<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div> Hi folks, During migration existing Kerberos/LDAP setup clients to IPA, after 'ipa-client-install' command is run and reports successful migration, we found that the client fails to talk with IPA server. The symptom is: in the /var/log/messages file at IPA client side, we can see the following entries: Apr 30 11:07:04 ldapclient02 sssd: Starting up Apr 30 11:07:05 ldapclient02 sssd[be[pegaclouds.com]]: Starting up Apr 30 11:07:06 ldapclient02 sssd[pam]: Starting up Apr 30 11:07:06 ldapclient02 sssd[nss]: Starting up Apr 30 11:07:06 ldapclient02 [sssd[ldap_child[2133]]]: Failed to initialize credentials using keytab [(null)]: Decrypt integrity check failed. Unable to create GSSAPI-encrypted LDAP connection. It is figured out that, instead of backup and overwrite /etc/krb5.keytab, ipa-client-install only appends the new generated host keytab entries to the same file /etc/krb5.keytab. Then when the original entries have a higher KVNO version than the newly generated siblings, the latter is shadowed and ignored. After manual removing the old entries from /etc/krb5.keytab with the tool ktutil (rkt, delent, wkt), the client immdiately connects to IPA server and problem goes away. It will be greatly appreciated if native ipa-rmkeytab can be extended to do the same job. Thanks. --David </div></div></body></html>