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ipa-join(1)			IPA Manual Pages		     ipa-join(1)

NAME
     ipa-join  -  Join	a  machine to an IPA realm and get a keytab for the host
     service principal

SYNOPSIS
     ipa-join [-d|--debug] [-q|--quiet] [-u|--unenroll] [-h|--hostname hostname]
     [-s|--server  hostname]  [-k|--keytab  filename]	[-w|--bindpw   password]
     [-b|--basedn basedn] [-?|--help] [--usage]

DESCRIPTION
     Joins  a  host to an IPA realm and retrieves a kerberos keytab for the host
     service principal, or unenrolls an enrolled host from an IPA server.

     Kerberos keytabs are used for services (like sshd) to perform kerberos  au-
     thentication.  A  keytab is a file with one or more secrets (or keys) for a
     kerberos principal.

     The ipa-join command will create  and  retrieve  a  service  principal  for
     host/foo.example.com@EXAMPLE.COM	 and	place	it   by   default   into
     /etc/krb5.keytab. The location can be overridden with the -k option.

     The IPA server to contact is set in /etc/ipa/default.conf	by  default  and
     can be overridden using the -s,--server option.

     In  order to join the machine needs to be authenticated. This can happen in
     one of two ways:

     * Authenticate using the current kerberos principal

     * Provide a password to authenticate with

     If a client host has already been joined to the IPA realm the ipa-join com-
     mand will fail. The host will need to be removed from the server using `ipa
     host-del FQDN` in order to join the client to the realm.

     This command is normally executed by the ipa-client-install command as part
     of the enrollment process.

     The reverse is unenrollment. Unenrolling a host removes the Kerberos key on
     the IPA server. This prepares the host to be  re-enrolled.  This  uses  the
     host  principal  stored in /etc/krb5.conf to authenticate to the IPA server
     to perform the unenrollment.

     Please note, that while the ipa-join option removes the client from the do-
     main, it does not actually uninstall the client or properly remove  all  of
     the  IPA-related  configuration.  The  only  way to uninstall a client com-
     pletely  is  to  use  ipa-client-install  --uninstall  (see  ipa-client-in-
     stall(1)).

OPTIONS
     -h,--hostname hostname
	    The  hostname  of  this server (FQDN). By default the canonical name
	    from getaddrinfo(3) for gethostname(2) is used.

     -s,--server server
	    The hostname of the IPA server (FQDN). Note that by default there is
	    no /etc/ipa/default.conf, in most cases it needs to be supplied.

     -k,--keytab keytab-file
	    The keytab file where to append the new key (will be created  if  it
	    does not exist). Default: /etc/krb5.keytab

     -w,--bindpw password
	    The  password  to  use  if not using Kerberos to authenticate. Use a
	    password of this particular host (one time password created  on  IPA
	    server)

     -b,--basedn basedn
	    The  basedn  of the IPA server (of the form dc=example,dc=com). This
	    is only needed when not using Kerberos to authenticate and anonymous
	    binds are disallowed in the IPA LDAP server.

     -f,--force
	    Force enrolling the host even if host entry exists.

     -u,--unenroll
	    Unenroll this host from the IPA server. No keytab entry  is  removed
	    in the process (see ipa-rmkeytab(1)).

     -q,--quiet
	    Quiet mode. Only errors are displayed.

     -d,--debug
	    Print the raw RPC output in GSSAPI mode.

EXAMPLES
     Join IPA domain and retrieve a keytab with kerberos credentials.

       # kinit admin
       # ipa-join

     Join IPA domain and retrieve a keytab using a one-time password.

       # ipa-join -w secret123

     Join IPA domain and save the keytab in another location.

       # ipa-join -k /tmp/host.keytab

EXIT STATUS
     The exit status is 0 on success, nonzero on error.

     0 Success

     1 Kerberos context initialization failed

     2 Incorrect usage

     3 Out of memory

     4 Invalid service principal name

     5 No Kerberos credentials cache

     6 No Kerberos principal and no bind DN and password

     7 Failed to open keytab

     8 Failed to create key material

     9 Setting keytab failed

     10 Bind password required when using a bind DN

     11 Failed to add key to keytab

     12 Failed to close keytab

     13 Host is already enrolled

     14 LDAP failure

     15 Incorrect bulk password

     16 Host name must be fully-qualified

     17 RPC fault

     18 Principal not found in host entry

     19 Unable to generate Kerberos credentials cache

     20 Unenrollment result not in RPC response

     21 Failed to get default Kerberos realm

     22 Unable to auto-detect fully-qualified hostname

SEE ALSO
     ipa-rmkeytab(1) ipa-client-install(1)

IPA				   Oct 8 2009			     ipa-join(1)

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