Re: Re: COPS reporting unrestricted NFS exports under Linux

[era () ucar edu (Ed Arnold)]

Peter Sivo said:

> I honestly don't have a handy document, but I remember reading somewhere
> that depending on how naive your system software is, if someone had
> a '#' mark in the /etc/hosts.equiv or /.rhosts files, I could change
> some records in my DNS maps and rename my machine like so:
>
>      3.100.212.129.in-addr.arpa    IN    PTR       me.foo.com
>
> TO
>
>      3.100.212.129.in-addr.arpa    IN    PTR       #
>
> (something like that)
>
> so that now my machine is renamed '#'.  When your machine sees my machine
> coming in, and looks it up in DNS, it sees that my machine is named '#'
> and since that appears in the /etc/hosts.equiv or /.rhosts, it allows access.

It was my understanding that recent versions of BIND do not allow
characters like '#' in hostnames.  Is Linux delivered with an old
BIND that does?