ldappasswd — change the password of an LDAP entry


ldappasswd [ −V [V] ] [ −d debuglevel ] [−n] [−v] [−A] [ −a oldPasswd ] [ −t oldpasswdfile ] [−S] [ −s newPasswd ] [ −T newpasswdfile ] [−x] [ −D binddn ] [−W] [ −w passwd ] [ −y passwdfile ] [ −H ldapuri ] [ −h ldaphost ] [ −p ldapport ] [ −e [!] ext [=extparam] ] [ −E [!] ext [=extparam] ] [ −o opt [ = optparam ] ] [ −O security−properties ] [−I] [−Q] [−N] [ −U authcid ] [ −R realm ] [ −X authzid ] [ −Y mech ] [ −Z [Z] ] [user]


ldappasswd is a tool to set the password of an LDAP user. ldappasswd uses the LDAPv3 Password Modify (RFC 3062) extended operation.

ldappasswd sets the password of associated with the user [or an optionally specified user]. If the new password is not specified on the command line and the user doesn't enable prompting, the server will be asked to generate a password for the user.

ldappasswd is neither designed nor intended to be a replacement for passwd(1) and should not be installed as such.



Print version info. If −VV is given, only the version information is printed.

−d debuglevel

Set the LDAP debugging level to debuglevel. ldappasswd must be compiled with LDAP_DEBUG defined for this option to have any effect.


Do not set password. (Can be useful when used in conjunction with −v or −d)


Increase the verbosity of output. Can be specified multiple times.


Prompt for old password. This is used instead of specifying the password on the command line.

−a oldPasswd

Set the old password to oldPasswd.

−t oldPasswdFile

Set the old password to the contents of oldPasswdFile.


Prompt for new password. This is used instead of specifying the password on the command line.

−s newPasswd

Set the new password to newPasswd.

−T newPasswdFile

Set the new password to the contents of newPasswdFile.


Use simple authentication instead of SASL.

−D binddn

Use the Distinguished Name binddn to bind to the LDAP directory. For SASL binds, the server is expected to ignore this value.


Prompt for bind password. This is used instead of specifying the password on the command line.

−w passwd

Use passwd as the password to bind with.

−y passwdfile

Use complete contents of passwdfile as the password for simple authentication.

−H ldapuri

Specify URI(s) referring to the ldap server(s); only the protocol/host/port fields are allowed; a list of URI, separated by whitespace or commas is expected.

−h ldaphost

Specify an alternate host on which the ldap server is running. Deprecated in favor of −H.

−p ldapport

Specify an alternate TCP port where the ldap server is listening. Deprecated in favor of −H.

−e [!]ext[=extparam]
−E [!]ext[=extparam]

Specify general extensions with −e and passwd modify extensions with −E. '!' indicates criticality.

General extensions:

  [!]assert=<filter>    (an RFC 4515 Filter)
  !authzid=<authzid>    ("dn:<dn>" or "u:<user>")
  [!]bauthzid           (RFC 3829 authzid control)
  [!]postread[=<attrs>] (a comma-separated attribute list)
  [!]preread[=<attrs>]  (a comma-separated attribute list)
  abandon,cancel,ignore (SIGINT sends abandon/cancel,
  or ignores response; if critical, doesn't wait for SIGINT.
  not really controls)

Passwd Modify extensions:

−o opt[=optparam]]

Specify general options.

General options:

  nettimeout=<timeout>  (in seconds, or "none" or "max")
  ldif-wrap=<width>     (in columns, or "no" for no wrapping)
−O security−properties

Specify SASL security properties.


Enable SASL Interactive mode. Always prompt. Default is to prompt only as needed.


Enable SASL Quiet mode. Never prompt.


Do not use reverse DNS to canonicalize SASL host name.

−U authcid

Specify the authentication ID for SASL bind. The form of the ID depends on the actual SASL mechanism used.

−R realm

Specify the realm of authentication ID for SASL bind. The form of the realm depends on the actual SASL mechanism used.

−X authzid

Specify the requested authorization ID for SASL bind. authzid must be one of the following formats: dn:<distinguished name> or u: <username>.

−Y mech

Specify the SASL mechanism to be used for authentication. If it's not specified, the program will choose the best mechanism the server knows.


Issue StartTLS (Transport Layer Security) extended operation. If you use −ZZ, the command will require the operation to be successful


ldap_sasl_bind(3), ldap_extended_operation(3), ldap_start_tls_s(3)


The OpenLDAP Project <>


OpenLDAP Software is developed and maintained by The OpenLDAP Project <>. OpenLDAP Software is derived from University of Michigan LDAP 3.3 Release.

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