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SME Server V5.6
Release notes - January 10, 2003
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Copyright (C) 1999-2003 Mitel Networks Corporation
This is an unsupported developer release of the
Mitel Networks SME Server.
MITEL NETWORKS DOES NOT PROVIDE ANY SUPPORT FOR THIS
DEVELOPER RELEASE.
Mitel Networks also sells a commercial release of this
software which has additional features and is fully supported
by Mitel Networks and its resellers. For details on the
commercial release, please visit http://www.mitel.com/6000MAS/
THIS SOFTWARE COMES WITH ABSOLUTELY NO WARRANTY AND IS
PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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Mitel Networks is pleased to announce the availability of version 5.6
of the SME Server. We strongly recommend all users upgrade to this release.
This release is a significant update to improve compatibility with current
server hardware and client operating system releases. The Linux kernel
has been upgraded to the 2.4 kernel series, and the Macintosh, Windows
and IMAP (mail folder access) server applications have been updated to
current releases.
This release uses the "ext3" journalling filesystem for file storage,
greatly improving recovery time after power failure or emergency
shutdown and improving file system reliability. The firewalling code
has been upgraded to include stateful packet inspection. This release
also contains a number of minor updates and corrections.
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Installation
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- To reduce the possibility of confusion, the user is required to
type "install" to initiate a fresh installation and "upgrade" to
initiate a system upgrade. Previously the word "proceed" was required
in each case.
- The disk space reserved for boot support and virtual memory has
been increased to 100MBytes and 256Mbytes respectively.
- The kernel names on the splash screen have changed. Single processor
systems will now display the kernel name "Mitel SME". Multiprocessor
capable systems will now display "Mitel SME smp" (Symmetric
Multiprocessing, the default) and "Mitel SME up" (uniprocessor).
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Upgrades
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- The masquerading of all capablities of the H.323, ICQ and RTSP
protocols is not supported in this release. Supported customers
who require these features should contact smesupport@mitel.com to
determine their availability.
- Upgrades from SME Server 5.0/5.1.x/5.5 are auto-detected. Upgrades
from e-smith 4.1.2 are also auto-detected. Upgrades from previous
e-smith versions are not supported.
- The installer will detect an SME Server system which has not been
correctly shut down prior to upgrading. An upgrade cannot be performed
reliably on such a system. To upgrade in this case:
- Halt the system
- Remove the installation CD
- Start up the existing system normally
- Shut the system down using the "Shutdown" option from the server
console
- Insert the installation CD
- Restart the installation from CD
If a fresh install is desired instead of an upgrade, type "more options"
and select the appropriate choice from the next menu.
- The language and keyboard selection menus are displayed during an
upgrade and the chosen settings override any previously chosen options.
- Existing filesytems from previous SME Server releases are
automatically migrated to use the journalling filesystem.
- Caution should be observed if any custom templates have been created.
Changes in the structure of standard templates between releases can cause
existing custom templates to be inappropriate and to interfere with normal
server function. The recommended strategy is to remove custom templates
before upgrading and then re-apply each custom template if still
applicable.
- The upgrade option no longer re-installs packages which are
already installed, reducing the time taken to perform a system upgrade.
- While supported, upgrades of multiprocessor capable machines result in
very little free space in the boot partition. To provide adequate space
for future system upgrades, we recommend that multiprocessor capable
machines are upgraded by performing a backup, followed by a fresh
install and a restore.
- The hard disk performance optimization configuration setting "hdparm"
has been completely removed due to incompatibilities with some hardware.
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Blades
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- The Blades web panel has been removed from the server manager as we
have chosen to focus all blades-related development on our commercially
supported products. Updates to this developer release will continue
to be made available as downloadable RPMs as they were prior to the
introduction of the blades interface. Commercial customers will
continue to be able to download both updates and additional applications
as software blades.
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Packet filter and masquerading changes
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- The firewalling code has been rewritten to use the Linux iptables
interface, and enables connection tracking to allow stateful packet
filtering.
- All actions which modify firewalling rules now use a new interface
which preserves all existing rules. Previous versions rebuilt and
reloaded all rules when modifications were required.
- Specific protocol modules have been loaded to handle masquerading
of FTP, TFTP and PPTP protocols.
- The masquerading of all capablities of the H.323, ICQ and RTSP
protocols is not supported in this release. Supported customers
who require these features should contact smesupport@mitel.com to
determine their availability.
- The pidentd software which provided responses to IDENT queries
has been replaced by oidentd. oidentd has a flexible mechanism
for specifying IDENT responses and includes support for identifying
netfilter masqueraded connections.
- The iptstate program has been added to the release to provide
a detailed view of masqueraded connections. This software is
currently only available to administrators logged onto the server.
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IMAP server update
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- The IMAP server has been upgraded to version 2001a which provides
many additional features and corrections.
- The IMAP server now supports encrypted connections when negotiated
by the client using the STARTTLS messages. The Webmail and
Groupware applications have been upgraded for this change.
Some mail clients may need to be configured to accept the
self-signed SSL certificate presented by the server or, failing
that, to maintain the connection in cleartext.
- The received time of messages is preserved when messages are
moved between folders.
- Mail folders have been moved from the user's home directory to a
subdirectory "Mail". This move happens automatically on upgrades
and is transparent to IMAP mail clients.
- The mail prefix entry box in Webmail (which defaulted to "Mail")
has been removed.
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Apple Macintosh file sharing support
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- The Macintosh file sharing support has been updated to netatalk
version 1.5.5 which provides greatly improved support for Quark
Express and Adobe Photoshop.
- Macintosh clients are no longer able to connect to the server using
"Clear Text Authentication". Macintosh clients prior to System 7.6
will not be able to connect to the server. Macintosh clients using
System 7.6 and 8.x may need to install an AppleShare Client update
from the Apple website to enable DHX encrypted authentication.
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Windows file sharing support
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- The Windows (SMB/CIFS) file sharing support has been upgraded to
Samba version 2.2.5 which provides improved support for printing
from Windows XP clients and for running Microsoft Access executables
directly from a server share.
- Windows networking opportunistic file locks have been enabled which
provide improved read and write performance.
- Windows XP requires an interoperability patch if domain logins are used.
This patch is made available via the web server, via the URL
"http://servername/server-resources/".
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LDAP data changes
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- The LDAP database is saved to an LDAP interchange format (LDIF) file
whenever the LDAP server is shut down. This data is also backed up
and restored by backup and restore.
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Documentation
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- The User Guide has been split into separate "Administrator
Guide" and "Technician's Handbook" documents. These documents
are available in the Documentation directory of the CD image
in HTML, Windows HTML Help file (CHM) and Adobe Portable
Document Format (PDF) formats. They are available in both
English and French-Canadian.
- All documentation is also available at
http://edocs.mitel.com/
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Corrections
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This release contains all fixes included in 5.5 Upgrade 1 and
5.5 Upgrade 2. It also contains fixes for some other problems:
- Multidrop email collection can now be used in Private Server and
Gateway mode.
- Webmail preferences are preserved across upgrades and other Webmail
initialization issues have been corrected.
- Group membership changes made via the User Accounts panel are
now correctly preserved.
- It is no longer possible to assign a static IP address which
conflicts with the DHCP dynamic address range in the Hostnames
and addresses panel.
- The NTP time synchronization client now uses the recommended source
port for queries (port 123).
- It is now possible to set a "Limit with grace period" without
setting an "Absolute limit" in the Quota Management panel. Some
improvements have also been made to the content of the messages
sent when quotas were exceeded.
- The allocation of software mirrored partitions to disks has been
improved.
There are also other minor corrections, and some clarification of text of
the French Canadian translations. We strongly recommend all users upgrade
to this release.
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Third party package updates
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- All packages directly derived from RedHat Linux have been upgraded
to the RedHat 7.3 version, with applicable updates.
- mailfront has been upgraded to 0.81
- proftpd has been upgraded to 1.2.5
- FreeS/WAN has been upgraded to 1.98b
- Samba has been upgraded to 2.2.5
- netatalk has been upgraded to 1.5.5