* [kdc](10-icinga-template-library.md#plugin-contrib-command-kdc)
* [rbl](10-icinga-template-library.md#plugin-contrib-command-rbl)
+* [Icinga Certificate Monitoring](https://icinga.com/products/icinga-certificate-monitoring/)
+
### Java Monitoring <a id="service-monitoring-java"></a>
* [jmx4perl](10-icinga-template-library.md#plugin-contrib-command-jmx4perl)
### VMware Monitoring <a id="service-monitoring-virtualization-vmware"></a>
+* [Icinga Module for vSphere](https://icinga.com/products/icinga-module-for-vsphere/)
* [esxi_hardware](10-icinga-template-library.md#plugin-contrib-command-esxi-hardware)
* [VMware](10-icinga-template-library.md#plugin-contrib-vmware)