ZCS Multi-Server Installation Guide 8.0
ZCS Multi-Server Installation Guide 8.0
Open Source Edition


Multiple-Server Installation > Final Set-Up

Final Set-Up
After the Zimbra servers are configured in a multi-node configuration, the following functions must be configured:
*
In order for remote management and postfix queue management, the ssh keys must be manually populated on each server.
*
If logger is installed, set up the syslog configuration files on each server to enable server statistics to display on the administration console, and then enable the logger monitor host. The server statistics includes information about the message count, message volume, and anti-spam and anti-virus activity.
*
ZCS ships a default zimbra user with a disabled password. ZCS requires access to this account via ssh public key authentication. On most operating systems this combination is okay, but if you have modified pam rules to disallow any ssh access to disabled accounts then you must define a password for the zimbra UNIX account. This will allow ssh key authentication for checking remote queues. See the Zimbra wiki article, Mail Queue Monitoring.
Set Up the SSH Keys
To populate the ssh keys, on each server, as Zimbra user (su - zimbra). Type zmupdateauthkeys and press Enter. The key is updated on
/opt/zimbra/.ssh/authorized_keys.
Enabling Server Statistics Display
In order for the server statistics to display on the administration console, the syslog configuration files must be modified.
Important: Depending on your operating system, the steps below may not be correct. See your operating system documentation for specific information about how to enable syslog.
1.
On each server, as root, type /opt/zimbra/libexec/zmsyslogsetup. This enables the server to display statistics.
2.
On the logger monitor host, you must enable either syslog or rsyslog to log statistics from remote machines:
For syslog:
a.
Edit the /etc/sysconfig/syslog file, add -r to the SYSLOGD_OPTIONS setting, SYSLOGD_options=”-r -m 0”
b.
Stop the syslog daemon. Type /etc/init.d/syslog stop
c.
Start the syslog daemon. Type /etc/init.d/syslog start
For syslog on Debian or Ubuntu:
a.
Edit the /etc/default/syslogd file, add -r to the SYSLOGD_OPTIONS setting, SYSLOGD_options=”-r -m 0”
b.
Stop the syslog daemon. Type /etc/init.d/sysklogd stop
c.
Start the syslog daemon. Type /etc/init.d/sysklogd start
For rsyslog:
a.
$modload imudp
$UDPServerRun 514
b.
Copyright © 2012 VMware Inc.