It depends: 1. if the backup is server-initiated, then you only need a protocol rule allowing port 6050 2. if it's client-initiated, you create a custom protocol and a server-publishing rule from the DMZ to the ArcServer server. The details depend on the actual setup between each client and the backup servers. ..of course, they have to resolve each other's names, too. Jim Harrison MCP(NT4, W2K), A+, Network+, PCG http://isaserver.org/pages/author_index.asp?aut=3 http://isatools.org Read the help / books / articles! ----- Original Message ----- From: "Mario Simard" <mario.simard@xxxxxxxxxxxxxxx> To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx> Sent: Friday, November 15, 2002 9:12 AM Subject: [isalist] Backup Issue http://www.ISAserver.org We have ISA server in Integrated mode. We have 8 files servers in DMZ and 2 in the internal network. All those servers are SecureNat client. We use arcserve Enterprise edition on the exchange server in the internal network with HP Ultrium tape backup. The others files servers are setup with the arcerve agent using the port 6050 including ISA. It means, ISA use port 6050 for it's own Arcserve Agent. Actually, the backup server can connect with arcserve agent on ISA server and the others Intranet files servers but not with any of the DMZ servers So How can I configure ISA to take the backup of DMZ files servers ? Thanks for your help ----------------------------------------------------------- Mario Simard, ing TÉLÉNET Informatique inc. Tél.: (418) 545-7070 Fax.: (418) 545-2230 ----------------------------------------------------------- List Sponsored by Aspelle Aspelle's Microsoft-centric, Aspelle Everywhere, leverages ISA server and the Internet to quickly and cost-effectively manage and deliver secure, client-less access to all corporate applications (Web, Unix, Windows and legacy systems), for all users. More info at http://www.aspelle.com/info ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp ISA Server FAQ: http://www.isaserver.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Exchange Server Resource Site: http://www.msexchange.org/ Windows Security Resource Site: http://www.windowsecurity.com/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: jim@xxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')