I have recently created an NIS Server on Redhat ES 4 and I have two NIS clients both running Redhat 9. When an NIS user logs into either of the NIS clients, they receive the message id: cannot find name for user ID. I was also receiving thie error for the group ID but remedied this by adding an entry in the local clients group file. I have checked the permission on the passwd.byname and passwd.byuid and all are global read. Any ideas? Everything else seems to be working fine.

Additionally, I see the following in the NIS server syslog:
ypserv[5502]: refused connect from 192.168.0.19:32771 to procedure ypproc_match (server,passwd.byuid;-1)

ypserv[5502]: refused connect from 192.168.0.19:32771 to procedure ypproc_match (server,passwd.byname;-1)

The above IP is for the NIS client I am logging into.

Daniel,

I'm not much of an expert ... but here are a few ideas
that may or may not help.

1. Make sure that yppasswdd is running on the server

2. Any time an account is changed be sure to (on server as root):

cd /var/yp
make

3. On the client check the settings in /etc/nsswitch.conf to make
sure that the appropriate info is set to be obtained by NIS.
For example,

passwd: files nis
shadow: files nis
group: files nis

4. Check the firewall settings on the server ... it may be blocking
a needed port.


Good luck!

Terry

Yeah, all that is working. I think I might just need to remove and re-install the YPSERV stuff. Thanks though.