[Samba] net rpc vampire problems

[Daniel Kasak]

tbey at tbey.com wrote:

>>But if I user lowercase, it works. I wasn't aware of a restriction on
>>creating uppercase usernames. Is this supposed to happen?
>>Anyone else know why my machine accounts aren't getting migrated?
>>Pretty please?
>>    
>>
>
>Dan,
>
>What flavor of Linux are you using.
>
I'm running Gentoo ( current ).

>  I just did a migration using Samba
>3.0 and RedHat ES 3.0.  I ran into the same problem.  That is because
>RedHat does not allow you to create user names with uppercase letters. 
>  
>
I tried the script below. I had to edit out an extra '_' at the end of 
the sed bit. The command works great if I run it myself from a console, 
but when I point the add user script at it, I still get the same 
problem, but only about 50% of the time ... some accounts are getting 
created. However NONE of the machine accounts created let me log into 
the new domain from a PC that was already on the old network - I still 
get the 'this machine's account is missing or the password is wrong' error.

Maybe someone can satisfy my curiosity here...
WTF is supposed to be going on in the machine account creation? The 
adduser script is called ( which in my case doesn't work ). So say I 
have created these machine accounts by hand already. What's next? The 
password bit, right? Can I do this myself too? Where does the machine 
account's password go ... in /etc/shadow? Can I get it from somewhere 
and add it myself?

On a side note, the not-being-able-to-create-uppercase-usernames issues 
needs to be fixed...

Anyway, thanks to those that have helped so far.

>The other problem I had was with group names.  The way I got around it was
>to write my own scripts that change the machine name from upper to lower
>case.  I put the reference in the smb.conf:  add machine script =
>xxxxxx.sh
>
>This is the script:**********************************************
>
>#!/bin/sh
># Script to  add machines
>
>
># Checks to see if a command line argument was passwd
>if [ $# -eq 0 ]
>then
>	echo .
>	echo "Did not pass an argument on the command line"
>	echo "usage: conv.sh \"THIS is a TEST\""
>	echo .
>	exit 0
>fi
>
># Passes the command line argument. Reduces the string length and converts
>to lower case
>
>lower=`echo $1 | sed y/[ABCDEFGHIJKLMNOPQRSTUVWXYZ\
>]/[abcdefghijklmnopqrstuvwxyz\_]/`
>
>#This is the section in which you call the useradd and pass the Unix
>compliant name
>
>/usr/sbin/useradd -g machines -s /sbin/nologin -d /dev/null $lower
>exit 0
>
>************************************************************
>
>  
>
>>It doesn't make any difference if I run the above script or not. The
>>creation of the machine trust account still fails. Interestingly, if I
>>run manually:
>>
>>useradd DKASAK$
>>
>>I get the error:
>>
>>useradd: invalid user name 'DKASAK$'
>>
>>But if I user lowercase, it works. I wasn't aware of a restriction on
>>creating uppercase usernames. Is this supposed to happen?
>>Anyone else know why my machine accounts aren't getting migrated?
>>Pretty please?
>>
>>Dan
>>
>>--
>>Daniel Kasak
>>IT Developer
>>NUS Consulting Group
>>Level 5, 77 Pacific Highway
>>North Sydney, NSW, Australia 2060
>>T: (+61) 2 9922-7676 / F: (+61) 2 9922 7989
>>email: dkasak at nusconsulting.com.au
>>website: http://www.nusconsulting.com.au
>>
>>--
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>>
>>    
>>
>
>  
>


-- 
Daniel Kasak
IT Developer
NUS Consulting Group
Level 5, 77 Pacific Highway
North Sydney, NSW, Australia 2060
T: (+61) 2 9922-7676 / F: (+61) 2 9922 7989
email: dkasak at nusconsulting.com.au
website: http://www.nusconsulting.com.au