how to resolve dns

jason.rgd · Post by **jason.rgd** » Mon Jul 19, 2010 7:49 am

We have a lan of 10 workstations ... Our router ip is 10.0.0.1 ...
I get the following error while installing zimbra on my machine....
DNS ERROR resolving leena //-->my hostname...

It is suggested that the hostname be resolveable via DNS

Re-Enter hostname [Yes] LEENA

A Yes/No answer is required

Re-Enter hostname [Yes] yes

Please enter the logical hostname for this host [leena] LEENA

No results returned for A lookup of LEENA

Checked nameservers:

10.0.0.1

DNS ERROR resolving LEENA

It is suggested that the hostname be resolveable via DNS
is it because my machine is not assigned a domain name or some thing of that sort.

phoenix · Post by **phoenix** » Mon Jul 19, 2010 7:56 am

Go to the Split DNS article and follow that.

jason.rgd · Post by **jason.rgd** » Tue Jul 20, 2010 12:32 am

# ./install.sh

hostname: Unknown host

hostname: Unknown host
Operations logged to /tmp/install.log.5125

Checking for existing installation...

zimbra-ldap...NOT FOUND

zimbra-logger...NOT FOUND

zimbra-mta...NOT FOUND

zimbra-snmp...NOT FOUND

zimbra-store...NOT FOUND

zimbra-apache...NOT FOUND

zimbra-spell...NOT FOUND

zimbra-convertd...NOT FOUND

zimbra-memcached...NOT FOUND

zimbra-proxy...NOT FOUND

zimbra-archiving...NOT FOUND

zimbra-cluster...NOT FOUND

zimbra-core...NOT FOUND

PLEASE READ THIS AGREEMENT CAREFULLY BEFORE USING THE SOFTWARE.

ZIMBRA, INC. ("ZIMBRA") WILL ONLY LICENSE THIS SOFTWARE TO YOU IF YOU

FIRST ACCEPT THE TERMS OF THIS AGREEMENT. BY DOWNLOADING OR INSTALLING

THE SOFTWARE, OR USING THE PRODUCT, YOU ARE CONSENTING TO BE BOUND BY

THIS AGREEMENT. IF YOU DO NOT AGREE TO ALL OF THE TERMS OF THIS

AGREEMENT, THEN DO NOT DOWNLOAD, INSTALL OR USE THE PRODUCT.
License Terms for the Zimbra Collaboration Suite:

Zimbra - Zimbra Public End-User License Agreement, Version 2.3

Press Return to continue

ERROR: Installation can not proceeed. Please fix your /etc/hosts file

to contain:

Where is the ip address of the host,

is the FULLY QUALIFIED host name, and

is the (optional) hostname-only portion
delsoft:/home/jason/Desktop/desktop clutter/zcs-6.0.7_GA_2473.DEBIAN5.20100616212143# gedit /etc/hosts
(gedit:5217): GnomeUI-WARNING **: While connecting to session manager:

Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed.

This is after doing the split dns thingy...

phoenix · Post by **phoenix** » Tue Jul 20, 2010 12:49 am

The first thing to mention is that the version of Ubuntu you're using is not, currently, a supported platform you may have problems installing Zimbra on it. The second is that these questions/problems have been discussed ad nauseam in the forums, you will also need a correct and valid /etc/hosts file, read the Quick Start Installation Guide for the format and/or search the forums for further details on what's necessary.

jason.rgd · Post by **jason.rgd** » Tue Jul 20, 2010 1:30 am

using debian 5... not ubuntu.. second thing .. the quick start guide says the os requires certain modifications.. what exactly are these....

phoenix · Post by **phoenix** » Tue Jul 20, 2010 1:32 am

[quote user="jason.rgd"]using debian 5... not ubuntu.. [/QUOTE]Your fourm profile states that you're using Ubuntu 10.04.
[quote user="jason.rgd"]second thing .. the quick start guide says the os requires certain modifications.. what exactly are these....[/QUOTE]It tells you what changes are needed to the /etc/host file, it's the same for all Linux distributions.

jason.rgd · Post by **jason.rgd** » Tue Jul 20, 2010 9:10 am

my bad!!! I changed it to debian 5 with zimbra 6 open source edition... Quite a few problems with zimbra installation!!! Got to probably update my knowledge...

valerys · Post by **valerys** » Wed Jul 21, 2010 11:41 am

Hi every body, i'm trying to install zimbra 6 under RHEL 5 but I have this erro messge :

" DNS ERROR resolving MX for vmmail.baltechnos.com

It is suggested that the domain name have an MX record configured in DNS"
I don't understand the error message. here is my dig command

[root@vmmail ~]# dig any baltechnos.com
; <<>> DiG 9.3.4-P1 <<>> any baltechnos.com

;; global options: printcmd

;; Got answer:

;; ->>HEADER<
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 1
;; QUESTION SECTION:

;baltechnos.com. IN ANY
;; ANSWER SECTION:

baltechnos.com. 86400 IN SOA vmmail.baltechnos.com. root.baltechnos.com. 99967275 21600 3600 604800 86400

baltechnos.com. 86400 IN NS vmmail.baltechnos.com.

baltechnos.com. 86400 IN MX 20 mail.baltechnos.com.

baltechnos.com. 86400 IN A 192.168.1.50
;; ADDITIONAL SECTION:

vmmail.baltechnos.com. 86400 IN A 192.168.1.50
;; Query time: 8 msec

;; SERVER: 127.0.0.1#53(127.0.0.1)

;; WHEN: Sun Jul 18 16:01:53 2010

;; MSG SIZE rcvd: 150

-----------------

[root@vmmail ~]# cat /etc/hosts

# Do not remove the following line, or various programs

# that require network functionality will fail.

127.0.0.1 localhost.localdomain localhost

192.168.1.50 vmmail.baltechnos.com vmmail

::1 localhost6.localdomain6 localhost6
-------------------
[root@vmmail ~]# cat /etc/resolv.conf

search globaltechnos.com

Please help me to solve this problem

jason.rgd · Post by **jason.rgd** » Fri Jul 23, 2010 1:36 am

Here's the actual setup of my network..
My Server PC is behind a Netgear router and our LAN uses the 10.0.0.0 block of private I.P. addresses.
I'm no networking guru but I thought you may need the below information...
I don't have a TLD assigned to my router but a sub domain called sub.example.com ... I've put a CNAME record with my domain registrar to point to another domain provided by dyndns.org since my router has a dynamically assigned IP address... from the router we use port forwarding to point to our server in case of HTTP requests .... Everything works fine till here.. [lamp stack]
After advice on the forums and reading some documentation I reinstalled debian and

made appropriate changes to the etc/hosts file so that the installation proceeds The installation went on fine till it found that no MX record was configured..
DNS ERROR - none of the MX records for delsoft.delian.co.in

resolve to this host

Later I realized the split dns article that was supllied to me in one of the posts. I downloaded bind9 server but wasn't able to configure it... Made some search got this link...

Configuring bind9 in a chroot, lenny version titled Configuring bind9 in a chroot
My questions

Should I configure bind9 as per the above article and then go ahead with the split dns article in zimbra wiki?
Is it ok to not have a actual TLD but a subdomain and what other ports have I to forward to my server..
There was an error related to LDAP as well further down in the installation. and it asked me to run a particular .pl file to finish with the installation.. I guess I'm gonna do this from start all over...
lastly if the system is not touched for a while then a black screen appears and on mouse movement I can't get back to desktop...
is it necessary to install zimbra memcached and zimbra proxy in my case..

17315GWilliams · Post by **17315GWilliams** » Fri Jul 23, 2010 4:38 am

Hi Valerys,
Check the domain name during the installation. Try changing it (when it asks) to "baltechnos.com" instead of "vmmail.baltechnos.com". That should sort out your DNS issue, as it has an MX record according to:

"baltechnos.com. 86400 IN MX 20 mail.baltechnos.com."
If you use "vmmail.baltechnos.com" as the domain name, it will look for an MX record for "vmmail.baltechnos.com" domain.

eg. "vmmail.baltechnos.com. 86400 IN MX 10 mail.vmmail.baltechnos.com."
Hope this helps. All the best.