Previously, if you enabled pam_ldap account management, all users needed to provide a login password for authentication any time they logged in to the system. Therefore, nonpassword-based logins using tools such as rsh, rlogin, or ssh would fail.Now, however, pam_ldap5, when used with Sun Java System Directory Servers DS5.2p4 and newer releases, enables users to log in with rsh, rlogin, rcp and ssh without giving a password.pam_ldap5 is now modified to do account management and retrieve the account status of users without authenticating to Directory Server as the user logging in. The new control to this on Directory Server is 1.3.6.1.4.1.42.2.27.9.5.8, which is enabled by default.To modify this control for other than default, add Access Control Instructions (ACI) on Directory Server:dn: oid=1.3.6.1.4.1.42.2.27.9.5.8,cn=features,cn=config objectClass: top objectClass: directoryServerFeature oid:1.3.6.1.4.1.42.2.27.9.5.8 cn:Password Policy Account Usable Request Control aci: (targetattr != "aci")(version 3.0; acl "Account Usable"; allow (read, search, compare, proxy) (groupdn = "ldap:///cn=Administrators,cn=config");) creatorsName: cn=server,cn=plugins,cn=config modifiersName: cn=server,cn=plugins,cn=config