How to manage root<-->root rsync keeping permissions?
L A Walsh
rsync at tlinx.org
Sat Aug 7 09:56:33 UTC 2021
On 2021/08/03 07:09, Chris Green via rsync wrote:
> I already have an rsync daemon server running elsewhere, I can add
> this requirement to that I think. Thank you.
It seems to me, a safer bet would be to generate an ssh-cert
that allows a passwdless login from your sys to the remote.
Then "export RSYNC_RSH=ssh" on your source before running
rsync (as root).
I don't use an rsyncd on the remote. Try it in some sub-dir first.
Don't cross fs boundaries, so like I use flags (for xfs->xfs) like:
rsync -auvxHAXOW --del /usr/local/fonts/ remotesys:/usr/local/fonts/
pathnames are finicky. While
this pair works:
aa/dir/ (->) bb/dir/
and I think this one does:
there are more that aren't reliable but may work occasionally
(like work 1st time, but not 2nd...). Some examples:
then do your rsync as normal run rsync as root to the remote as normal.
Passwordless ssh logins are used where remote root and
remote-passworded logins are forbidden, since with a strong
key, there is no password to crack. Since you may not want
remote login directly to root, you might prohibit use of passwords
for root (forcing use of a secure key).
There can be many caveats, so try on smaller, backed up fs's first...
If you have room, transfer to a tmpdir then move into place.
More information about the rsync