Backups

[Iantcho Vassilev]

On 4/1/06, J. Buck Caldwell <freebsd at bitparts.org> wrote:
>
> Unison is your answer. I've been using it to synchronize the data on 20
> branch servers with the big corporate server for backup onto one big
> tape drive every night for the last two years. Email me if you need help
> setting it up.
>
> ports/net/unison
>
> Brian Doherty wrote:
> > Firstly let me say that I'm not sure if this is the right list to post
> to,
> > so if I am incorrect I apologise. Also if there is a better list for me
> to
> > post to, please direct me to it.
> >
> > I have built a redundant freeBSD box for my mail server, and for my
> > webserver, and am putting the redundant boxes in a different geographic
> > location. I am looking for a way to backup the relevant data on the
> current
> > mail and webservers to the new redundant boxes every night. I could use
> scp
> > and do a full backup every night but I remember hearing of a piece of
> bsd
> > software that can compare the two file systems and just copy the
> changes.
> > This would dramatically cut down on the traffic across the link between
> the
> > machines.
> >
> > Is there a tried and trusted method of doing this?
> >
> > BTW I perform backups at the current site onto tape and will continue to
> do
> > so, I may perform tape backup at the new site too. Is this over kill?
> >
> > Brian
> >
> >



Unison is good but it does not preserve the setuid/setguid permissions..
So if this is important maybe use rdiff or rsync?