/etc/resolv.conf entry

[Franky_1]

Hello together,

i have to add a new domain to the search string in /etc/resolv.conf for several machines. Is it possible to do this in one "central" place (e.g. NIS) or do i have to change it on every single host?

Thx in advance

Regards

Franky

[Victor BERRIDGE]

Is it possible to do this in one "central" place (e.g. NIS) or do i have to change it on every single host?
No except with NIS and I would not use NIS just for that...
There is an alternative: do a man of rdist and give it a try...

All the best
Victor

[Franky_1]

Hi Victor,

thx for your reply. We already have NIS implemented in that environment, so could you please outline the actions we have to take to distribute it from there?

Thx

Franky

[Victor BERRIDGE]

Ji again,
Im not sure I undestood what you were trying to achieve:
If its updating resolv.conf on servers, you will have to change it on all concerned boxes
NIS is network => no local files...
So using NIS, the way I understand is :
The NIS (YP) server can be run in "DNS-forwarding mode",
where it forwards lookup requests to DNS for host-names and
-addresses that do not exist in its database.

So you would have in /etc/nssitch.conf file a line like this:
hosts: nis [NOTFOUND=return] DNS files
or
hosts: files DNS NIS


But Im no network expert...

All the best
Victor

P.S. For files we want centralised and distributed (e.g hosts...) we use rdist or rsync

[Geoff Wild]

You can use your own scripts to keep resolv.conf the same on multiple hosts...

You can use a system like cfengine to maintain that....

I believe you can also use System Insight Manager to do this as well.


Rgds...Geoff

[Bill Hassell]

Whether there are 10 or 1000 machines, updating a single file such as /etc/resolv.conf is a trivial task, and perfectly suited for scp to handle. If you haven't started using ssh exclusively, this is a great time to install and configure it. Otherwise, use Perl's ftp module to push the file, although you have to use .netrc or code a lot of login steps for each machine.