Sometimes you may want to change some attribute for a number of hosts at once. Instead of opening each individual host for editing, you may use the mass update function for that.
To mass-update some hosts, do the following:
The following options are available when selecting the respective button for template linkage update:
To specify the templates to link/unlink start typing the template name in the auto-complete field until a dropdown appears offering the matching templates. Just scroll down to select the required template.
The Clear when unlinking option will allow to not only unlink any previously linked templates, but also remove all elements inherited from them (items, triggers, etc.).
The following options are available when selecting the respective button for host group update:
These fields are auto-complete - starting to type in them offers a dropdown of matching host groups. If the host group is new, it also appears in the dropdown and it is indicated by (new) after the string. Just scroll down to select.
User macros, {INVENTORY.*} macros, {HOST.HOST}, {HOST.NAME}, {HOST.CONN}, {HOST.DNS}, {HOST.IP}, {HOST.PORT} and {HOST.ID} macros are supported in tags. Note that tags with the same name but different values are not considered 'duplicates' and can be added to the same host.
The following options are available when selecting the respective button for macros update:
To be able to mass update inventory fields, the Inventory mode should be set to 'Manual' or 'Automatic'.
Buttons with the following options are available for value map update:
When done with all required changes, click on Update. The attributes will be updated accordingly for all the selected hosts.