 6 compatible branch.
Starting point for the Server Monitor module. Initial commit of D6 code. Allow for monitoring of multiple servers using ping, curl or drupal_http_request
added callback
#2027089: Caching issues - Added backport of better utilizing cdn by having full version numbers of webfont loader library.