Quoting Leo Pascua <[EMAIL PROTECTED]>:
> how change the password of root Redhat 6.0 since the guy who
> installed
> is on leave....
There are several ways to "Backdoor":
1. For RH Linux on Intel, you can use an emergency disk to boot to
a ramdisk rootfs, then mount your usual harddisk rootfs on /mnt
then edit /mnt/etc/shadow by removing the root password field.
Make sure you are not connected to the Net when you reboot,
because then root can log in without a password.
2. For RH Linux on DEC 2000 which can not boot to an emergency disk,
you can use an emergency CD to boot to a ramdisk rootfs, and proceed
as in 1 above.
3. For Digital Unix on DEC machines, you need to go to the SRM
and boot single user. On single user mode, no password is asked but
root / is mounted readonly. Remount / read-write and edit
/etc/passwd using "ed", since "vi" is usually not available when only /
is mounted.
4. One of the best ways is to prepare for this ahead of time:
Tweak lilo.conf the SysV init system (/etc/rc.d/init.d/single)
so that when you go single user no password is asked from root.
Then when you reboot, at the Lilo prompt, type "linux single"
PMana
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