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Foglight APM for Real User Experience 5.9.11 - Installation and Setup Guide

Table of Contents

Installation overview

Introducing the monitoring architecture

Software components

Foglight Management Server Archiver Sniffer Browser Instrumentation Relayer Archiver databases

Ports used by Foglight APM

Appliance types Typical monitoring solutions

Monitoring physical networks Monitoring virtual networks Mixing physical and virtual appliances Adding Foglight APM to an existing Foglight installation

Installing physical appliances

Before you begin

Physical appliance components Other network components required Anatomy of an appliance

Planning an installation of physical appliances

Public network switch Private network switch for the capture subnet Network taps

Monitoring individual web servers Monitoring web server farms

Network information required for physical appliances

Installing appliances on a network rack Connecting appliances to the network Connecting Sniffers

Connecting Sniffers to network taps Connecting Sniffers to Archivers

Connecting one Sniffer to one Archiver Connecting Sniffers to Archivers

Starting physical appliances and configuring remote access Launching the Console Program remotely with DRAC

Installing virtual appliances

Monitoring multiple ESXi hosts

Monitoring multiple hosts through a centralized Sniffer Monitoring multiple hosts using local Sniffers Mixing virtual and physical appliances Scaling out a multiple host configuration Installing virtual appliances to monitor multiple hosts

Monitoring a single ESXi host

All-on-one-host variation Scalability Installing virtual appliances to monitor a single host

Before you begin

Software environment Foglight APM OVF templates Required port groups RAID configuration Network information for virtual appliances

Creating port groups on virtual switches

Configuring port groups on a distributed switch

Creating a Monitoring Network port group required by Sniffers Creating the Capture Network port group required by Sniffers and Archivers Creating a virtual adapter for the Capture Network port group

Configuring port groups on a standard switch

Deploying Foglight virtual templates Deploying the Foglight virtual Sniffer template Connecting virtual appliances on different servers Powering on virtual appliances

Setting up appliances

Logging in to the Console Program Enabling SSH and changing the default password Setting the date and time Specifying network settings Exiting the Console Program Launching Foglight Configuring software components

Working with appliance-hosted Management Servers

Configuring Management Server settings Configuring the Management Server to work with SSL keys

Creating a new SSL key for Foglight HTTPS access Using an existing SSL key for Foglight HTTPS access Configuring Foglight for secure remote LDAP access

Restricted file access Transferring support files from a physical appliance

Transferring files to Windows systems Transferring files to Linux systems

Troubleshooting appliance-hosted Management Servers Differences from working with server-hosted Management Servers

Setting up server-hosted Management Servers

Server requirements

Downloading and installing 256-bit encryption files Disabling the NetBIOS over TCP/IP setting

Installing Foglight APM cartridges Communicating with Sniffer and Archiver appliances Configuring Federated Children Enabling High Availability mode

Maintaining appliances

Launching the Console Program

Accessing physical appliances using SSH on Microsoft Windows systems Accessing physical appliances using SSH on UNIX systems

List of tasks available from the main menu Managing user accounts

Adding new user accounts Modifying user accounts and enabling SSH Removing user accounts

Modifying the time zone, time, or date Modifying the list of NTP servers for physical appliances Modifying network settings Shutting down appliances Rebooting appliances Updating software

Upgrading from a PKG file Displaying the upgrade log

Testing network settings Stopping and starting processes Reviewing the appliance system details and health status Reviewing the status of NIC devices Verifying monitored traffic by port Purging and resetting Archiver databases Creating support bundles Creating TCP dump files Accessing the home directory Creating Dell report archives on physical appliances

Backing up and restoring physical appliances

Setting up appliances as NetVault clients

Enabling an appliance's NetVault client Registering an appliance in NetVault

Running and restoring backups

Stopping Foglight and running a backup Restoring backups

Preparing a new appliance Restoring a backup

Appendix: Troubleshooting

Diagnosing Sniffer issues

Overview of the Sniffer test Running the Sniffer test Investigating and resolving issues in monitored traffic

Understanding packet drops with SPAN ports and aggregation network taps Expanding full partitions on virtual appliances

Expanding the size of virtual disks Expanding the size of partitions

Archiver

An Archiver receives data from the Sniffers in its capture group. It performs traffic analysis tasks on the data, such as running analyzers on hits, sequences, or sessions to generate additional details, fields, and metrics. The Archiver then stores all the data (captured and generated) in its local Archiver database for searching and reporting.

Sniffer

A Sniffer captures raw packets of web traffic crossing its tap points on the network and/or from instrumented browser pages. Sniffers decode, decrypt, and analyze the packets. This includes activities such as SSL decryption and reassembling hit-level and page-level fields. The Sniffer transmits the data to an Archiver within the same capture group for further analysis and storage. A capture group defines a set of Sniffers and Archivers that work together.

Browser Instrumentation

While more invasive than the passive monitoring performed by a Sniffer, browser instrumentation is sometimes the only reliable way to track down performance issues occurring outside of your own web servers, such as slow content service by external web servers in a Content Delivery Network (CDN) or inefficient processing by client browsers in a Web 2.0 application. Instrumentation has two parts: the instrumentation library and the instrumentation listener. You add the Foglight APM instrumentation library to a website or a web page using as a JavaScript include statement. An onsite web server and the Sniffer together act as the instrumentation listener. The web server receives data from the instrumented pages and the Sniffer, which is monitoring the server, parses out the data and sends it on to the Archiver with all the other captured data.

Relayer

Each Sniffer and Archiver contains a Relayer component that handles communication from the Sniffers to the Archivers. Relayers also function as load-balancers, distributing captured data evenly among the Archivers within a capture group.

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