On Wed, Feb 16, 2011 at 7:28 AM, James Bensley <jwbensley at gmail.com> wrote: > [root at server ~]# su - webdevuser > [webdevuser at server ~]# passwd > Changing password for user webdevuser. > Changing password for webdevuser. > (current) UNIX password: > passwd: Authentication token manipulation error A lot of things can cause this, including a full /var filesystem :/