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Full Discussion: How to backup a directory (sub-directories/files) files from one server on to other ?
Operating Systems AIX How to backup a directory (sub-directories/files) files from one server on to other ? Post 302954796 by rbatte1 on Friday 11th of September 2015 05:05:07 AM
Old 09-11-2015
You do not need to have PermitRootLogin Yes The forced-commands-only option means that you can only run the commands specified by the matching record in your authorized_keys file. This is from one of mine:-
Code:
command="/usr/local/bin/sysbackup" ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAsNaXL2++..........

This means that you can keep Security happy, because you still prevent login with ssh as root.

I suppose another way would be to use NFS and mount the ServerB directory on ServerA. You then could copy the data much more easily, as though it were a local resource. Do you know how to do this? It's a bit like mapping a network disk in Microsoft terms. This might give you security concerns though, as the data will be available on ServerA (subject to permissions) and you need to be careful with ownership. The files/directories ownership are stored as the UID & GID numbers and that can vary between servers, e.g. a file owned by bob, UID 1024 on ServerB may appear to be owned by sue on ServerA if sue has UID 1024 on ServerA.


Not sure if either of these suggestions helps or causes more headaches.

How do they seem to you?
Robin
This User Gave Thanks to rbatte1 For This Post:
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LEARN ABOUT OPENSOLARIS

nfsmapid

nfsmapid(1M)						  System Administration Commands					      nfsmapid(1M)

NAME

       nfsmapid - NFS user and group id mapping daemon

SYNOPSIS

       /usr/lib/nfs/nfsmapid

DESCRIPTION

       The  nfsmapid  daemon  maps to and from NFS version 4 owner and owner_group identification attributes and local UID and GID numbers used by
       both the NFS version 4 client and server.

       nfsmapid uses the passwd and group entries in the /etc/nsswitch.conf file to direct how it performs the mappings.

       The nfsmapid daemon has no external, customer-accessible interfaces. You can, however, administratively configure nfsmapid in  one  of  the
       following ways:

	   o	  Specify the NFSMAPID_DOMAIN parameter in nfs(4)

	   o	  Specify the _nfsv4idmapdomain DNS resource record.

       Please refer to the  for further details.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWnfscu 		   |
       +-----------------------------+-----------------------------+

SEE ALSO

       svcs(1),  automountd(1M),  groupdel(1M),  groupmod(1M),	mount_nfs(1M),	passmgmt(1M), svcadm(1M), share_nfs(1M), userdel(1M), usermod(1M),
       nfs(4), attributes(5), smf(5)

NOTES

       The nfsmapid service is managed by the service management facility, smf(5), under the service identifier:

	 svc:/network/nfs/mapid

       Administrative actions on this service, such as enabling, disabling, or requesting restart, can be performed  using  svcadm(1M).  The  ser-
       vice's status can be queried using the svcs(1) command.

       If  it is disabled, it will be enabled by mount_nfs(1M), share_nfs(1M), and automountd(1M), unless  its	     application/auto_enable prop-
       erty is set to false.

       nfsmapid caches a user's UID and GID. If a user subsequently changes a UID or GID, using one of the utilities listed  below,  the  nfsmapid
       cache becomes stale. At this point, any NFS operation that gets or set attributes will result in the exchange of this stale information. To
       resolve this situation, restart nfsmapid, as follows:

	 # svcadm restart svc:/network/nfs/mapid:default

       The utilities that allow you to change UID and GID are:

	   o	  usermod(1M)

	   o	  userdel(1M)

	   o	  groupmod(1M)

	   o	  groupdel(1M)

	   o	  passmgmt(1M)

       The nfsmapid daemon might not exist in a future release of Solaris.

SunOS 5.11							    30 Oct 2007 						      nfsmapid(1M)
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