I have implemented LDAP over ssl. FQDN of LDAP server is "platalytics.com" and same is CN in the SSL certificate. But why is it so that when i run following command it works fine i.e.,

ldapsearch -x -D "cn=aneela,ou=users,dc=platalytics,dc=com" -W -H ldap://127.0.0.1:389 -b "dc=platalytics,dc=com" -s sub 'cn=aneela'

but in case of ldaps, i have to provide FQDN as the hostname i.e.,

ldapsearch -x -D "cn=aneela,ou=users,dc=platalytics,dc=com" -W -H ldaps://platalytics.com:636 -b "dc=platalytics,dc=com" -s sub 'cn=aneela'

because following command does not work i.e.,

ldapsearch -x -D "cn=aneela,ou=users,dc=platalytics,dc=com" -W -H ldaps://127.0.0.1:636 -b "dc=platalytics,dc=com" -s sub 'cn=aneela'