Hi,

I have 4 machines(M0,M1,M2,M3) on a LAN. I have used M0
as NIS server and others as NIS clients.

When I give command:
ypcat passwd on server, I do not get any error.
But when I get the same command on clients, I get
message:

No such map passwd.byname. Reason: Internal NIS error.
____________________________________________________
/etc/defaultdomain has nisdomainname.
/etc/yp.conf has the NIS server IP address, which is
also present in the /etc/hosts.

/etc/nsswitch.conf has:
passwd: compact
group: compact
shadow: compact
netgroup: nis

I added: +:::::: to /etc/passwd, +::: to /etc/group,
and +:::::::: to /etc/shadow.

/etc/default/nis has:
NISSERVER=false (for clients)____________________________________________________

I started /etc/init.d/portmap and then /etc/init.d/nis

/var/yp has nisdomainname directory in master
but /var/yp doesnot have nisdomainname directory in clients.

I do not know what else to do. Please help.

Thanks

Hi, it sounds like you've covered everything.

Does your /etc/yp.conf look like:
ypserver my.server.com

mark

do you really have "compact" in nsswitch.conf or is it just a typo? should be "compat"

>>/etc/nsswitch.conf has:
>>passwd: compact
>>group: compact
>>shadow: compact
>>netgroup: nis

Hi markcowley,

I have written IP address instead of name in /etc/yp.conf.
So it looks like:
ypservers xxx.xx.xx.xxx


Hi gkilbur1,

/etc/nsswitch.conf has:
passwd: compat
group: compat
shadow: compat
netgroup: nis
I wrote: 'compact'in my question, which was typographical error in the question.

I think that there could be two problems:
1. NIS Client is some how not communicating with NIS server.
2. NIS database is not being updated.

To verify the first doubt, I disconnected the NIS server from
the switch and then gave command 'ypcat passwd'.
The result was:
No such map passwd.byname. Reason: Cannot communicate with portmapper.
(I typed rpcinfo -p localhost and found that portmap was running)
Then I conneced the ethernet jack of server to the switch and typed again: ypcat passwd.
This time I got the different message:
No such map passwd.byname. Reason: Internal NIS error.
Then I blocked that client to access ther server by using a firewall on the server. Then I again got message:
No such map passwd.byname. Reason: Cannot communicate with portmapper.

This implies that there some sort of connection between client and the server, but may be server is not trasferring the required information to the client.

I cd to /var/yp on NIS server and typed make. This updated data on the NIS server.

(I am using Debian sarge)

I do not know how to carry out further diagnosis.

Please help. Thanks

One more thing
There is no directory with the nisdomainname in /var/yp of clients.
But there is a directory with the name of nis domain name in the server.

I do not know whether this is okay or not??

EVENTUALLY GOT IT WORKING.

THANKS FOR THE SUPPORT and HELP

glad to hear you got it to work, what did you have to fix?

Very simple. But very tricky.

In ypserv.securenets, there is a special way to allow a host.
That is :

host 10.0.0.1

I had written only 10.0.0.1 ( as we do in /etc/hosts.allow)

This word "host", cost me a lot of time.