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- Path: sparky!uunet!mcsun!uknet!newcastle.ac.uk!turing!ncrr
- From: C.R.Ritson@newcastle.ac.uk (C.R. Ritson)
- Newsgroups: comp.unix.questions
- Subject: Re: dump/rdump in single-user
- Message-ID: <BtBrsG.Etu@newcastle.ac.uk>
- Date: 21 Aug 92 08:33:52 GMT
- References: <32121@adm.brl.mil>
- Organization: University of Newcastle upon Tyne, UK, NE1 7RU
- Lines: 33
- Nntp-Posting-Host: turing
-
- jyacc!dtroxell%aspen@uunet.uu.net (Dan Troxell - SysAdm (NE)) writes:
-
- > '... on a quiescent system.'
-
- >This means you will lose updates to files made after the 'dump' takes it's
- >inode count.
-
- There are cirtain pathological conditions that can cause more
- seriously unusable dump tapes, in rare circumstances. The "quiescent
- system" bit is important. See the following articles:-
-
- "Issues in On-line Backup" Steve Shumway, Sun-Soft.
- "Torture-testing Backup and Archive Programs: Things you ought
- to know but probably would rather not" Elizabeth D Zwicky, SRI
- International.
-
- Both of these were published in the LISA-V proceedings by the Usenix
- association.
-
- >One way around this is to simply distribute the file /etc/nologin to
- >all systems. A check for this file's existence takes place during every
- >login attempt -- if it exists, it displays its text ( like motd ) and boots
- >the user out.
-
- That is fine, but you must also prevent "rsh yourmachine xterm", which
- is how I start all my xterm sessions. You might like to investigate
- stopping or killing inetd too.
-
- Chris Ritson.
- EMAIL: C.R.Ritson@newcastle.ac.uk Chris Ritson,
- PHONE: +44 91 222 8175 Department of Computing Science
- FAX : +44 91 222 8232 University of Newcastle upon Tyne,
- TELEX: uk+53654-UNINEW_G UK, NE1 7RU
-