Hi, If you need the backup to have correct ownership of the files, rdiff-backup needs to run as root at the backup side. For most installations I know, this is not the case. At the backed-up side however, rdiff-backup usually needs to run as root to have access to all files in the backed-up tree.
For local backup, you could also use the TCP/IP loopback to split backup and backup-up userid's. Regarding your second question: - Does it work when you run `ssh [EMAIL PROTECTED]' when logged in as the backup user? If not, maybe /root/.ssh has wrong permissions? - Do you use the same rsa/dsa key for both backup-server and dns-server? If not, maybe the private or public keys are mixed up? Regards, Maarten On Thu, 19 Jan 2006, Brian C wrote: > Hi, > > I have a backup server running OpenSUSE, call it 'backup-server' and a > dns server running Debian, call it 'dns-server'. They are on the same > subnet. Last night I got rdiff-backup 1.0.4 installed on both so that > backup-server backs up dns-server via a cron job, basically following > the instructions at http://www.howtoforge.com/linux_rdiff_backup. > > However, I cannot similarly get backup-server to backup itself via the > backup user's cron job. Instead I have to let root run the cron job. > Every time the backup user runs rdiff-backup it requests a password > rather than running without requiring interaction. > > Question 1: For a purely local backup such as this, is there any reason > (security concerns, for instance) to prefer that it not run as root, and > instead to have it run as the backup user? > > If the answer to question 1 is yes, then: > > Question 2: Why does rdiff-backup keep asking me for a password, instead > of working without interaction as it does when it backs up dns-server? > What are the things I should check? > > I already looked at /home/backup/.ssh/config and > /root/.ssh/authorized_keys and /etc/ssh/sshd_config and everything looks > just as good as it did for the server that works. > > I also tried the sudoers method described here: > http://www.arctic.org/~dean/rdiff-backup/unattended.html > > and I also get asked for a password by sudo! Aack!?! > > Thanks for any help. > > Brian > > > _______________________________________________ > rdiff-backup-users mailing list at [email protected] > http://lists.nongnu.org/mailman/listinfo/rdiff-backup-users > Wiki URL: http://rdiff-backup.solutionsfirst.com.au/index.php/RdiffBackupWiki > _______________________________________________ rdiff-backup-users mailing list at [email protected] http://lists.nongnu.org/mailman/listinfo/rdiff-backup-users Wiki URL: http://rdiff-backup.solutionsfirst.com.au/index.php/RdiffBackupWiki
