Symas OpenLDAP Knowledge Base

LDAP WhoAmI Tool


ldapwhoami [-n] [-v] [-z] [-d debuglevel] [-D binddn] [-W] [-w passwd] [-y passwdfile] [-H ldapuri] [-h ldaphost] [-p ldapport] [-O security-properties] [-I] [-Q] [-U authcid] [-R realm] [-x] [-X authzid] [-Y mech] [-Z[Z]]


ldapwhoami implements the LDAP “Who Am I?” extended operation. ldapwhoami opens a connection to an LDAP server, binds, and performs a whoami operation.


ldapwhoami -x -D “cn=Manager,dc=example,dc=com” -W


-n Show what would be done, but don’t actually perform the whoami operation. Useful for debugging in conjunction with -v.

-v Run in verbose mode, with many diagnostics written to standard output.

-d debuglevel

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

-x Use simple authentication instead of SASL.

-D binddn

Use the Distinguished Name binddn to bind to the LDAP directory.

-W Prompt for simple authentication. This is used instead of specifying the password on the command line.

-w passwd

Use passwd as the password for simple authentication.

-y passwdfile

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

-H ldapuri

Specify URI(s) referring to the ldap server(s).

-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.

-P 2|3 Specify the LDAP protocol version to use.

-O security-properties

Specify SASL security properties.

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

-Q Enable SASL Quiet mode. Never prompt.

-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: or u:

-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.

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