Need help on "net ads join" fails when we have "%" in the username - 2nd Try........

Lokeshbabu Haribabu -X (lharibab - HCL TECHNOLOGIES LIMITED at Cisco) lharibab at
Mon Aug 31 15:37:22 UTC 2015

Hi Rowland,

Microsoft 2008 server allows you create username with % in it. I was working on bug to support special characters in domain name.


-----Original Message-----
From: samba-technical [mailto:samba-technical-bounces at] On Behalf Of Rowland Penny
Sent: Monday, August 31, 2015 8:56 PM
To: samba-technical
Subject: Re: Need help on "net ads join" fails when we have "%" in the username - 2nd Try........

On 31/08/15 16:07, Richard Sharpe wrote:
> On Mon, Aug 31, 2015 at 4:07 AM, Rowland Penny <repenny241155 at> wrote:
>> I do not think it will, I think the username/password will get 
>> expanded to 'test%user%password' and it will be read as the user test 
>> with a password of user%password or just user.
>> I would never use '%' in a username, samba & windows both use it as a 
>> delimiter, but if you must use it, then this *may* work:
>> net ads join -U test\%user%password
> Unfortunately, that won't work. The shell is not doing the delimiter 
> separation. So, the net command will see two '%' chars and will 
> separate on the first.
> What is needed is a change to the net command code.
> Unfortunately, it is hard to tell customers that they are stupid.
> If the OP cares to he can look at the code in source3/utils/net.c 
> around line 992 in the current master and he can see the parsing of 
> the -U parameter. It is pretty simple and could be modified to handle, 
> say \% as not a delimiter.
> However, in bash/sh you would have to use \\% or enclose the string in 
> single quotes.
> Another approach might be to allow the specification of a different 
> delimiter, like, say + or ^ etc.
> Ahhh, the power of open source software.

When I posted, I really didn't think it would work, but I have never been stupid enough to use something in a username that I know is a delimiter used by Samba and windows. If the OP is willing to take a bit of advice, I would advise him to stop using stupid things in usernames. :-)


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