Fosiul, Passwordless SSH, do you mean SSH keys, Kerberos, PKI? They all use very different modules and none related to LDAP. I'm going to assume SSH keys, if LDAP authentication is failing that is because your pam configuration is not correct, make sure pam_ldap.so or pam_sss.so (if you are using SSSD) is in your pam configuration (/etc/pam.d/system-auth-ac). Dan On May 20, 2013, at 10:04 AM, Fosiul Alam <fosiul@xxxxxxxxx> wrote: > Hi > We most use password less ssh authentication and in our /etc/ldap.conf file we have bellow line > > uri ldap://auth1.uk.xxxx.lan/ ldap://auth2.uk.xxxx.lan/ > > Now problem is, if there is any issues auth auth1 , Authentication failes > > Theoretically, if auth1 failes then authentication should come from auth2 > > but why it fails ?? > > we use centos 5.8 > > Any helps will be helpful > > > Thanks > > > -- > 389 users mailing list > 389-users@xxxxxxxxxxxxxxxxxxxxxxx > https://admin.fedoraproject.org/mailman/listinfo/389-users -- 389 users mailing list 389-users@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/389-users