problem abt FQDN. help plz

[manjunath]

hello everybody.

i installed FC4 and Zimbra in it. During Zimbra instalation i faced the following problem :

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Installing:
zimbra-core
zimbra-ldap
zimbra-logger
zimbra-mta
zimbra-snmp
zimbra-store
zimbra-apache
zimbra-spell

The system will be modified. Continue? [N] y

Removing /opt/zimbra
Installing packages

zimbra-core......zimbra-core-3.0.1_GA_160.RHEL4-20060216140433.i386.rpm...do ne
zimbra-ldap......zimbra-ldap-3.0.1_GA_160.RHEL4-20060216140433.i386.rpm...do ne
zimbra-logger......zimbra-logger-3.0.1_GA_160.RHEL4-20060216140433.i386.rpm. ..done
zimbra-mta......zimbra-mta-3.0.1_GA_160.RHEL4-20060216140433.i386.rpm...done
zimbra-snmp......zimbra-snmp-3.0.1_GA_160.RHEL4-20060216140433.i386.rpm...do ne
zimbra-store......zimbra-store-3.0.1_GA_160.RHEL4-20060216140433.i386.rpm... done
zimbra-apache......zimbra-apache-3.0.1_GA_160.RHEL4-20060216140433.i386.rpm. ..done
zimbra-spell......zimbra-spell-3.0.1_GA_160.RHEL4-20060216140433.i386.rpm... done
Operations logged to /tmp/zmsetup.log.3937
Setting defaults...No results returned for A lookup of localhost.localdomain
Checked nameservers:
192.168.10.182


DNS ERROR resolving localhost.localdomain
It is suggested that the hostname be resolveable via DNS
Change hostname [Yes] y
Please enter the logical hostname for this host [localhost.localdomain]
No results returned for A lookup of localhost.localdomain
Checked nameservers:
192.168.10.182


DNS ERROR resolving localhost.localdomain
It is suggested that the hostname be resolveable via DNS
Re-Enter hostname [Yes]
Please enter the logical hostname for this host [localhost.localdomain] 192.168. 10.182
No results returned for A lookup of 192.168.10.182
Checked nameservers:
192.168.10.182


DNS ERROR resolving 192.168.10.182
It is suggested that the hostname be resolveable via DNS
Re-Enter hostname [Yes]
Please enter the logical hostname for this host [localhost.localdomain] manjunat h
No results returned for A lookup of manjunath
Checked nameservers:
192.168.10.182


DNS ERROR resolving manjunath
It is suggested that the hostname be resolveable via DNS
Re-Enter hostname [Yes] y
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i came to know that this is due to not have a FQDN for my system. by reading Zimbra document quick_start file, the FQDN shoud be set during the instalation of FC4 which i didn't do. now i want ot know how to get a FQDN and is it nessessary to have a FQDN to run Zimbra correctly and fully,
if so why?

waiting for ur response.......

[KevinH]

You need to configre DNS for you system.

[phoenix]

Yes, you need to have a FQDN set in your hosts file and DNS but you don't need a 'real' domain name unless your mail server is reachable from the internet.

Why? That's because real mail servers are reachable from the internet and need a FQDN, the same rule will also ap[ply to 'home' users and people with domain names that aren't visible to the internet.