Eric "Shubes" wrote:
Roxanne Sandesara wrote:
Currently, on my qmail-toaster box, I have a single set of users set up
as a single domain, with multiple aliased domains so that mail to
<any_user>@<any_of_our_domains> will reach that user. However, the
default domain that all of this is tied to needs to change from what it
is current set to be, to that of one of the aliased domains. (In Other
Words: everything is set up on <domain1.com>; I need <domain1.com> to
become an alias, while <domain8.com> from the list of aliased domains
will become the default and primary domain identity.)
Thus far, in my search, I have found the table in the vpopmail database
whose name will need to be changed; in addition, the path for each user
will need to change, both in the database table and in the filesystem,
to use the new default domain name. Looks like there's an entry in
dir_control that will need to be changed; the values in the 'domain'
column in lastauth; the values in the 'domain' column in valias, and the
@<domain> part of each valias_line value. Obviously, I will need to
rename the server within Linux to properly identify itself as
mail.<domain8.com> rather than mail.<domain1.com>. I've also found the
following files in /var/qmail/control that I believe will need to be
changed:
defaultdomain
defaulthost
me
plusdomain
rcpthosts
smtpgreeting
virtualdomains
Now, having given this rundown, here comes my questions:
1) Does anyone know of anything I've missed, in the above, that I need
to make sure to catch for this to go semi-smoothly.
You'll also need to take care of the contents of /var/qmail/users/. While
you can manually edit the assign file, re-creating the cdb is a bit tricky.
If I remember correctly, you might need to add and remove a dummy domain to
get this cdb rebuilt.
qmail-newu takes care of that for you
qmail-newu reads the assignments in /var/qmail/users/assign and writes
them into /var/qmail/users/cdb in a binary format suited for
quick access by qmail-lspawn.
qmail-newmrh is also a nice command if you manually add domaisn to
morercpthosts
qmail-newmrh reads the instructions in /var/qmail/control/morercpthosts
and writes them into /var/qmail/control/morercpthosts.cdb in
a binary format suited for quick access by qmail-smtpd.
I use those command on a very regular basis, adding domains to our multi
smtp scanners
Just passign the infos :)
2) Is there an easier way of doing this that I am missing?
I'd consider removing the alias domain and adding it back in normally (using
vpopmail/bin commands). Then add users in the normal (qmail-admin) fashion.
That might not be feasible if you have 100's of users though.
This would be a lot safer than modifying the sql database manually. That
thing scares me a bit. There are bitmapped flags contained in one the fields
(gid, I think) that aren't readily apparent. In addition, the tables are all
ISAM, so be sure to have mysql backups (like from the qtp-backup script)
before you change anything there.
3) Is this likely enough to hose my server that I should build it up
from scratch (after a proper backup, naturally)?
I don't think you need to go that far (unless you really hose things).
4) Am I correct that I should also get my reverse DNS records changed so
that the IP for the server comes back with the new domain name?
I believe so, but I'm not certain of this.
5) Will this mess up the SSL key, requiring me to buy another one? (I
don't really mind doing so, but I want to make sure of all my steps and
preparations before I do this, as this is a live server in production,
and I really can't afford for it to be down for untold hours.)
I believe so, but I'm not certain of this.
I really want to make sure I have this planned out and prepped ahead of
time. As stated, this is my live server in production. I don't have
another box that I can bring up, configure from scratch, and just slip
into place, so I need to get this right the first time.
Roxanne
Sounds like you have a good start.
You might want to let the list know when you intend to do the cutover, so
help can be ready. Also, remember the #QmailToaster IRC channel. ;)
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