12. LDAP and OpenLDAP
12.1 OpenLDAP hangs after returning results
12.2 LDAP on Windows does authentication wrong?
+ 12.3 LDAP on Windows doesn't work
13. TCP/IP
13.1 --interface for ipv6 binds to unusable IP address
https://github.com/curl/curl/issues/3116
+12.3 LDAP on Windows doesn't work
+
+ A simple curl command line getting "ldap://ldap.forumsys.com" returns an
+ error that says "no memory" !
+
+ https://github.com/curl/curl/issues/4261
+
13. TCP/IP
13.1 --interface for ipv6 binds to unusable IP address