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Chapter 3 - System Components TriTech has successfully implemented systems with either dedicated physical servers or consolidated server based applications onto limited, but more powerful servers. The decision will be based upon the customer's particular goals for system administration costs, redundancy, and impact to the operation. Remember to consider that a single server running multiple applications (interfaces or mobile applications) may prompt all of the applications to be stopped when troubleshooting a problem with a particular application, rebooting the server or applying OS patches to the server. For Inform CAD Business / Interface Servers General Hardware recommendations refer to the TriTech Hardware Specification Guidelines. 10.1 CD / DVD DRIVE Many recent model servers do not have CD / DVD drives by default. When planning server replacements, make sure that one or more servers for your Inform CAD network will have CD / DVD drives. Inform CAD has several related software applications/services that are web -based. These include Inform Browser and Recall. These applications and services operate through Internet Information Services (IIS). / Inform Browser operates under the control of Inform CAD Security and provides access to unit and incident information aid selected Inform CAD functions (such as paging, messaging, and basic rostering). It displays in Internet Explorer. Inform Browser utilizes Microsoft .NET technology. This server also operates the Remote Processor that is needed for Browser Rostering and Call -Taking functions. / Inform CAD Recall works as a component of Inform CAD 5.7 and provides information displays to support certain CAD functions. It utilizes Internet Explorer technology, but displays in its own form on the Inform CAD workstation. Placing the Web Server with Inform CAD Recall installed into the DMZ is not a supported configuration due to security concerns TriTech Media Service — FTP Component needed for Document Attachment feature in 5.7. If the customer will utilize the Document Attachment feature (specifically streaming video), disk space for this server should be carefully monitored and expanded as needed. Placing the Web Server with TriTech Media Service installed into the DMZ is not a supported configuration due to security concerns. Each of these web -based functions is supported by a Inform Web Server operating Internet Information Server (IIS Server) with HS 6 Management Compatibility. These can be supported from the same server in most cases - with volume and security being the primary factors. 10.2.1 INFORM BROWSER NETWORK CONFIGURATION The Inform Browser server needs to reside on the CAD Domain in order to be installed or upgraded. Inform Browser can function as an Internet or Intranet application. However, Inform Recall and Web Services are not designed as secure Internet applications and should be limited to an Intranet environment. Therefore, the Inform Web Server for Recall and Inform Web services must be inside of the customer's frrewall. If Inform Browser will be accessible from the Internet, TriTech recommends that the Inform Browser server be placed in the Inform CAD trusted network and a reverse proxy be placed in the DMZ to proxy the request to the Inform Browser server. TriTech also recommends that a web certificate be created (self signed) or purchased by a trusted Certificate Authority to secure blip traffic between the Inform Browser client and the Inform Browser server. TriTech has tested Microsoft IIS 7 Application Request Routing v3 to fulfill this recommendation. The contents of this material are confidential and proprietary to TriTech Software Systems, Inc. and may not be reproduced, published or disclosed to others without the prior written consent of TriTech Software Systems, Inc. ©2015 TriTech Software Systems