How to make mailing-list with ezmlm and qmail-ldap

["sato x" <gladiol4@gmail.com>]

Hi all,

Does anybody know how to make mailing list with ezmlm? I've read a README that said

  ezmlm lets users set up their own mailing lists within qmail's address
  hierarchy. A user, Joe, types  
      ezmlm-make ~/SOS ~/.qmail-sos joe-sos isp.net

but I was confused about:
  1. Where should I create the directory (~/SOS) 
  2. From which directory should I run the ezmlm-make? My ezmlm was installed in /usr/local/bin/ezmlm
  3. What was the ~/.qmail-sos file?
  4. Who should own the dir (~/SOS) directory
  5. IS there something to do with the ldap server?

I know this is not the right place to ask about ezmlm, but I bet some
of you have already been using ezmlm with qmail-ldap for years. Thank
you in advance for helping me.

Regards,

sato