Zimbra DNS Resolvation error

[Rk_Raj]

Dear all,

I am trying to install ZCS 7.1.0 RHEL5_64 in my CentOS 5.5 64bit with the --platform-override. Everything goes fine until my DNS resolvation.

My hostname is mail.myfriend.co.in and my DNS records are managed by my domain registrar. The A record points to my public IP. and the MX record mail.myfriend.co.in also points to my public IP. I have done port forwarding of port numbers 22, 25, 80, 443, 143, 993, 110, 995, 389, 7025, 194 to my local IP 192.168.2.25.

Here i have attached my installation procedure and the error msg. as a text file (dns-resolvation). and also i here are the entries in my /etc/hosts file and the /etc/resolv.conf file.

cat /etc/hosts

127.0.0.1 localhost.localdomain localhost

123.76.231.54 mail.myfriend.co.in mail

cat /etc/resolv.conf

search myfriend.co.in

nameserver 8.8.8.8

nameserver 8.8.4.4

please look for the error in the attachment and guide me. what is the additional configuration has to be done.

[phoenix]

The answer to this question is all over the forums and the wiki, go to the Split DNS article and follow the instructions there.

[Rk_Raj]

Dear phoenix,

But all my DNS related stuffs are managed by domain provider where i have registered myfriend.co.in.

there i have pointed my A record and MX record to my public IP.

A records:

myfriend.co.in -> public IP
mail.myfriend.co.in -> public IP

MX record

mail.myfriend.co.in -> public IP

[phoenix]

But all my DNS related stuffs are managed by domain provider where i have registered myfriend.co.in.

Go to the article and read the details on why you need it (you're behind a NAT router) then follow those instructions.

[Rk_Raj]

Is it must to configure the DNS with public IP in my local system where I am Installing zimbra ?
Because the DNS management is done by my domain registrar and so that only i have just entered the mx record and my public IP in my /etc/hosts.

[phoenix]

Is it must to configure the DNS with public IP in my local system where I am Installing zimbra ?
Because the DNS management is done by my domain registrar and so that only i have just entered the mx record and my public IP in my /etc/hosts.

No, you don't do that. Go to the wiki article and follow the instructions there, how many times do you want me to tell you the same thing - according to your first post you're behind a NAT router and you will need a Split DNS set-up.

[Rk_Raj]

Please apologise me, I am little confused about the above said wiki article, please please explain me how to setup split DNS in ubuntu 10.04. Now I am trying it in ubuntu 10.04 64bit.

Because there is not only one named.conf file in my system. It has named.conf, named.conf.local, named.conf.orig etc. please guide me configuring the split DNS in ubuntu 10.04 server.

[Rk_Raj]

Also the mail Ids are with someone@mail.myfriend.co.in but it should be like this

someone@myfriend.co.in.

[Rk_Raj]

Dear phoenix,

I have followed this guide
http://wiki.zimbra.com/wiki/Ubuntu_8.04_LTS_Server_(Hardy_Heron)_Install_Guide
and I have configured my mail server. From then I can access my webmail client over the internet but I can't send and receive mail from the other domains like yahoo, gmail etc.

please guide me.

[Rk_Raj]

I found these messages in zimbra log.

May 13 07:10:58 mail postfix/qmgr[3482]: 29E1D3087AD: from=, size=1047, nrcpt=1 (queue active)
May 13 07:11:19 mail postfix/smtp[1780]: connect to passd.com[69.89.31.234]:25: Connection timed out
May 13 07:11:19 mail postfix/smtp[1780]: 29E1D3087AD: to=, relay=none, delay=1174, delays=1153/0.02/21/0, dsn=4.4.1, status=deferred (connect to e-ndicus.com[69.89.31.234]:25: Connection timed out)

May 13 07:07:43 mail postfix/smtp[32575]: A81E93087AC: to=, relay=none, delay=1561, delays=1456/0.02/105/0, dsn=4.4.1, status=deferred (connect to alt4.gmail-smtp-in.l.google.com[209.85.229.27]:25: Connection timed out)

This is because I am unable to send and receive mails from other domains such as gmail, yahoo, my another domain etc.,