Red Hat Bugzilla – Bug 244266
yppasswdd does not propogate changes
Last modified: 2008-06-16 21:35:31 EDT
Description of problem:
yppasswdd does not propogate changes
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.Run ypserv and yppasswdd on the computer that is server for nis
2.Run yppasswd from client machine and change an individual's
3.Try ssh'ing to any machine on network
You can only login with the old password
You should be able to login with the new password
If you restart ypserv, then you can login with the new password and not the old one.
On the client side, could you please post a bzip2 binary network
trace? Something similar to
'tshark -w /tmp/yp.pcap host <server> ; bzip2 /tmp/yp.cap'
(Note: you might have to 'yum install wireshark' to get tshark)
Created attachment 157499 [details]
Here is the network trace you asked for.
well I don't see anything intesting in the trace...
Are there any failures at all in /var/log/messages?
When I changed my password from a yp client, on the yp server's
/var/log/messages the following showed up:
Jul 20 12:30:19 ellison rpc.yppasswdd: update ed (uid=1157) from host
However, when I try to ssh to any machine on our network, it only accepts the
old password and not the new one that I entered with yppasswd.
Nothing showed up in /var/log/messages for the client.
Yeah... I see that entry too.. but the password is
chaned every time...
I did my testing in loopback (i.e. on the same machine),
let me rework the tests...
Also, we are using ipV4, not ipV6. I understand that ypserv now is reachable by
broadcast only in ipV6.
WRT Comment 6, switch the order of udp/tcp and udp6/tcp6 in
/etc/netconfig. udp/tcp needs to come first. Something
--- /etc/netconfig.orig 2005-05-18 01:10:50.000000000 -0400
+++ /etc/netconfig 2007-07-24 09:45:40.000000000 -0400
@@ -10,10 +10,10 @@
# The <device> and <nametoaddr_libs> fields are always empty in this
-udp6 tpi_clts v inet6 udp - -
-tcp6 tpi_cots_ord v inet6 tcp - -
udp tpi_clts v inet udp - -
tcp tpi_cots_ord v inet tcp - -
+udp6 tpi_clts v inet6 udp - -
+tcp6 tpi_cots_ord v inet6 tcp - -
rawip tpi_raw - inet - - -
local tpi_cots_ord - loopback - - -
unix tpi_cots_ord - loopback - - -
That will take care of the broadcast problem.... Also
please let me know if it has any effect on yppasswdd
not propogating changes...
I made that change to /etc/netconfig, rebooted the server, and still cannot see
the broadcast on the clients.
I just had the same problem on an RHEL5 system. In my case it was an selinux
problem not allowing yppasswdd to run pwupdate.
In my case selinux is disabled.
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