Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!samsung!uunet!mcsun!ukc!axion!delluk!tim From: tim@dell.co.uk (Tim Wright) Newsgroups: comp.unix.sysv386 Subject: Re: Remote permissions for NFS backup Message-ID: Date: 4 Mar 91 10:39:24 GMT References: <1991Feb25.191542.29887@eecs.wsu.edu> <1991Feb28.204247.7270@chinet.chi.il.us> Sender: usenet@delluk.uucp (Usenet posting login) Organization: Dell Computer Corp., Bracknell, UK Lines: 27 In <1991Feb28.204247.7270@chinet.chi.il.us> les@chinet.chi.il.us (Leslie Mikesell) writes: >In article <1991Feb25.191542.29887@eecs.wsu.edu> swetik@eecs.wsu.edu (Paul Swetik) writes: >>Having recently installed ISC (via Dell) NFS, I have not been able >>to backup files cleanly across the net. Is there a clean way to >>gain read permission for root on a client machine to backup NFS >>mounted 'read owner' files to the client tape drive? ... instructions to use rsh/remsh deleted ... >The disadvantage of this approach is that you must make the backups >separately per machine instead of slurping an entire network through >the NFS mounts. The advantage is that it maintains the file system >view as well as the security of the client machines. There is another serious advantage to this approach. Due to the behaviour of find, you will generate a lot less network traffic doing all the 'stat()s' on the machine to be backed up and just sending a "cpio stream" over the network. You don't need afio (though it is nice), just # rsh othermachine 'find / -print | cpio -ocB' | dd ibs=20b obs=64b of=mytape Tim -- Tim Wright, Dell Computer Corp., Bracknell | Domain: tim@dell.co.uk Berkshire, UK, RG12 1RW. Tel: +44-344-860456 | Uucp: ...!ukc!delluk!tim Nobody ever said I was charming before. They said, "Rimmer, you're a total git" - Red Dwarf, "Camille".