14 Copyright © Acronis, Inc., 2000-2009The Acronis Group Server uses administrator’s credentials to perform data backup taskson the computers. You will be asked for the credentials during the Acronis Group Serverinstallation. The credentials you provide will be used for running the Acronis Group Serverservice and also applied to all networked computers.Therefore, it is recommended that you have a uniform account for all computers wherethe Acronis True Image Agent is installed. Domain administrators can use the domainadministrator account. In a workgroup, it would make sense to create identical accountsin the Administrators group on each computer with Acronis True Image Agent.If you do not wish to create a uniform account, provide credentials for each computerafter Acronis Group Server installation as described in point 4 of4.4.1 Group statusdisplay.You can combine both methods, for example, to set up a uniform account for domainmembers and set individual accounts for members of a workgroup.2.2.2 Firewall setupAcronis True Image for Microsoft Small Business Server uses the following ports and IPaddresses for remote operation:server (Acronis True Image Agent) UDP port: 9876server (Acronis True Image Agent) TCP port: 9876, if busy choose a port at randomclient (Acronis True Image Management Console) UDP port: 9877, if busy choose a portat randomIPv4 multicast address: 239.255.219.45IPv6 multicast address: FF05::fAA5:741E.You might have to set the appropriate firewall access options. Options for the WindowsFirewall, included in Windows XP Service Pack 2 and Windows 2003 Server, are setautomatically during Acronis True Image for Microsoft Small Business Server componentsinstallation. However, make sure that the option File and Printer Sharing in theControl panel -> Windows Firewall -> Exceptions is enabled on the remotecomputer, before the remote operation starts.2.2.3 Encrypted communicationAcronis True Image for Microsoft Small Business Server provides capability to secure alldata transferred between Acronis components within local net and through DMZ,including the backup stream.Encryption starts on the first (earliest) stage of connection attempt, so all data transferredon the next steps (including data required for client authentication) is encrypted.Once Acronis True Image for Microsoft Small Business Server components are installed,encrypted communication between the components is enabled automatically.The earlier versions of Acronis True Image Enterprise Server did not support encryptedcommunication, therefore connection to such components, if they present on thenetwork, will not be encrypted. You have an option to completely disable non-encryptedcommunication with some or all Acronis True Image for Microsoft Small Business Servercomponents. In this case, the components will not be able to communicate withcomponents of earlier versions. For how to disable non-encrypted communication, see thenext section.
