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>>> And if I pull, none of my backed-up systems are secure because anyone |
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>>> who breaks into the backup server has root read privileges on every |
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>>> backed-up system and will thereby "gain full root privileges quickly." |
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>> |
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>> IMO that depends on whether you also backup the authentication-related |
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>> files or not. Exclude them from backup, ensure different root passwords |
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>> for all boxes, and now you can limit the infiltration. |
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> |
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> If you're pulling to the backup server, that backup server has to be |
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> able to log in to and read all files on the other servers. Including |
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> e.g. your swap partition and device files. |
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|
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What if I have each system save a copy of everything to be backed up |
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from its own filesystem in a separate directory and change the |
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ownership of everything in that directory so it can be read by an |
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unprivileged backup user? Then I could have the backup server pull |
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that copy from each system without giving it root access to each |
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system. Can I somehow have the correct ownerships for the backup |
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saved in a separate file for use during a restore? |
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- Grant |
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