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Please provide some suggestion to the above question. 
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Please provide some suggestion to the above question.

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I have a scenario wherein I am monitoring 70 domain controllers using SCOM 2007 R2. We have a Microsoft CA installed in our LAN and out of 70 domain controllers 65 DC's are in LAN and are getting monitored using SCOM which is implemented in LAN zone. 5 DC's are in DMZ zone and have no connection to SCOM server or CA server. But those DC's have connectivity with PDC and one more member server. I want to monitor the DMZ servers also but not able to do so. <br />
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If I go ahead and install the member server as Gateway server then I need certificate for the DMZ servers from the LAN CA server which is not conneted from DMZ servers.<br />
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Please suggest how can I implement monitoring of DMZ servers through SCOM.
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I have a scenario wherein I am monitoring 70 domain controllers using SCOM 2007 R2. We have a Microsoft CA installed in our LAN and out of 70 domain controllers 65 DC's are in LAN and are getting monitored using SCOM which is implemented in LAN zone. 5 DC's are in DMZ zone and have no connection to SCOM server or CA server. But those DC's have connectivity with PDC and one more member server. I want to monitor the DMZ servers also but not able to do so. 

If I go ahead and install the member server as Gateway server then I need certificate for the DMZ servers from the LAN CA server which is not conneted from DMZ servers.

Please suggest how can I implement monitoring of DMZ servers through SCOM.

SCOM Gateway Server

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).

Windows Server 2003

Microsoft server applications are those applications developed specifically, but not necessarily exclusively, on the Windows Server platform. In addition to well-known products like SQL Server, Exchange, Internet Information Services (IIS), Microsoft Dynamics, Forefront, Lync and Sharepoint, they include applications like Skype, BizTalk, Hyper-V, Groove and Commerce Server. Server applications are managed with the Microsoft System Center.

Microsoft Server Apps

Microsoft applications include a variety of software programs, including development and digital authoring programs (Expression and Media Center), educational programs, Internet software, including Essentials, Skype and the Live family, anti-virus, productivity applications and suites like Office, Excel, Word, Outlook, Access and PowerPoint, video games and server applications such as Exchange, SharePoint, IIS and Virtual Server.