[cobalt-users] backing-up with rsync+ssh

["kajan" <kajan@xxxxxxxxxxxxxx>]

Hi all,

I am preparing a raq3 server as a back-up server for another raq3 server
using rsync+ssh.

My intention is that if first raq3 server is down I should be able to down
the faulty server, change it IP address & hostname to the backup server so
that the back-up server will become online within some minutes with latest
mails & mail queues.

I thought of synchronizing the following directories:

/root/
/home/
/var/log/
/usr/local/majordomo/

/var/vacation

/var/spool/mail

/var/spool/queue

/usr/admserv

/etc?



1) Is syncronizing the above directories enough ?

   (I only use mail & web services not the DNS or mysql)



2) can I just syncronize home directory which has information about vitual
IP address?

    Will this Virtual IP information transformed to the back-up server &
will there be any conflict of virtual IP address as both

     the servers are going to be online?



3) Can I synchronise the "etc" in the primary directory to "etc1" directory
in the back-up server & when e-mail server is

    down, can rename the "etc1" directory  to "etc" directory?

   (or) Do I have to syncronize certain files (listed below) in the the etc
directory.



     a)etc/passwd

     b)etc/group

     c)etc/shadow

     d)etc/gshadow

     e)etc/aliases

     f)etc/aliases.db

     g)etc/aliases.majordomo

     h)etc/aliases.majordomo.db

     k)etc/virtusertable

     l )etc/virtusertable.db

     m)etc/sendmail.cw

     m)etc/mail/access

     n)etc/mail/access.db

     o)etc/mail/popip.db



     Is there any more files in /etc to be syncronized?



 Anybody is using this method?



 Or is there any better method?





 Thanks in advance.



 Regards



 Kajan