@Tohid_Tamboli Welcome among us 
Please, I desire share with everyone your PM message, because it’s really nice!
Thank you I am assuming nethserver to boom boom the worlds most used zentyal!
I am in community because im planning to use nethserver in my office for special reasons:-
1.squid caching
2.windows authentication
3.fileserver
4.owncloud
5.https blocking
6.centos
7.web based