[Samba] valid charcters in trust password

[Andreas Moroder]

Hello,

we tried to create a trust between a samba 3.4.3 and win 2008. It did 
not work an we lost two days before we discovered that it did not work 
because we had a $ in the password.

Is there documentation about what characters are valid in a password for 
a trust account ?

Thanks
Andreas