[CentOS] How insecure is NIS ? Possible alternatives ?

Mon Mar 26 08:46:58 UTC 2018
Clint Dilks <clint.dilks at waikato.ac.nz>

On Mon, Mar 26, 2018 at 9:07 PM, Nicolas Kovacs <info at microlinux.fr> wrote:

> Hi,
> In the past I've setup simple centralized authentication with NIS and
> NFS, without bothering about possible security implications.
> Over the next month I have to setup a new network in a local school, and
> I wonder if I should use NIS/NFS. I still have my own documentation,
> it's simple and somewhat bone-headed to setup, and it just works.
> RHEL/CentOS 7 still provide NIS, and I vaguely wonder how exactly it is
> insecure. So I thought I'd simply ask on this list.
> I know there's FreeIPA available. I gave it a spin some time ago on a
> local machine, but I think it's a bit overkill.
Hi, as you why it is insecure the biggest reason is that it is trivial for
a user to get sensitive information about other users.  Particularly things
like password hashes, and with the compute power available today cracking a
hash is not impractical.
It also discourages some of the more standard practices today like user
private groups.

It would still take a fair amount of work but if you want something a
little less than FreeIPA or integrating with AD look into

> Anyone here who uses central authentication (CentOS server + CentOS
> clients) ? Any suggestions ?
> Cheers,
> Niki
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