01-07-2006
Re: Root User Management.
I just HAD to stick my 2-cents in here. One problem I've seen is a lack of 'terminal servers' with SSH (2) only access. A LOT still use telnet. Telnet and the BSD 'R'-commands should be banned. Another is that nobody sits down with the CEO (president, owner, etc.) and has a discussion about what is the true VALUE of the "stuff" stored on his computer systems. Or the cost to him when these systems are no longer accessible. The goal being to force him/her into a security policy. Which should really limit the "bigshot" access.
The final thing is something an 'old' sysadmin once told me. We were setting root passwords. He grabbed a UNIX book off the shelf, found a chapter or sub-chapter title with six or seven words in it, took the first letter of each word, 'munged' these characters (a=@; l=| e=3, etc.) and stuck the first character of the hostname in front of this string, and the last character of the hostname at the end. He had created 'the same' root password for all machines (easy to remember, especially if you wrote down the chapter title), and at the same time a different root password for EACH machine. I have used this (or a variation) ever since.
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LEARN ABOUT LINUX
dialups
dialups(4) File Formats dialups(4)
NAME
dialups - list of terminal devices requiring a dial-up password
SYNOPSIS
/etc/dialups
DESCRIPTION
dialups is an ASCII file which contains a list of terminal devices that require a dial-up password. A dial-up password is an additional
password required of users who access the computer through a modem or dial-up port. The correct password must be entered before the user
is granted access to the computer. The set of ports that require a dial-up password are listed in the dialups file.
Each entry in the dialups file is a single line of the form:
terminal-device
where
terminal-device The full path name of the terminal device that will require a dial-up password for users accessing the computer
through a modem or dial-up port.
The dialups file should be owned by the root user and the root group. The file should have read and write permissions for the owner (root)
only.
EXAMPLES
Example 1: A sample dialups file.
Here is a sample dialups file:
/dev/term/a
/dev/term/b
/dev/term/c
FILES
/etc/d_passwd dial-up password file
/etc/dialups list of dial-up ports requiring dial-up passwords
SEE ALSO
d_passwd(4)
SunOS 5.10 4 May 1994 dialups(4)