The nfsnobody user and group is listed in the Users and Groups section of a NethServer bound to a central NethServer LDAP directory server. It is not shown in the main LDAP Server.
nfsnobody Anonymous NFS User
The nfsnobody user is present on both systems.
~]# getent passwd
nfsnobody:x:65534:65534:Anonymous NFS User:/var/lib/nfs:/sbin/nologin
Could you post here the list of installed packages?
rpm -qa | sort
How can we reproduce it?
It may come from nfs-utils-1.3.0-0.21.el7_2.1.x86_64 ??
I have reproduce it right now by installing nethserver-backup module on a NethServer bound to a remote LDAP.
The user was listed after a reboot.
The nfsnobody user is retrieved from the local accounts, not from the remote ldap.
Do you need the list of installed packages?
Your report is detailed enough! Thank you!
I’ll try to reproduce it here!
EDIT: confirmed!
I think it’s only an UI issue. As the account provider is remote and “Users and group” page is read-only it should not harm.
What do you think?
Sure, it does no harm. Just felt strange to see a new user coming from nowhere.
It is not a priority. As of now better to spend the time in samba AD, which I consider it can target a broader audience. 
We could fix it by listing nfsnobody inside:
/etc/nethserver/system-users
Would you like to open a PR? Please, open also a bug issue on GitHub!