[nihal]

Hello,
I am a new user & trying to install zimbra open source edition locally on Fedora core 4 on a single machine. I am getting problem with providing DNS hostname. basically,I am getting the following stack:

zimbra-core......zimbra-core-3.0.0_GA_156.FC4-20060206095649.i386.rpm...done
zimbra-ldap......zimbra-ldap-3.0.0_GA_156.FC4-20060206095649.i386.rpm...done
zimbra-logger......zimbra-logger-3.0.0_GA_156.FC4-20060206095649.i386.rpm...done
zimbra-mta......zimbra-mta-3.0.0_GA_156.FC4-20060206095649.i386.rpm...done
zimbra-snmp......zimbra-snmp-3.0.0_GA_156.FC4-20060206095649.i386.rpm...done
zimbra-store......zimbra-store-3.0.0_GA_156.FC4-20060206095649.i386.rpm...done
zimbra-apache......zimbra-apache-3.0.0_GA_156.FC4-20060206095649.i386.rpm...done
zimbra-spell......zimbra-spell-3.0.0_GA_156.FC4-20060206095649.i386.rpm...done
Operations logged to /tmp/zmsetup.log.12985
Setting defaults...No results returned for A lookup of localhost.localdomain
Checked nameservers:
4.2.2.1
4.2.2.2


DNS ERROR resolving localhost.localdomain
It is suggested that the hostname be resolveable via DNS
Change hostname [Yes] yes
Please enter the logical hostname for this host [localhost.localdomain]


can anyone please suggest me what I should do?