Adding local users / passwords on Kerberized Linux box
- by Brian
Right now if I try to add a non-system user not in the university's Kerberos realm I am prompted for a Kerberos password anyway. Obviously there is no password to be entered, so I just press enter and see:
passwd: Authentication token manipulation error
passwd: password unchanged
Typing passwd newuser has the same issue with the same message.
I tried using pwconv in the hopes that only a shadow entry was needed, but it changed nothing.
I want to be able to add a local user not in the realm and give them a local password without being bothered about Kerberos.
I am on Ubuntu 10.04. Here are my /etc/pam.d/common-* files (the defaults that Ubuntu's pam-auth-update package generates):
account
# here are the per-package modules (the "Primary" block)
account [success=1 new_authtok_reqd=done default=ignore] pam_unix.so
# here's the fallback if no module succeeds
account requisite pam_deny.so
# prime the stack with a positive return value if there isn't one already;
# this avoids us returning an error just because nothing sets a success code
# since the modules above will each just jump around
account required pam_permit.so
# and here are more per-package modules (the "Additional" block)
account required pam_krb5.so minimum_uid=1000
# end of pam-auth-update config
auth
# here are the per-package modules (the "Primary" block)
auth [success=2 default=ignore] pam_krb5.so minimum_uid=1000
auth [success=1 default=ignore] pam_unix.so nullok_secure try_first_pass
# here's the fallback if no module succeeds
auth requisite pam_deny.so
# prime the stack with a positive return value if there isn't one already;
# this avoids us returning an error just because nothing sets a success code
# since the modules above will each just jump around
auth required pam_permit.so
# and here are more per-package modules (the "Additional" block)
# end of pam-auth-update config
password
# here are the per-package modules (the "Primary" block)
password requisite pam_krb5.so minimum_uid=1000
password [success=1 default=ignore] pam_unix.so obscure use_authtok try_first_pass sha512
# here's the fallback if no module succeeds
password requisite pam_deny.so
# prime the stack with a positive return value if there isn't one already;
# this avoids us returning an error just because nothing sets a success code
# since the modules above will each just jump around
password required pam_permit.so
# and here are more per-package modules (the "Additional" block)
# end of pam-auth-update config
session
# here are the per-package modules (the "Primary" block)
session [default=1] pam_permit.so
# here's the fallback if no module succeeds
session requisite pam_deny.so
# prime the stack with a positive return value if there isn't one already;
# this avoids us returning an error just because nothing sets a success code
# since the modules above will each just jump around
session required pam_permit.so
# and here are more per-package modules (the "Additional" block)
session optional pam_krb5.so minimum_uid=1000
session required pam_unix.so
# end of pam-auth-update config
