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Server Name Indication based metrics
This article helps with providing steps to install and use the SNI TLS Metrics app in Trisul Network Analytics.
To provide visibility into TLS/SSL traffic by breaking it up by SNI Hostname.
SNI stands for Server Name Indication.It indicates the hostname thT is being contacted by the browser at the beginning of a handshake.This feature allows a server to connect multiple SSL Certificates to one IP address and gate.
This app provides the following 3 metrics namely,
- A new Counter Group called “SNI”
- A new Resource Group called “SNI” contains IP→SNI hostname mapping.
- Top SNI Hostnames for each meter by bandwidth and hits.
Installing
- You can install the app by logging on as Admin,and selecting Web Admin > Manage > Apps > SNI TLS Metrics.
- Restart the probes.
Viewing Data
The app shows the following metrics,
- meter 0 : bandwidth per hostname.
- meter 1 : flows/hits per hostname.
You can view the metrics by selecting Retro > Retro Counters.
