ankurgupta1985
November 14th, 2011, 11:47 PM
NIS stopped working after upgrading from 11.04 to 11.10
I have a small network which used to run NIS on Ubuntu 11.04 just fine. After I upgraded the master server to 11.10, every client machine (which are also slave servers) that was restarted does not recognize usernames in NIS database. But the client (also slave servers) machines which were not restarted work just fine.
I updated and upgraded the master server but it doesn't help. I restarted portmap, which seems to work. But when I restart nis, it fails to bind to YP server. It takes 10 very long attempts and then fails in the end.
Setting up nis (3.17-32ubuntu1) ...
* Stopping NIS services [ OK ]
* Setting NIS domainname to: [deleted]
* Starting NIS services
* binding to YP server...
* ....
* ....
* ....
* ....
* ....
* ....
* ....
* ....
* ....
* .... [fail]
[ OK ]
I checked
$ ps aux | grep rpcbind
root 621 0.0 0.0 27652 1688 ? Ss Nov11 0:00 rpcbind -w
and found that rpcbind was running. Then I checked
$ ps aux | grep yp
root 6063 0.0 0.0 12708 640 ? S 16:02 0:00 /usr/sbin/ypserv
root 6066 0.0 0.0 6452 464 ? S 16:02 0:00 /usr/sbin/rpc.yppasswdd -D /etc -e chsh
root 6069 0.0 0.0 6328 580 ? S 16:02 0:00 /usr/sbin/rpc.ypxfrd
root 6076 0.0 0.0 75352 1632 ? Sl 16:02 0:00 /usr/sbin/ypbind
and found that ypserv was running too. But when I type
$ rpcinfo -p localhost
rpcinfo: can't contact portmapper: RPC: Timed out
I restarted portmap and still this error persists. Also, checking ypserv gives an error:
$ ypserv_test
localhost: RPC: Port mapper failure - RPC: Timed out
Then I killed the yp processes manually and then restarted nis and checked
$ rpcinfo -p localhost
program vers proto port service
100000 4 tcp 111 portmapper
100000 3 tcp 111 portmapper
100000 2 tcp 111 portmapper
100000 4 udp 111 portmapper
100000 3 udp 111 portmapper
100000 2 udp 111 portmapper
100024 1 udp 48068 status
100024 1 tcp 33375 status
100004 2 udp 950 ypserv
100004 1 udp 950 ypserv
100004 2 tcp 951 ypserv
100004 1 tcp 951 ypserv
100009 1 udp 953 yppasswdd
600100069 1 udp 956 fypxfrd
600100069 1 tcp 957 fypxfrd
100007 2 udp 964 ypbind
100007 1 udp 964 ypbind
100007 2 tcp 965 ypbind
100007 1 tcp 965 ypbind
This time I get the required services but when I try to remake NIS database I get this error.
$ sudo /usr/lib/yp/ypinit -m
Updating passwd.byname...
failed to send 'clear' to local ypserv: RPC: Port mapper failureUpdating passwd.byuid...
So I thought this might be the rpcbind bug due to a separate /var partition (Bug # 875471 (https://bugs.launchpad.net/ubuntu/+source/rpcbind/+bug/875471)) so I checked the version of rpcbind on my master server.
$ dpkg -s rpcbind
Package: rpcbind
Status: install ok installed
Priority: standard
Section: net
Installed-Size: 196
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Architecture: amd64
Version: 0.2.0-6ubuntu3.1
Replaces: portmap
Provides: portmap
Depends: libc6 (>= 2.4), libtirpc1, libwrap0 (>= 7.6-4~), upstart-job, lsb-base (>= 3.2-14), insserv (>= 1.14.0-2.1) | file-rc, initscripts (>= 2.88dsf-13.3)
Pre-Depends: dpkg (>= 1.15.7.2)
Conflicts: portmap
Conffiles:
/etc/init/portmap.conf 9c0fe5de58712169799b161cbcc9b8f2
/etc/init/rpcbind-boot.conf 73a7b949697222b8d1616334629269be
/etc/init/portmap-wait.conf 21abf1424012cd65d26fc0b1f6c07181
/etc/insserv.conf.d/rpcbind 669a5c3a6ffa8b5b5ce263057934d118
The version of rpcbind is 0.2.0-6ubuntu3.1 which should be the fixed version. So this is not the bug.
Is this a new ubuntu 11.10 bug in NIS or rpcbind. Is there something wrong with my procedures?
Many users cannot login into their computers because of this problem. Any help will be very appreciated.
I have a small network which used to run NIS on Ubuntu 11.04 just fine. After I upgraded the master server to 11.10, every client machine (which are also slave servers) that was restarted does not recognize usernames in NIS database. But the client (also slave servers) machines which were not restarted work just fine.
I updated and upgraded the master server but it doesn't help. I restarted portmap, which seems to work. But when I restart nis, it fails to bind to YP server. It takes 10 very long attempts and then fails in the end.
Setting up nis (3.17-32ubuntu1) ...
* Stopping NIS services [ OK ]
* Setting NIS domainname to: [deleted]
* Starting NIS services
* binding to YP server...
* ....
* ....
* ....
* ....
* ....
* ....
* ....
* ....
* ....
* .... [fail]
[ OK ]
I checked
$ ps aux | grep rpcbind
root 621 0.0 0.0 27652 1688 ? Ss Nov11 0:00 rpcbind -w
and found that rpcbind was running. Then I checked
$ ps aux | grep yp
root 6063 0.0 0.0 12708 640 ? S 16:02 0:00 /usr/sbin/ypserv
root 6066 0.0 0.0 6452 464 ? S 16:02 0:00 /usr/sbin/rpc.yppasswdd -D /etc -e chsh
root 6069 0.0 0.0 6328 580 ? S 16:02 0:00 /usr/sbin/rpc.ypxfrd
root 6076 0.0 0.0 75352 1632 ? Sl 16:02 0:00 /usr/sbin/ypbind
and found that ypserv was running too. But when I type
$ rpcinfo -p localhost
rpcinfo: can't contact portmapper: RPC: Timed out
I restarted portmap and still this error persists. Also, checking ypserv gives an error:
$ ypserv_test
localhost: RPC: Port mapper failure - RPC: Timed out
Then I killed the yp processes manually and then restarted nis and checked
$ rpcinfo -p localhost
program vers proto port service
100000 4 tcp 111 portmapper
100000 3 tcp 111 portmapper
100000 2 tcp 111 portmapper
100000 4 udp 111 portmapper
100000 3 udp 111 portmapper
100000 2 udp 111 portmapper
100024 1 udp 48068 status
100024 1 tcp 33375 status
100004 2 udp 950 ypserv
100004 1 udp 950 ypserv
100004 2 tcp 951 ypserv
100004 1 tcp 951 ypserv
100009 1 udp 953 yppasswdd
600100069 1 udp 956 fypxfrd
600100069 1 tcp 957 fypxfrd
100007 2 udp 964 ypbind
100007 1 udp 964 ypbind
100007 2 tcp 965 ypbind
100007 1 tcp 965 ypbind
This time I get the required services but when I try to remake NIS database I get this error.
$ sudo /usr/lib/yp/ypinit -m
Updating passwd.byname...
failed to send 'clear' to local ypserv: RPC: Port mapper failureUpdating passwd.byuid...
So I thought this might be the rpcbind bug due to a separate /var partition (Bug # 875471 (https://bugs.launchpad.net/ubuntu/+source/rpcbind/+bug/875471)) so I checked the version of rpcbind on my master server.
$ dpkg -s rpcbind
Package: rpcbind
Status: install ok installed
Priority: standard
Section: net
Installed-Size: 196
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Architecture: amd64
Version: 0.2.0-6ubuntu3.1
Replaces: portmap
Provides: portmap
Depends: libc6 (>= 2.4), libtirpc1, libwrap0 (>= 7.6-4~), upstart-job, lsb-base (>= 3.2-14), insserv (>= 1.14.0-2.1) | file-rc, initscripts (>= 2.88dsf-13.3)
Pre-Depends: dpkg (>= 1.15.7.2)
Conflicts: portmap
Conffiles:
/etc/init/portmap.conf 9c0fe5de58712169799b161cbcc9b8f2
/etc/init/rpcbind-boot.conf 73a7b949697222b8d1616334629269be
/etc/init/portmap-wait.conf 21abf1424012cd65d26fc0b1f6c07181
/etc/insserv.conf.d/rpcbind 669a5c3a6ffa8b5b5ce263057934d118
The version of rpcbind is 0.2.0-6ubuntu3.1 which should be the fixed version. So this is not the bug.
Is this a new ubuntu 11.10 bug in NIS or rpcbind. Is there something wrong with my procedures?
Many users cannot login into their computers because of this problem. Any help will be very appreciated.