Is it possible to deny changing a file's contents even when booting from a LiveCD?
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Is it possible to deny changing a file's contents even when booting from a LiveCD?
Hi,
I am using /etc/security/time.conf to deny a certain user access based on the time of day. This user, however, has knowledge enough to boot the system using a LiveCD, mounting the partition where time.conf resides, and changing it to allow him to login. I a8.m aware that this is a strange circumstance, but it's actually for real. Is there any way to deny changing a file even if the partition is mounted from another distribution (e.g. a LiveCD).
Hi, if the person isn't enough computer savvy to modify file permissions, you might try to remove the "write" permission from the file alltogether. Another option would be filesystem encryption, but I have no experience with it. From what I understand, you can encrypt just one file,one directory, or the whole partition.
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