ldap-host-parameters-alist

ldap-host-parameters-alist is a variable defined in `ldap.el'.
Its value is

nil

Documentation:
Alist of host-specific options for LDAP transactions.
The format of each list element is (HOST PROP1 VAL1 PROP2 VAL2 ...).
HOST is the hostname of an LDAP server (with an optional TCP port number
appended to it using a colon as a separator).
PROPn and VALn are property/value pairs describing parameters for the server.
Valid properties include:
`binddn' is the distinguished name of the user to bind as
(in RFC 1779 syntax).
`passwd' is the password to use for simple authentication.
`auth' is the authentication method to use.
Possible values are: `simple', `krbv41' and `krbv42'.
`base' is the base for the search as described in RFC 1779.
`scope' is one of the three symbols `subtree', `base' or `onelevel'.
`deref' is one of the symbols `never', `always', `search' or `find'.
`timelimit' is the timeout limit for the connection in seconds.
`sizelimit' is the maximum number of matches to return.

You can customize this variable.