| -V | display verbose output. | 
| -l | lifetime
              requests  a  ticket  with  the lifetime lifetime.  The value for
              lifetime must be followed immediately by one  of  the  following
              delimiters: 
as  in "kinit -l 90m".  You cannot mix units; a value of `3h30m'
              will result in an error.
              If the -l option is not specified, the default  ticket  lifetime
              (configured by each site) is used.  Specifying a ticket lifetime
              longer than the maximum  ticket  lifetime  (configured  by  each
              site) results in a ticket with the maximum lifetime. s  seconds m  minutesh  hoursd  days | 
| -s start_time | requests  a  postdated  ticket,  valid  starting  at -start_time. Postdated tickets are issued with the invalid flag set, and need to be fed back to the kdc before use. | 
|---|
| -r renewable_life | requests  renewable  tickets,  with  a  total lifetime of -renewable_life.  The duration is in the same format as the -l option, with the same delimiters. | 
| -f | request forwardable tickets. | 
| -F | do not request forwardable tickets. | 
| -p | request proxiable tickets. | 
| -P | do not request proxiable tickets. | 
| -a | request tickets with the local address[es]. | 
  | -A | request address-less tickets. | 
| -k [-t keytab_file] | requests a ticket, obtained from  a  key  in  the  local  host's
              keytab  file.   The  name and location of the keytab file may be
              specified with the   -t keytab_file  option; otherwise the  default
              name  and  location  will  be used.  By default a host ticket is
              requested but any principal may be specified. On a KDC, the special
              keytab  location  KDB:  can be used to indicate that kinit
              should open the KDC database and look up the key directly.  This
              permits an administrator to obtain tickets as any principal that
              supports password-based authentication. | 
| -n | Requests anonymous processing. Two types of anonymous principals
are supported. For fully anonymous Kerberos, configure pkinit on the
KDC and configure  pkinit_anchors in  the  client's
              krb5.conf.   Then use the -n option with a principal of the form
              @REALM (an empty principal name followed by the  at-sign  and  a
              realm  name).  If permitted by the KDC, an anonymous ticket will
              be returned.  A second form of anonymous tickets  is  supported;
              these  realm-exposed tickets hide the identity of the client but
              not the client's realm.  For this mode, use kinit -n with a normal principal name.  If supported by the KDC, the principal (but
              not realm) will be replaced by the anonymous principal.   As  of
              release  1.8, the MIT Kerberos KDC only supports fully anonymous
              operation. | 
  | -T armor_ccache | Specifies the name of a credential cache that already contains a
              ticket.   If  supported  by the KDC, This ccache will be used to
              armor the request so that an attacker would have  to  know  both
              the  key  of  the armor ticket and the key of the principal used
              for authentication in order to attack the request. Armoring also
              makes  sure  that  the  response from the KDC is not modified in
              transit. | 
  | -c cache_name | use cache_name
as the Kerberos 5 credentials (ticket) cache name and location; if this
option is not used, the default cache name and location are used. The
default credentials cache may vary between systems. If the KRB5CCNAME  environment  variable  is  set, its value is used to
              name the default ticket cache.  If a principal name is specified
              and the type of the default credentials cache supports a collection
              (such as the DIR type), an existing cache  containing  credentials
              for  the principal is selected or a new one is created
              and becomes the new primary cache.  Otherwise, any existing contents
              of the default cache are destroyed by kinit. | 
  | -S service_name | specify  an  alternate  service name to use when getting initial
              tickets. | 
 
  | flag_RSA_PROTOCOL[=yes] | specify use of RSA, rather than the default Diffie-Hellman protocol. |