Install Guide
b. Select _PCOIP-tool on the right-hand pane, right-click and select Properties.
c. In the Properties window, check the Time to live (TTL) value. The caching interval is called the Maximum TTL value and
the default is 1 hour. You can change this if you want.
The TTL eld is displayed only if you have selected Advanced View in the View menu of the DNS Server.
The load balancing is now congured for ThreadX devices and you can use the your WDM Management Servers to manage a large
number of ThreadX devices.
GUID-DE70A0F7-5557-4C02-8A29-689D18578745
Conguring Load Balancing for ThreadX 5.x Devices
When WDM is used to manage ThreadX 5.x devices in a large enterprise environment, a single Teradici Device Proxy Server which is
used to manage ThreadX 5x devices from WDM cannot scale up to manage more than 18 thousand devices. There could be
problems or delays in client check-ins, schedule execution, and/or real-time command execution.
Load balancing helps resolve these problems to a great extent. In this setup, you can install and run multiple instances of Teradici
Device Proxy Servers on dierent systems and balance the load between them using a proxy as described below.
The components of the load balancer are as follows:
• Teradici Device Proxy Server
• HA Proxy Server
WDM uses the HAProxy hosted on the Ubuntu server 16.04.1 LTS to perform load balancing between the Teradici Device Proxy
servers. HAProxy is a load balancer proxy that can also provide HA based on how it is congured. It is a popular open source
software for TCP/HTTP Load Balancer, and proxying solution which can be run on Linux. The most common use is to improve the
performance and reliability of a server environment by distributing the workload across multiple servers.
This section describes how to set up and congure load balancing of the HA Proxy Server.
Steps to create DNS_SRV Record:
Firmware 5.x uses a DNS_SRV record in addition to the text record that contains the thumbprint of the SSL certicate to use in the
management console.
WDM 5.7.2 supports Teradici 5.x rmware with comprehensive features.
1. The rst record required is a DNS_SRV record for _pcoip-bootstrap. The record must point to the name of the Teradici Device
Proxy (HAProxy).
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