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Foglight Experience Monitor 5.8.1 - Installation and Administration Guide

Installing and configuring Multi-appliance clusters Configuring the appliance Specifying monitored web traffic Transforming monitored URLs Managing applications Foglight components and the appliance Using the console program Troubleshooting the appliance Appendix: Third party software Appendix: Dell PowerEdge system appliance

Managing servers on a Portal

When you access the Servers page on a portal, a section for each probe displays the servers it has been configured to monitor. You cannot configure the list of monitored servers on a portal. Instead, use the web console for the probe whose server list needs to be changed.

On a portal, from the Servers page, click Configure servers on the probe to launch the web console for the probe so you can modify the configuration.

Figure 48. Servers page

Using filters to exclude traffic

Filters consist of regular expressions that are used to exclude specific traffic from being recorded in Foglight Experience Monitor or Foglight Experience Viewer. You can define two types of filters:

URL Filters—exclude traffic by URL, User Agent, HTTP URLs, or HTTPS URLs. These type of filters allow you to exclude traffic from Foglight Experience Monitor, Foglight Experience Viewer, or both.
Subnet Filters—exclude traffic by specifying a subnet.

For more information, see these topics:

Navigate to Configure > Monitoring > Filters.
Click Add a URL Filter.
URL—excludes all URLs matching the filter.
User Agent—excludes crawler and synthetically generated traffic.
HTTP URL—excludes all HTTP URLs matching the filter.
HTTPS URL—excludes all HTTPS URLs matching the filter.
To exclude specific traffic from appearing in the appliance’s metrics lists, select the Exclude traffic matching this filter from analysis check box.
To exclude matching URLs from being transmitted to the Foglight Experience Viewer, select the Exclude traffic matching this filter from hits sent to Foglight Experience Viewer check box.

After adding a URL filter you can verify that any data matching the filter criteria will be excluded from the traffic by clicking the Test link to the right of the filter. The Filter Test window displays a list of all URLs or user agents that match the filter you have entered and will be excluded from the traffic sent to analysis or playback.

Figure 49. Filter test page

You can define subnet filters in order to exclude traffic originating from a specific subnet of IP addresses.

Navigate to Configure > Monitoring > Filters.

Defining subnets

Subnets provide an independent network segment that consists of all devices for an IP address that have the same prefix. Using subnet masks, networks are divided into subnests based on security, performance and physical requirements.

The Subnets page lists the IP address and subnet mask pairs that the appliance monitors. Each subnet can be further defined by a geographical location which consists of a city, a region and a country location. Configuring a subnet by location provides you with more control over incoming traffic. When using the geographical location, traffic is categorized by location based on a subnet’s address.

Figure 50. Subnets page

For more information, see these topics:

Manually adding subnets

Navigate to Configure > Monitoring > Subnets page and click Add a Subnet.
If you need to search by Perl regular expression, check the Interpret as a regular expression option.
You can use an asterisk (*) as a wild card to define a segment of the string that matches any combination of characters.
Click the Add button.
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