Hello, I have a problem that I'm really having trouble figuring out. I run CentOS Linux 5.5. I have three servers. All have been setup and running with LDAP authentication for a couple years with absolutely no problems. Unfortunately a couple weeks ago, we had a power outage. Ever since, I am having continuous problems with authentication to the server. I see in /var/log/messages nss_ldap: reconnected to LDAP server ldap://127.0.0.1 I did run a yum update that installed an update to ldap, however that did not fix the issue. I have seen a post mentioning changing 'nss_connect_policy persist' to 'nss_connect_policy oneshot'. However I don't see this setting in my server, and again, the server was working perfectly fine for years before the power outage. I'm really thinking that some file got corrupted and I just need to clean it out. Maybe a cache file somewhere? Following is ldap.conf file. Any suggestions? <ldap.conf> base dc=inside,dc=msi timelimit 120 bind_timelimit 120 idle_timelimit 3600 nss_initgroups_ignoreusers root,ldap,named,avahi,haldaemon,dbus,radvd,tomcat,radiusd,news,mailman rootbinddn cn=Manager,dc=inside,dc=msi nss_base_passwd ou=People,dc=inside,dc=msi nss_base_shadow ou=People,dc=inside,dc=msi nss_base_group ou=Group,dc=inside,dc=msi uri ldap://127.0.0.1 ldap://my.domain ssl no tls_cacertdir /etc/openldap/cacerts pam_password md5 </ldap.conf>