Package: libpam-krb5
Version: 2.6-1
Severity: normal

Removing my guest-user from /etc/shadow and
making all the pam-changes as stated in
/usr/share/doc/libpam-krb5/README.Debian
gives me:

[EMAIL PROTECTED]:~$ su guest
Password: 
su: Authentication service cannot retrieve authentication info.
Sorry.
[EMAIL PROTECTED]:~$

local syslog:

calvin su[5997]: pam_acct_mgmt: Authentication service cannot retrieve 
authentication info.

On the kerberos server:

gw krb5kdc[6574]: AS_REQ (7 etypes {18 17 16 23 1 3 2}) 192.168.0.10:
NEEDED_PREAUTH: [EMAIL PROTECTED] for krbtgt/[EMAIL PROTECTED], Additional 
pre-authentication
required
gw krb5kdc[6574]: AS_REQ (7 etypes {18 17 16 23 1 3 2}) 192.168.0.10: ISSUE: 
authtime 1195849946, etypes {rep=16 tkt=16 ses=16}, [EMAIL PROTECTED] for 
krbtgt/[EMAIL PROTECTED]

However, changing /etc/pam.d/common-account to

    account  sufficient pam_krb5.so minimum_uid=1000
    account  required   pam_unix.so

makes su and all other pam-services work (ssh, login, etc.)

My understanding is that kerberos-authentication should replace
local authentication or am I getting this all wrong?

At least a few words explaining that would be helpful for
admins new to kerberos and pam ;-)

Thanx!

-- System Information:
Debian Release: 4.0
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-5-k7
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)

Versions of packages libpam-krb5 depends on:
ii  krb5-con 1.16                            Configuration files for Kerberos V
ii  libc6    2.3.6.ds1-13etch2               GNU C Library: Shared libraries
ii  libcomer 1.39+1.40-WIP-2006.11.14+dfsg-2 common error description library
ii  libkrb53 1.4.4-7etch4                    MIT Kerberos runtime libraries
ii  libpam0g 0.79-4                          Pluggable Authentication Modules l

libpam-krb5 recommends no packages.

-- no debconf information



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