[root@server5 secureshare]# klist -k
Keytab name: FILE:/etc/krb5.keytab
KVNO Principal
---- --------------------------------------------------------------------------
   3 host/server5.example.com@EXAMPLE.COM
   3 host/server5.example.com@EXAMPLE.COM
   3 nfs/server5.example.com@EXAMPLE.COM
   3 nfs/server5.example.com@EXAMPLE.COM
[root@server5 secureshare]# klist -l
Principal name                 Cache name
--------------                 ----------
admin@EXAMPLE.COM              KEYRING:persistent:0:0

[root@server6 ~]# klist -k
Keytab name: FILE:/etc/krb5.keytab
KVNO Principal
---- --------------------------------------------------------------------------
   4 host/server6.example.com@EXAMPLE.COM
   4 host/server6.example.com@EXAMPLE.COM
   3 nfs/server6.example.com@EXAMPLE.COM
   3 nfs/server6.example.com@EXAMPLE.COM
[root@server6 ~]# klist -l
Principal name                 Cache name
--------------                 ----------
host/server6.example.com@EXAMP KEYRING:persistent:0:krb_ccache_9N4UHQt (Expired)
admin@EXAMPLE.COM              KEYRING:persistent:0:krb_ccache_h4clFv7
[root@server6 ~]# ntpq -p
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
*labipa.example. 139.59.50.38     3 u   56  128  177    0.316  -773.02  31.477
 LOCAL(0)        .LOCL.           5 l  266   64  360    0.000    0.000   0.000

Mar 08 13:53:07 labipa.example.com krb5kdc[2322](info): AS_REQ (8 etypes {18 17 20 19 16 23 25 26}) 192.168.4.151: NEEDED_PREAUTH: host/server6.example.com@EXAMPLE.COM for krbtgt/EXAMPLE.COM@EXAMPLE.COM, Additional pre-authentication required