1. TLS/SSL : This shows if LDAP query is made on DC with secured connection or not as SSL/TLS is secured level protocol. The value will be either "YES" or "NO".
2. Signseal : This was used till 7.0.1. From 7.0.2, this has been replaced with 2 new terminology : "Simple Bind" & "Kerberos". This is a kind of authentication protocol.
** If Sign/Seal event(till 7.0.1) detail on LDAP events is "Green", we now(From 7.0.2 onward) display as 'Kerberos' instead.
** If both SSL\TLS and Sign/Seal is red(7.0.1), we now(From 7.0.2) display "Simple Bind".
In conclusion, this shows if the LDAP query was made on secured way or not (SSL/TLS) and type of authentication( Simple bind / Kerberos). Kerberos and Simple bind is exclusive to each other.