vRealize Log Insight is a product offered by VMware that has many capabilities on a single syslog server.

It has powerful add-ons that help you better understand your vSphere environment and it allows you to easily drill down through your whole environment.

vRealize Log Insight comes as an OVA appliance that you can quickly deploy to your vSphere environment. Using its powerful HTML5 interface, you can access all the logs from the entire infrastructure, as demonstrated in the following screenshot:

In the past, Log Insight was a free product that was available automatically with your vCenter server license. Recently, however, there were changes in the licensing. vRealize Log Insight 4.6 is the last available version that you can use for free.