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Full Discussion: hw to reterive root passwd
Top Forums UNIX for Dummies Questions & Answers hw to reterive root passwd Post 302146863 by porter on Thursday 22nd of November 2007 03:00:18 PM
Old 11-22-2007
You have to

(a) restrict the BIOS options for what the machine can boot from, eg only from first harddisk and password protect the BIOS

(b) put the machine in a locked room or cupboard

unless you encrypt the drive you can always remove the drive from that machine and put it in another machine to do the same thing.

Of course once you do that you will be posting a message saying how do you reset the BIOS password or asking where you put the key for your cupboard.
 

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RPC.YPPASSWDD(8)					    BSD System Manager's Manual 					  RPC.YPPASSWDD(8)

NAME
rpc.yppasswdd -- NIS update password file daemon SYNOPSIS
rpc.yppasswdd [-d directory] [-noshell] [-nogecos] [-nopw] [-m arg1 [arg2 ...]] DESCRIPTION
rpc.yppasswdd must be running on the NIS master server to allow users to change information in the password file. The options are as follows: -d directory Change the root directory of the password file from ``/'' to directory. It is important to create the binary database files (pwd.db and spwd.db) when using this switch or the password change will fail. The databases need to be created only once with the following command: pwd_mkdb -d directory directory/etc/master.passwd -noshell Don't allow changes of the shell field in the passwd file. -nogecos Don't allow changes of the gecos field in the passwd file. -nopw Don't allow changes of the password in the passwd file. -m arg1 [arg2 ...] Additional arguments to pass to make in /var/yp. FILES
/etc/passwd /etc/master.passwd SEE ALSO
chpass(1), passwd(1), hosts_access(5), nis(8), ypbind(8), ypserv(8) AUTHORS
Mats O Jansson <moj@stacken.kth.se> BSD
February 26, 2005 BSD
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