Sync multiple servers

[Greg Matthews]

Oliver Falk wrote:
> Have a look at csync2:
> 
> http://oss.linbit.com/csync2/
> 
> -of
> 
> Julian Field wrote:
>> Read "man rsync" :-)

I use rdist with a config file that provides a few different file groups 
and exceptions, like this:

  ssh-add -l && rdist -P /usr/bin/ssh -f ~/mydistfile mail

where "mail" is a section in ~/mydistfile, a cut down version of which 
looks a bit like this:

# dist file for use with rdist
# usage: rdist -f <thisfile> -P /usr/bin/ssh [target]

HOSTS = ( root at mailserver1 root at mailserver2 )
MAILFILES = ( /etc/mail /etc/MailScanner /etc/sysconfig/RulesDuJour 
/etc/logwatch /var/www/html/mailscanner/docs* )
EXMAIL = ( /etc/mail/localnames /usr/local/bin/mailq.php 
/etc/mail/namelist /etc/mail/logs /etc/mail/saveweek 
/etc/mail/statistics /etc/mail/stats /etc/mail/sendmail.cf* 
/etc/mail/sendmail.mc* /etc/mail/*.db /etc/MailScanner/bayes* 
/etc/mail/curdfile /etc/mail/curdfile.new 
/etc/mail/spamassassin/RulesDuJour/*.cf.* /etc/mail/nosanity 
/etc/mail/*.temporary /etc/mail/warnaliases 
/etc/MailScanner/phishing.safe.sites.conf.old 
/etc/mail/spamassassin/sa-update-keys/* /etc/mail/list/pol-staff-list 
/etc/mail/list/mba-staff-list /etc/mail/list/itss-staff-list 
/etc/mail/extraaliases /etc/mail/access /etc/mail/spamassassin/RulesDuJour )
EXSOFT = ( /local/software/build/* )

mail:
${MAILFILES} -> ${HOSTS}
#       install -owhole,remove /tmp/rdist-test ; # testing
         install -owhole,remove /;
         except ${EXMAIL} ;

the use of ssh-add -l before calling rdist is to check that you have 
added the ssh keys to your agent otherwise you get into a tangle with 
password prompts if you are trying to rdist to more than one host at a time.

I have other sections in mydistfile for syncing other areas (such as the 
software package area containing tar files for current software). Has 
worked great for a few years now.

GREG
-- 
Greg Matthews           01491 692445
Head of UNIX/Linux, iTSS Wallingford

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