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You will need DNS but not DHCP. ISA needs DNS to do the tracking, filtering, &amp;&nbsp;be able to set up rules, etc.
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You will need DNS but not DHCP. ISA needs DNS to do the tracking, filtering, & be able to set up rules, etc.

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I forgot to say that if you want your ISA server to be a domain member that you should use the DNS service on your DC and not on ISA.
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I forgot to say that if you want your ISA server to be a domain member that you should use the DNS service on your DC and not on ISA.

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Sticking to the best-practice guides, the installation manual and the Microsoft courses, DNS should not be installed on the ISA Server. <br />
<br />
Keith<br />
ISA MVP
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Sticking to the best-practice guides, the installation manual and the Microsoft courses, DNS should not be installed on the ISA Server.

Keith
ISA MVP

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Absolutely. Also, don't forget that the ISA external nic must ALSO use the internal dns servers.
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Absolutely. Also, don't forget that the ISA external nic must ALSO use the internal dns servers.

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I am about to install ISA server. I have about 30 users and an Active directory acting as a DHCP and DNS. Can I install ISA without DHCP and DNS or they these services are mandatory to be installed on the ISA machine.<br />
I am willing to keep the DNS and the DHCP on the DC.<br />
Any suggestion regarding this issue?
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I am about to install ISA server. I have about 30 users and an Active directory acting as a DHCP and DNS. Can I install ISA without DHCP and DNS or they these services are mandatory to be installed on the ISA machine.
I am willing to keep the DNS and the DHCP on the DC.
Any suggestion regarding this issue?

ISA, DNS and DHCP

Microsoft Forefront, formerly known as Internet Security and Acceleration Server (ISA Server), is a network router, firewall, antivirus program, VPN server and web cache that runs on Windows servers. It includes identity management and protection systems, and discontinued systems for threat management and network protection, along with protection for Sharepoint and Exchange. The scope of discussions includes forward and reverse proxy, application and service publishing, virtual private networks (VPNs), outbound access rules, SSL certificates and network routing within either a single node or an highly-available array pairing.