Go Back   HowtoForge Forums | HowtoForge - Linux Howtos and Tutorials > ISPConfig 3 > Installation/Configuration

Do you like HowtoForge? Please consider supporting us by becoming a subscriber.
Thread Tools Display Modes
Old 30th March 2009, 17:39
DHDSP DHDSP is offline
Junior Member
Join Date: May 2008
Posts: 11
Thanks: 2
Thanked 0 Times in 0 Posts
Default Migration from Courier, virtual users

Hi everyone !

after ISPC3 has become stable I will be migrating a couple of old servers to a vmware machine running Lenny and hopefully ISPC3. My "old" server has courier-imap and courier-smtp running.

The old server uses courier "userdb" as the auth file for strictly virtual email users. Can I use this file directly (like in authmodulelist), or can I use the info in the userdb file to generate ISPC3 users another way ? How do I get to see the userdb users in ISPC3 ?

The password is hashed by the userdbpw command (from AWK script):
system("echo "$6" | userdbpw | userdb "$5"/"$4"@"$5" set systempw")
system("echo "$6" | userdbpw -hmac-md5| userdb "$5"/"$4"@"$5" set hmac-md5pw")

The userdb textfile looks somthing like this:
testfirstname.testlastname@testdom.de home=/home/virtmail/testdom.de/testfirstname.testlastname|systempw=aUPc11AXjmoKU| hmac-md5pw=fee57ed3951660332759a9f50712c65bc6a444bcc3aa be559e5830b842a11d41|gid=1001|uid=1001

Any Ideas would be greatly appreciated, informing 1000 users by plain mail is not really an option.


PS: A pointer to how ISPC3 implements virtual users would also be great.
Reply With Quote
Sponsored Links
Old 30th March 2009, 20:09
till till is offline
Super Moderator
Join Date: Apr 2005
Location: Lneburg, Germany
Posts: 37,045
Thanks: 841
Thanked 5,661 Times in 4,468 Posts

ISPConfig implements virtual users in a mysql database with crypt password hashes. Your password hashes are not compatible and I guess it is not possible to migrate your system without generating new passwords.
Till Brehm
Get ISPConfig support and the ISPConfig 3 manual from ispconfig.org.
Reply With Quote
The Following User Says Thank You to till For This Useful Post:
DHDSP (31st March 2009)
Old 31st March 2009, 13:05
DHDSP DHDSP is offline
Junior Member
Join Date: May 2008
Posts: 11
Thanks: 2
Thanked 0 Times in 0 Posts

Thanks for the answer.

Now userdbpw is also used in my setup to set the "system pw" for courier, as in my previous post:

"echo "$6" | userdbpw | userdb "$5"/"$4"@"$5" set systempw"

A quick look in the sourcecode (I'm not a real programmer) tells me the crypt funtion is used to generate the "system pw" if no md5 or hmac is used.

like here:

tail userdbpw.c (from the courier authlib source)


printf("%s\n", crypt(buf, salt));
return (0);

now I'm not really sure if the "HAVE_CRYPT" means that userdbpw is called without the option md5 or hmac - but i suppose so.

Wouldn't these encrypted passwords then be usable? Or am I missing something ?

Reply With Quote


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
Cacti and ISPConfig: Monitoring Tool VMartins Tips/Tricks/Mods 11 9th August 2008 19:37
Junk mail and spamassassin... sthompson Installation/Configuration 4 27th December 2006 17:11
Virtual Users And Domains With Postfix, Courier And MySQL [+ procmail ?] immobilia HOWTO-Related Questions 5 30th June 2006 00:20
Virtual Users And Domains With Postfix, Courier And MySQL - "apt-get" and Courier burritonator HOWTO-Related Questions 3 15th March 2006 21:11
Another Problem: Virtual Users And Domains With Postfix, Courier And MySQL (+ SMTP bluegrass Installation/Configuration 24 8th March 2006 02:41

All times are GMT +2. The time now is 12:19.

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