To enable UScan to work, you have to give it copies of 4 files from the Unix system being reviewed. These files are either simply copied by the system manager for you and fed into the software for review or a fourth file is a created directory listing..

1. The password file

This file is normally called /etc/passwd and looks like this:

root:x:0:1:Superuser:/:
daemon:x:1:1:System daemons:/etc:
bin:x:2:2:Owner of system commands:/bin:
sys:x:3:3:Owner of system files:/usr/sys:
adm:x:4:4:System accounting:/usr/adm:
uucp:x:5:5:UUCP administrator:/usr/lib/uucp:

2. The shadow file

This file is normally called /etc/shadow and looks like this:

acdrm:WxWe0sfymi/J8:9694::
lch:0.vsmJYWoUCx.:9682::
krp:MmOXu5Iyt8fkA:9686::
accwa:DFfv7O3HPguLi:9700::
aod:GwY6jJSZzhQH.:9688::
sad:doeG9VoauA2Pw:9701::

On some operating systems, the location of the shadow file can change. Below are some alternative locations.

BSD4.3-Reno /etc/master.passwd
ConvexOS 10 /etc/shadpw *
HP-UX /.secure/etc/passwd *
OSF/1 /etc/passwd[.dir|.pag] *
Ultrix 4 /etc/auth[.dir|.pag] *
UNICOS /etc/udb *

3. The group file

This file is normally called /etc/group and looks like this:

bin::2:bin,daemon
sys::3:bin,sys,adm
adm::4:adm,daemon,listen
uucp::5:uucp,nuucp
mail::7:
asg::8:asg
network::10:network

4. The directory file

This file does not normally exist on the system and is the one file that has to be created using the ls command. (On a PC this is the dir command.)

First go to the root directory using the command CD . This is the very top level directory. (On a PC it would be CD C:\) Note the . after CD.

Next issue the ls command with extra parameters ls -laRF > DirFile.txt

This command produces a complete directory listing of the system with dates, file sizes and permissions. A sample of this is shown below.

drwxr-xr-x 18 root bin 640 Jul 29 11:31 ./
drwxr-xr-x 18 root bin 640 Jul 29 11:31 ../
-rw------- 1 root other 3 Aug 09 1994 .defprint
-rw------- 1 root other 59 Sep 20 1994 .desked_pref
-r-------- 1 root auth 0 Jul 23 15:54 .lastlogin
-rw------- 1 root root 15 Dec 14 1991 .mailrc
-rwxrwxrwx 1 root root 751 Dec 14 1991 .profile*
-rw-r--r-- 1 root root 833 Mar 21 1994 .utillist2
drwxr-xr-x 2 bin bin 2032 Jan 12 1994 bin/
-r-------- 1 bin bin 77981 Jun 05 1992 boot
drwx------ 2 root other 32 Jan 07 1970 clipdir/

The output of this command is fed into a newly created file called DirFile.txt or any name you choose. The resultant file is copied to the PC for UScan to review and is referred to as the 'directory file'.