Synology LDAP server linux and windows setting

To make linux working with Synology LDAP server (not AD server). we can follow steps

apt-get install -y ldap-utils libpam-ldap libnss-ldap nslcd

Then edit /etc/ldap.conf. Some is aready in the file. So just add ip and account

host 192.168.0.2
base dc=synology-wk
uri ldaps://192.168.0.2/
ldap_version 3
binddn
rootbinddn uid=rootuser,cn=users,dc=synology-wk
pam_password md5
nss_initgroups_ignoreusers ajaxterm,amavis,avahi,avahi-autoipd,backup,bin,clamav,colord,couchdb,daemon,dhcp,dovecot,dovenull,festival,games,gdm,gnats,haldaemon,hplip,irc,kernoops,kloglandscape,libuuid,lightdm,list,lp,mail,man,messagebus,mysql,news,nslcd,ntop,ntp,polkituser,postfix,postgrey,proxy,pulse,root,rtkit,saned,speech-dispatcher,sshd,statd,sync,sys,syslog,usbmux,uucp,whoopsie,www-data

vi /etc/nsswitch.conf
passwd:         compat ldap sss
group:          compat ldap sss
shadow:         compat ldap sss
hosts:          files mdns4_minimal [NOTFOUND=return] dns mdns4
networks:       files
protocols:      db files
services:       db files sss
ethers:         db files
rpc:            db files
netgroup:       nis sss
automount:      sss

Note sss is for AD domain, ldap is for synology user. My experience is that you can join both. But user name should not be the same for both systems. 
vi /etc/ldap.secret    (if it is not there, simply create a new one)
put the password of rootuser
chmod 700 /etc/ldap.secret
chown -R root.root /etc/ldap.secret

sudo update-rc.d nslcd enable
sudo /etc/init.d/nscd restart

This should be working.

For windows, to make ldap work, the only solution I found is to download  pGina to install in the windows system. Please find the guidance of pgina 3.1.8