problem with DNS during installation...please help

[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?

[KevinH]

You need a hostname in DNS. So either you need in install DNS or use a hostnam which is in DNS.

[phoenix]

Originally Posted by nihal

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?

There's some instructions on setting up DNS here, you should also make sure that your hosts file is correct.

[nihal]

Hello,
I am not exactly getting how & where i should set a host name,or use a hostname which is already in DNS.I am looking in Network configuration section in FC4 and it's showing me following:
host:localhost.localdomain
primary DNS: 4.2.2.1
secondary DNS:4.2.2.2
DNS search Path: localdomain

I want to install zimbra locally on a single machine.what should I do?

[phoenix]

You need to check your hosts file, it's in /etc/hosts - have a look at Page 9 in the Zimbra Quick Start Installation Guide that tells you the format of the hosts file.

You should also check your DNS configuration is correct, look at the link I posted earlier specifically the second post in that thread.

[nihal]

Hello,
It's working now!!thank you very much.

[phoenix]

Glad it's working, enjoy.

[rrsd]

I was getting very much the same error only with a twist:
I'm setting my zimbra server up in an existing environment that already has DNS, MX records, etc, all set up. It looked like the install script was seeing the hostname of my zimbra server as the domainname - the error looked like this (I've changed the details, but everything was correctly-formatted FQDN info):

DNS ERROR resolving MX for zimbra.foo.example
It is suggested that the domain name have an MX record configured in DNS
Change domain name? [Yes]
Create Domain: [zimbra.foo.example] foo.example

Prior to that, I tried entering rubbish as the domainname, and it correctly let me know that it couldn't find an MX entry for 'sdklfjslfj.sd0vnwe0hf' or whatever I typed. Giving the correct domain name caused the error to go away, but the support person I spoke with on the phone suggested that this is a bad idea for some reason.

OK, what gives? I'm guessing that somewhere in my config (I'm a debian and suse guy - redhat is my least-favorite distro, and therefore I know little about it's internals), I've got an error, but where?
/etc/hosts has a localhost entry and a proper FQDN entry for the zimbra server
/etc/sysconfig/network has a correct HOSTNAME entry
the "domainname" command returns correct info.

Also, it's worth noting that the MX entry for this domain is not and will not be the IP address of the zimbra server - we use a hosted barracuda service for spam and virus hosting, and even when I drop that (ugh, can't happen too soon, believe me), the zimbra server will have an internal IP address and only get inbound traffic through forwarded ports from the firewall.

[phoenix]

Well, my guess would be that perhaps the install script is broken. The domain name is shown with 'hostname -d' and returns the domain name only and 'hostname' returns the FQDN of the server. I haven't been through the install script as I'm fairly new to Linux but you could have a look and see what it does. If it is broken you can file it in bugzilla if you like, check if it's already listed.

[bobby]

so zimbra.foo.example is the hostname? is there an mx record for zimbra.foo.example, i.e. are you planning to host mail for that domain? you don't have to have a mail domain for the hostname if you don't want. otherwise i can't see any problems