Is it possible to reset administrator password?
 

Dear all, is it possible to reset administrator password on zentyal? please help,
i already try use Grub into recovery mode and also use edit, it is give me same error "Authentication token manipulation error" password unchanged,
fyi my server is setting by one provider and they are reject to recover the password because i forgot the password to login

N/B : i have access to physical server

is there any solution?

Thank you in advance

see the links at the bottom about similar threads:
http://www.linuxquestions.org/questi...ssword-743623/

i am still cant solve it, is there any solution?

fyi, this is my linux Zentyal version

You'll need to boot into single user mode.
or possibly: http://www.google.com/search?q=singl...te:zentyal.org

If you boot into recovery mode you should automatically be logged in as root, so you just have to set a new password for your user withIf that doesn't work please provide the exact error-message(s) you get.

Yes TobiSGD, its automatically direct me to root, but when i typed passws administrator, its give me this error below,
"Authentication token manipulation error"
password unchanged,

is it possible for previous administrator block this access or he protect & forbidden any user to change administrator password? because this server is handled by another administrator before

Thank you in advance

Thank Habitual, reading and find solution now

Check if the filesystem is mounted read only. Also check the permissions on /etc/passwd and /etc/shadow, maybe the immutable bit is set.