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lock root shell
I need to lock the root shell to stop access to local harddisks. I know, that all passwords are disabled by default.
Can I enable them, especially the root password, when remastering knoppix?
passwd doesnt help because it creates a password for root, but doesnt lock su or the root shell.
Please help me.
Mikkey
uuups, I forgot. The remastered knoppix with passwords enabled should run from cd.
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I'm guessing here but I would chroot to the uncompressed knoppix, set a root password and also remove sudoers file or edit it. Then remaster; the new burned CD should then not allow su, login as root or sudo unless you know the root password so make it long and difficult. I don't know if there is anything during startup where user knoppix needs su permissions so I think that should work.
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Senior Member
registered user
Try removing sudo from your remaster. kdesu and gksu both insist on having passwords.
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Thanks a lot. I try it and tell you.
Mikkey
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Sorry, it doesnt work, because kde doesnt start anymore.
Any suggestions how to lock the root shell and to enable a root password?
Mikkey
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Juppiii
it works. Thanks a lot, mzilikazi and Steve F.
First I chroot to the uncompressed knoppix and set a password for root.
Then I removed only sudo from the uncompressed knoppix and remastered it. KDE starts, the root shell is locked, the applications I tested are working.
Only a usb memory stick isnt recogniced any more but that doesnt matter.
Mikkey
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Aaaargh.
Three root shells / terminals are still open if you press Ctrl-Alt-F2 to F4 in kde.
Any suggestions how to lock them?
Mikkey
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Ya, that should be an easy fix. Those shells are started up from /etc/inittab . My knoppix CD inittab has lines like these:
1:12345:respawn:/bin/bash -login >/dev/tty1 2>&1 </dev/tty1
2:2345:respawn:/bin/bash -login >/dev/tty2 2>&1 </dev/tty2
3:2345:respawn:/bin/bash -login >/dev/tty3 2>&1 </dev/tty3
4:2345:respawn:/bin/bash -login >/dev/tty4 2>&1 </dev/tty4
The HD install inittab is like this:
1:12345:respawn:/sbin/getty 38400 tty1
2:2345:respawn:/sbin/getty 38400 tty2
3:2345:respawn:/sbin/getty 38400 tty3
4:2345:respawn:/sbin/getty 38400 tty4
5:2345:respawn:/sbin/getty 38400 tty5
6:2345:respawn:/sbin/getty 38400 tty6
You can comment most of them out with '#' at the beginning of the line or remove them completly. I would leave the first one in (HD version) case you need to login. Since it is getty, your user could only do things within the premission set of their login.
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Thank you, Steve F.
I tried it and it worked.
Great.
Mikkey
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