Description: A template link in monitoring systems is a feature that allows a host to inherit items and triggers from a predefined template. This means that by associating a host with a template, monitoring configurations such as items, graphs, and triggers can be automatically applied without the need to manually configure them for each individual host. This functionality is particularly useful in environments where multiple hosts with similar configurations are managed, as it simplifies administration and reduces the risk of errors. Template links enable more efficient management, as any changes made to the template are automatically reflected in all linked hosts. Additionally, links can be hierarchical, meaning a host can be linked to multiple templates, thus inheriting characteristics from each. This flexibility and adaptability make template links an essential tool for system administrators looking to optimize monitoring and infrastructure management.