Template management is done in the host section, so open Configuration | Hosts, choose all in the Group dropdown, then choose Templates from the dropdown in the upper-right corner. As we can see, there are already 42 (a coincidence, surely) predefined templates. We will create our own specialized one though; click on Create Template. This opens a simple form that we have to fill in:
Name: Enter C_Template_Linux
New group: Enter Custom Templates
The C_
at the front of the name might stand for "Custom". We are also creating a new group to hold our templates in, and instead of going through the group configuration we use the shortcut for group creation on this form. When you are done, click Save.
We now have the template, but it has no use there are no items or triggers assigned. Go to Configuration | Hosts, where we will use a lazy and quick solution. Select Linux servers in the Group dropdown, then click on Items next to Another Host. Mark all items by clicking in the...