(Kerberos Setup) Pre-Auth failed/GSS-API ERROR

saial · 10-20-2010, 06:04 PM

I'm setting up kerberos and I can't login with kadmin but I am getting tickets with kinit, my princs are valid, and my dns resolves with dig/ping, am I missing something?:

kadmin:

Code:

home-plug:/home/steven# kadmin
Authenticating as principal root/admin@SOUR-LAN.LOCAL with password.
Password for root/admin@SOUR-LAN.LOCAL: 
kadmin: GSS-API (or Kerberos) error while initializing kadmin interface

auth.log

Code:

Oct 20 22:18:13 home-plug kadmind[8935]: Seeding random number generator
Oct 20 22:18:20 home-plug krb5kdc[8778]: Interrupted system call - while selecting for network input(1)
Oct 20 22:18:20 home-plug krb5kdc[8778]: shutting down
Oct 20 22:18:20 home-plug krb5kdc[8939]: setting up network...
Oct 20 22:18:20 home-plug krb5kdc[8939]: skipping unrecognized local address family 17
Oct 20 22:18:20 home-plug krb5kdc[8939]: skipping unrecognized local address family 17
Oct 20 22:18:20 home-plug krb5kdc[8939]: listening on fd 7: udp 10.66.1.95.88
Oct 20 22:18:20 home-plug krb5kdc[8939]: listening on fd 8: udp 10.66.1.95.750
Oct 20 22:18:20 home-plug krb5kdc[8939]: listening on fd 9: udp fe80::50:43ff:fe10:7f1d%eth0.88
Oct 20 22:18:20 home-plug krb5kdc[8939]: listening on fd 10: udp fe80::50:43ff:fe10:7f1d%eth0.750
Oct 20 22:18:20 home-plug krb5kdc[8939]: set up 4 sockets
Oct 20 22:18:20 home-plug krb5kdc[8940]: commencing operation
Oct 20 22:18:20 home-plug krb524d[8943]: No dictionary file specified, continuing without one.
Oct 20 22:18:20 home-plug krb524d[8943]: service entry `krb524' not found, using 4444
Oct 20 22:18:30 home-plug krb5kdc[8940]: AS_REQ (7 etypes {18 17 16 23 1 3 2}) 10.66.1.95: NEEDED_PREAUTH: steven@HOME-LAN.LOCAL for kadmin/home-plug.home-lan.local@HOME-LAN.LOCAL, Additional pre-authentication required
Oct 20 22:18:33 home-plug krb5kdc[8940]: AS_REQ (7 etypes {18 17 16 23 1 3 2}) 10.66.1.95: ISSUE: authtime 1287613113, etypes {rep=18 tkt=18 ses=18}, steven@HOME-LAN.LOCAL for kadmin/home-plug.home-lan.local@HOME-LAN.LOCAL
Oct 20 22:21:25 home-plug krb5kdc[8940]: AS_REQ (7 etypes {18 17 16 23 1 3 2}) 10.66.1.95: NEEDED_PREAUTH: root/admin@HOME-LAN.LOCAL for krbtgt/HOME-LAN.LOCAL@HOME-LAN.LOCAL, Additional pre-authentication required
Oct 20 22:21:28 home-plug krb5kdc[8940]: AS_REQ (7 etypes {18 17 16 23 1 3 2}) 10.66.1.95: ISSUE: authtime 1287613288, etypes {rep=18 tkt=18 ses=18}, root/admin@HOME-LAN.LOCAL for krbtgt/HOME-LAN.LOCAL@HOME-LAN.LOCAL
Oct 20 22:21:41 home-plug krb5kdc[8940]: AS_REQ (7 etypes {18 17 16 23 1 3 2}) 10.66.1.95: NEEDED_PREAUTH: root/admin@HOME-LAN.LOCAL for kadmin/home-plug.home-lan.local@HOME-LAN.LOCAL, Additional pre-authentication required
Oct 20 22:21:45 home-plug krb5kdc[8940]: AS_REQ (7 etypes {18 17 16 23 1 3 2}) 10.66.1.95: ISSUE: authtime 1287613305, etypes {rep=18 tkt=18 ses=18}, root/admin@HOME-LAN.LOCAL for kadmin/home-plug.home-lan.local@HOME-LAN.LOCAL

krb5.conf

Code:

[libdefaults]
    default_realm = HOME-LAN.LOCAL

# The following krb5.conf variables are only for MIT Kerberos.
    krb4_config = /etc/krb.conf
    krb4_realms = /etc/krb.realms
    kdc_timesync = 1
    ccache_type = 4
    forwardable = true
    proxiable = true

# The following encryption type specification will be used by MIT Kerberos
# if uncommented.  In general, the defaults in the MIT Kerberos code are
# correct and overriding these specifications only serves to disable new
# encryption types as they are added, creating interoperability problems.
#
# Thie only time when you might need to uncomment these lines and change
# the enctypes is if you have local software that will break on ticket
# caches containing ticket encryption types it doesn't know about (such as
# old versions of Sun Java).

#    default_tgs_enctypes = des3-hmac-sha1
#    default_tkt_enctypes = des3-hmac-sha1
#    permitted_enctypes = des3-hmac-sha1

# The following libdefaults parameters are only for Heimdal Kerberos.
    v4_instance_resolve = false
    v4_name_convert = {
        host = {
            rcmd = host
            ftp = ftp
        }
        plain = {
            something = something-else
        }
    }
    fcc-mit-ticketflags = true

[realms]
    HOME-LAN.LOCAL = {
        kdc = home-plug.home-lan.local
        admin_server = home-plug.home-lan.local
    }
    ATHENA.MIT.EDU = {
        kdc = kerberos.mit.edu:88
        kdc = kerberos-1.mit.edu:88
        kdc = kerberos-2.mit.edu:88
        admin_server = kerberos.mit.edu
        default_domain = mit.edu
    }
    MEDIA-LAB.MIT.EDU = {
        kdc = kerberos.media.mit.edu
        admin_server = kerberos.media.mit.edu
    }
    ZONE.MIT.EDU = {
        kdc = casio.mit.edu
        kdc = seiko.mit.edu
        admin_server = casio.mit.edu
    }
    MOOF.MIT.EDU = {
        kdc = three-headed-dogcow.mit.edu:88
        kdc = three-headed-dogcow-1.mit.edu:88
        admin_server = three-headed-dogcow.mit.edu
    }
    CSAIL.MIT.EDU = {
        kdc = kerberos-1.csail.mit.edu
        kdc = kerberos-2.csail.mit.edu
        admin_server = kerberos.csail.mit.edu
        default_domain = csail.mit.edu
        krb524_server = krb524.csail.mit.edu
    }
    IHTFP.ORG = {
        kdc = kerberos.ihtfp.org
        admin_server = kerberos.ihtfp.org
    }
    GNU.ORG = {
        kdc = kerberos.gnu.org
        kdc = kerberos-2.gnu.org
        kdc = kerberos-3.gnu.org
        admin_server = kerberos.gnu.org
    }
    1TS.ORG = {
        kdc = kerberos.1ts.org
        admin_server = kerberos.1ts.org
    }
    GRATUITOUS.ORG = {
        kdc = kerberos.gratuitous.org
        admin_server = kerberos.gratuitous.org
    }
    DOOMCOM.ORG = {
        kdc = kerberos.doomcom.org
        admin_server = kerberos.doomcom.org
    }
    ANDREW.CMU.EDU = {
        kdc = vice28.fs.andrew.cmu.edu
        kdc = vice2.fs.andrew.cmu.edu
        kdc = vice11.fs.andrew.cmu.edu
        kdc = vice12.fs.andrew.cmu.edu
        admin_server = vice28.fs.andrew.cmu.edu
        default_domain = andrew.cmu.edu
    }
    CS.CMU.EDU = {
        kdc = kerberos.cs.cmu.edu
        kdc = kerberos-2.srv.cs.cmu.edu
        admin_server = kerberos.cs.cmu.edu
    }
    DEMENTIA.ORG = {
        kdc = kerberos.dementia.org
        kdc = kerberos2.dementia.org
        admin_server = kerberos.dementia.org
    }
    stanford.edu = {
        kdc = krb5auth1.stanford.edu
        kdc = krb5auth2.stanford.edu
        kdc = krb5auth3.stanford.edu
        master_kdc = krb5auth1.stanford.edu
        admin_server = krb5-admin.stanford.edu
        default_domain = stanford.edu
    }

[domain_realm]
    .home-lan.local = HOME-LAN.LOCAL
    home-lan.local = HOME-LAN.LOCAL
    .home-plug.home-lan.local = HOME-LAN.LOCAL
    home-plug.home-lan.local = HOME-LAN.LOCAL
    .local = HOME-LAN.LOCAL
    .mit.edu = ATHENA.MIT.EDU
    mit.edu = ATHENA.MIT.EDU
    .media.mit.edu = MEDIA-LAB.MIT.EDU
    media.mit.edu = MEDIA-LAB.MIT.EDU
    .csail.mit.edu = CSAIL.MIT.EDU
    csail.mit.edu = CSAIL.MIT.EDU
    .whoi.edu = ATHENA.MIT.EDU
    whoi.edu = ATHENA.MIT.EDU
    .stanford.edu = stanford.edu
    .slac.stanford.edu = SLAC.STANFORD.EDU

[login]
    krb4_convert = true
    krb4_get_tickets = false

saial · 10-21-2010, 09:49 AM

I've disabled pre-auth, but I still don't understand why it was failing and I'd like to use it. Anybody know what I'm doing wrong here?