Go Back   HowtoForge Forums | HowtoForge - Linux Howtos and Tutorials > Linux Forums > Server Operation

Do you like HowtoForge? Please consider supporting us by becoming a subscriber.
Reply
 
Thread Tools Display Modes
  #1  
Old 28th March 2009, 18:41
atjensen11 atjensen11 is offline
Senior Member
 
Join Date: Dec 2007
Posts: 199
Thanks: 9
Thanked 6 Times in 6 Posts
Default Migrating Production Server to Lenny and ISPConfig3

Over a year ago, I put together my current production server. It was largely an exercise in learning Linux. With a lot of trial and error, this machine has been working quite nicely for about 18 months.

That server was assembled using several excellent How To's on this site which I am very grateful. Since putting that server into production, I have acquired newer and better hardware, learned more about RAID, LVM and Xen.

This new machine is now ready for production which is where my new questions arise. I plan on having a Xen DomU machine be the new production server which I plan to run Debian Lenny and ISPConfig3 on it.

I have two public IP addresses. The current production server is currently on one of the public IP addresses. My provider handles the reverse DNS entries for my IP addresses. Currently, they are both set to [sanitized] mail.example.com. Just for the record, it is not really example.com, but rather my actual domain name.

The new server will reside on the other public IP address. For some period of time, both will be in existence and will need to coexist. I am not really concerned about any of the other server functions other than email during the switch.

My current production email server has a local hostname that is not made public through DNS. Postfix was configured to use the same FQDN as the reverse DNS entry at my ISP.

Can I install ISPConfig in a similar manner where the machine FQDN is different than the FQDN used by Postfix? Or should I build the new DomU (and all services) with the FQDN that is associated with the reverse DNS entry? Should I have my ISP change the reverse DNS entry for the second public IP address to be something unique and different from the other address?
Reply With Quote
Sponsored Links
  #2  
Old 29th March 2009, 21:14
falko falko is offline
Super Moderator
 
Join Date: Apr 2005
Location: Lüneburg, Germany
Posts: 41,701
Thanks: 1,900
Thanked 2,735 Times in 2,571 Posts
Default

Quote:
Originally Posted by atjensen11 View Post
Should I have my ISP change the reverse DNS entry for the second public IP address to be something unique and different from the other address?
That's what I recommend.
__________________
Falko
--
Download the ISPConfig 3 Manual! | Check out the ISPConfig 3 Billing Module!

FB: http://www.facebook.com/howtoforge

nginx-Webhosting: Timme Hosting | Follow me on:
Reply With Quote
  #3  
Old 30th March 2009, 01:32
atjensen11 atjensen11 is offline
Senior Member
 
Join Date: Dec 2007
Posts: 199
Thanks: 9
Thanked 6 Times in 6 Posts
Default

Falko,

I had pretty much decided that was the route I would take. However, I plan on using the public IP address that I have as a gateway for several servers, especially considering that ISPConfig3 now manages several servers.

When configuring the reverse DNS, would you recommend using the FQDN of the email server? Or should I use a setup similar to what I used before where the mailname was different than the machine hostname?

I don't want to make things more difficult than they need to be.
Reply With Quote
  #4  
Old 30th March 2009, 13:59
falko falko is offline
Super Moderator
 
Join Date: Apr 2005
Location: Lüneburg, Germany
Posts: 41,701
Thanks: 1,900
Thanked 2,735 Times in 2,571 Posts
Default

Quote:
Originally Posted by atjensen11 View Post
When configuring the reverse DNS, would you recommend using the FQDN of the email server? Or should I use a setup similar to what I used before where the mailname was different than the machine hostname?
Doesn't matter. All that matters is that the reverse record points to a hostname which in turn points to the correct IP.
__________________
Falko
--
Download the ISPConfig 3 Manual! | Check out the ISPConfig 3 Billing Module!

FB: http://www.facebook.com/howtoforge

nginx-Webhosting: Timme Hosting | Follow me on:
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Perfect Server Debian Lenny jcombs_31 HOWTO-Related Questions 3 18th February 2009 20:38


All times are GMT +2. The time now is 21:29.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.