Bug#34683: Netgroups are not recognized in /etc/exports, /etc/hosts.allow

[Anatoly Akkerman <akkerman@cs.nyu.edu>]

Package: libc6
Version: 2.1.1-0pre1.3

I am using 2.0.35 slink+potato 

libc6 2.1.1-0pre1.3
netbase 3.12-2
nfs-server 2.2beta37-1
nis  3.3.1-1

I have had the same problem with 
libc6  2.0.7.19981211-6
netbase 3.11-1.2
nfs-server 2.2beta37-1

Netgroups are not recognized in /etc/exports, this leads to not being able
to mount anything from the hosts in the netgroup so I get messages from
mountd about unauthorized access.

Similarly, netgroups are not recognized in /etc/hosts.allow and I get
messages from each daemon using tcp wrappers that access is not allowed.

I have tried using settings in the /etc/nsswitch.conf

netgroup: nis

netgroup: db nis

netgroup: files db nis

none of these helped (I built the db by running make from /var/db)

"ypcat netgroup" works correctly, so it is definitely not NIS problem

>From fiddling around with this, I concluded that it must be a libc
problem. I think it has some relation to the bugs 26306 and 26297. 

Note, another bug that, I think, is present in libc6 2.0.7.19981211-6 +
netbase 3.11-1.2:
 Using hostname pattern matching in /etc/exports does not
work but in the new libc6 2.1.1-0pre1.3 + netbase 3.12-2 it works.
(NFS-server is the same on both setups)

(an example of /etc/exports)

/usr/local	@netgroup(ro)   #does not work
/usr/doc	*.mydomain.com  #works in libc6 2.1.1-0pre1.3 only

This bug really bugs me :)

Thank you for your excellent work.

Debian is the best distribution around, thanks for keeping it this way.

Sincerely,

Anatoly Akkerman.