Date: Sun, 16 Jan 2000 12:32:34 +0100 From: Sascha Schumann <sascha@schumann.cx> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: The Hermit Hacker <scrappy@hub.org>, Rod Taylor <rod@zort.on.ca>, freebsd-current@FreeBSD.ORG Subject: Re: Thoughts... Message-ID: <20000116123233.A2861@schumann.cx> In-Reply-To: <200001160526.VAA02919@apollo.backplane.com>; from dillon@apollo.backplane.com on Sat, Jan 15, 2000 at 09:26:08PM -0800 References: <Pine.BSF.4.21.0001150228310.46499-100000@thelab.hub.org> <200001160526.VAA02919@apollo.backplane.com>
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On Sat, Jan 15, 2000 at 09:26:08PM -0800, Matthew Dillon wrote: > > :> > :> There are lots of ways of syncing up that do not require sending the > :> entire image over the network every time. Syncing is something you could > :> do with an NFS mount quite easily, combined with something like cpdup > :> (see /usr/ports/sysutils/cpdup). > : > :we use rdist on our network to keep our production servers in sync...we > :tend to avoid 'nfs traffic' as much as possible... > : > :Marc G. Fournier ICQ#7615664 IRC Nick: Scrappy > > I've never trusted rdist for exact mirroring. I remember trying to use > it at BEST and it not getting everything right, though I can't remember > exactly what it didn't get right... probably things like devices and > hardlinks. I wound up taking the 'stat' hit and having the clients > scan the disk hierarchy for changes, and making sure the NFS server > could handle it. But you do not have to do things that way -- for example, > the server could keep track of the changes itself and send a list to > the client which the client then copies via NFS. There is also rsync which can push/pull data, handles devices and hard links correctly and which also works through ssh. Especially the latter is a nice feature, because I had to do some live mirroring once over untrusted networks. Getting secure file transfering to work was quite easy using ssh/rsync. Hardcore rdist users will miss the flexibility of their rdist.conf, but most applications can be implemented through some clever shell scripting. -- Regards, Sascha Schumann Consultant To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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