ZCS Multi_Server Installation Guide, Open Source 4.5
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System Requirements for Zimbra Collaboration Suite 4.5

System Requirements for Zimbra Collaboration Suite 4.5
Zimbra Collaboration Suite system requirements for both the Network Edition and the Open Source Edition.
 
Intel/AMD CPU 32-bit 2.0 GHZ+.
For large deployments (more than 2000 users), 64-bit OS is recommended.
Minimum - 2 GB RAM
Recommend - 4 GB
10 GB free disk space for software and logs (SATA or SCSI for performance, and RAID/Mirroring for redundancy)
*Temp files space- The zimbra-store requires 5GB for /opt/zimbra, plus additional space for mail storage. The other nodes require 100MB.
Firewall Configuration should be set to "No firewall”, and the Security Enhanced Linux (SELinux) should be disabled
RAID-5 is not recommended for installations with more than 100 accounts.
Minimum - 2 GB RAM
Recommend - 4 GB
*There are known issues using ZCS on Macs with the Intel Core Duo. See the Release Note.
Red Hat® Enterprise Linux®, AS/ES version 4. (32-bit, 64-bit)
For clustering, version 4, update 3 is required.
The operating system must be configured as described in this guide.
Note: Max OS X server installs, the following features are not included: attachment indexing/search, view attachments as HTML, clustering.
Note: SUSE server installs, the following features are not included: clustering
In addition to supporting the operating systems listed above for the Network Edition, other OS versions are available for the Open Source Edition. Check the Zimbra Open Source Downloads page on www.zimbra.com.
For Red Hat Enterprise, Fedora Core and SuSE operating systems, the server must also have the following installed:
NPTL. Native POSIX Thread Library
Sudo. Superuser, required to delegate admins.
libidn. For internationalizing domain names in applications (IDNA)
cURL. A command line tool for transferring files with URL syntax
fetchmail. A remote-mail retrieval and forwarding utility used for on-demand TCIP/IP links.
GMP. GNU Multiple-Precision Library.
compat-libstdc ++-33. Compatibility Standard C++ libraries.
NOTE: The 32-bit version of the compat-libstdc rpm package is required for both 32-bit or 64-bit servers.
For Red Hat Enterprise only: compat-libstdc ++-296
SSH client software to transfer and install the Zimbra Collaboration Suite software.
Servers should be configured to run Network Time Protocol (NTP) on a scheduled basis
*These OS configurations have been tested and are known to work. Other configurations may work.
Windows XP with either Internet Explorer 7.0 and 6.0 SP2 or Firefox 1.5.x and 2.0
End User Computers using
Zimbra Web Client
*These OS configurations have been tested and are known to work. Other configurations may work.
Windows XP with either Internet Explorer 7 and 6.0 SP 2 or Firefox 1.5.x and 2.0
End User Computers
Using Other Clients
*These OS configurations have been tested and are known to work. Other configurations may work.
Windows XP with either Outlook Express 6, Outlook 2003 (MAPI), or Thunderbird 1.0.7
 
Migration Wizard for Exchange - Accounts from Microsoft Exchange 2000, 2003 and 5.5 can be migrated to Zimbra Collaboration Suite.
Migration Wizard for Lotus Dominos - Accounts from Lotus Domino 6.0 or later can be migrated to Zimbra Collaboration Suite.
Contents of a .pst file from accounts using Microsoft® Outlook® 2003 can be imported to accounts on the Zimbra server.
 
Rev 6/26/07

System Requirements for Zimbra Collaboration Suite 4.5

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ZCS Multi_Server Installation Guide, Open Source 4.5
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