NIS client with 2 distinct servers ?

[Lior Mishkovsky]

Hi,

Is there a way to define 2 NIS servers. The usuall choice is between broadcast or to connect directly to a specified machine - can i define 2 of those ?!
(HPUX11.22/11.00)

Lior./

[steven Burgess_2]

Hi

You can only have one master in a domain. If the master isn't available you use the slave as defined in /etc/rc.config.d/namesvrs

Regards

Steve

[V. V. Ravi Kumar_1]

Hi,

U can only have one NIS master server in a domain.

Regards

[Balaji N]

hi,
configure one as the master and the other as a slave.
-balaji

[Lior Mishkovsky]

Hi,

Let me rewrite : I am an NIS CLIENT, need to configure 1st & 2nd servers (but not using broadcast method).
Please be specific/detailed.

Lior./

[Zeev Schultz · Accepted solution]

Lior,
option "-c" for ypbind builds a list
of NIS servers to bind to.The list is created
in /var/yp/binding//ypservers.
For more details read man page on ypbind.

Zeev

[Zeev Schultz]

I beleive this flag was introduced
with 11.00 NIS patch PHNE_24034 (last one - PHNE_28102 ).On 11.11 - PHNE_28103.

cheers

Zeev

[Shannon Petry]

There is no standard method for doing this. You can only specify 1 server in the /etc/rc.config.d/namesrvs file.

However, you can write your own script to change this at boot time by pinging the primary and secondary servers, and changing the variable as needed.

I have on occastion written scripts which look to see if yp is bound, and if not will kill ypbind, run ypset and check and bind to the appropriate server.

If you reboot and use the broadcast option, the clients will try and find the best server and bind to it. This is the recommended method.

Regards,
Shannon

[Zeev Schultz]

Shannon,
default method for configuring Sun Solaris NIS
clients afaik was ever - 'ypinit -c',Hp just followed Sun as NIS code comes from there."-c"
flag is pretty recent in hp-ux.

Regards,

Zeev

[Zeev Schultz]

Lior ,sorry for typo -
"ypinit -c" not "ypbind -c".
man ypinit .

Zeev

[Lior Mishkovsky]

Zeev,

In the 10.20/11.00 systems this option did not exist, therefor I didn't try it anymore (ypinit -c).
Thanks for your help - it worked on 11.22 system.
Are there patches for 10.20/11.00.
Is there a reasinable way to test it (without taking down the master) ?

Lior./

[Zeev Schultz]

Patch for 11.00 is PHNE_28102.
It requires reboot and has (at least) 5 another
patches dependant on.
As to shutdown the master server - why should
you do that?ypinit -c is a client option.

[Lior Mishkovsky]

Zeev,

1st - thanks for the patch information.
I wanted to know if there is a "nondistructive" way to test the client configuration ("without shuting down the 1st NIS machine/service).

Lior./