ID: 1012 Title: Fix quoting of \ in custom checks with nagios core Component: Core & Setup Level: 2 Class: Incompatible Change Version: 1.2.5i5 When you are using Nagios as montitoring core then backslashes contained in <tt>custom_checks</tt> (Classical active and passive Nagios checks) would be interpreted by Nagios. That way single backslashes would usually vanish und you would have to duplicate them. The Check_MK Micro Core never interpreted these backslashes so it was transparent for the user. This fix changes the behaviour of Check_MK in a way that also with the Nagios core you need only one backslash. Backslashes are transparent now. <b>NOTE</b>: If you have custom checks that contain backslashes (for example as part of names or passwords) then you need to remove duplicate backslashes after this update!