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тАО04-26-2011 12:55 AM
тАО04-26-2011 12:55 AM
NFS and NIS issue
I am running nfs and nis server, i have used nis maps and automounter.
Recently one of the client name got changed and I have edited the netgroup file and changed old hostname to newhostname. After making changes i have run "make" command and also in nfs server "exportfs -av"
Issue is from client side the one hostname changed , all nfs mounts are mounting as a read-only even though they are shared as a rw mode to all nis clients.
Other clients are running properly except the client which changed the hostname.
Plz help me in this regard
Details:
NIS Server : HPUX 11.31
NFS server : HPUX 11.31
NIS client : HPUX 11.31
When I run the ypwhich netgroup from client side its reflecting the changes.
Thanking you in advance
Praveen
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тАО04-26-2011 03:29 AM
тАО04-26-2011 03:29 AM
Re: NFS and NIS issue
did you change the hostname to more then 8 characters?
How does the netgroups/dfstab look like?
Are you using full qualified names in the maps?
Which nfs options do you use for the exports?
How is autofs configured?
What does a 'share' on the NFS server show?
Which version of nfs do you use?
Anything helpful in the logs of the nfs client / server?
Best,
Stephan
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тАО04-26-2011 03:47 AM
тАО04-26-2011 03:47 AM
Re: NFS and NIS issue
Hey thanks for your response, plz find my answers in line
Hi Praveen,
did you change the hostname to more then 8 characters?
No Its exactly 8 Character
How does the netgroups/dfstab look like?
They are fine, bcoz other clients are working fine.
Are you using full qualified names in the maps?
yes, its FQDN defined
Which nfs options do you use for the exports?
Read Write mode for all shares using sharefs
How is autofs configured?
There are auto maps are configured
What does a 'share' on the NFS server show?
I
ts showing as correct as rw to netgroup clients
Which version of nfs do you use?
NFS Version 4 Protocol (NFSv4)
Anything helpful in the logs of the nfs client / server?
Sorry I din find any clue of logs
Best,
Stephan
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тАО04-26-2011 05:18 AM
тАО04-26-2011 05:18 AM
Re: NFS and NIS issue
let's get out the crystal ball ...
Without any information it is pretty hard to help, i can only wild guess.
Why v4? I had big trouble at a customer which ended up with rolling back to v3 in a similar config (NIS,autofs ) - we had the same behavior (read only clients even if the export was done with read write).
Please post at least the line as example for one export from the dfstab, a share output for the same line.
And last one a 'setoncenv -l' for client and server.
Best,
Stephan
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тАО04-26-2011 05:21 AM
тАО04-26-2011 05:21 AM
Re: NFS and NIS issue
Ok.
> [...] After making changes i have run
> "make" command [...]
Do you mean:
cd /var/yp
make
or something else?
> [...] also in nfs server "exportfs -av"
Was there any output when you did that? My
HP-UX system is down at the moment. Does
"exportfs" actually do anything now?
> They are fine, [...]
It's nice that you think that things are
fine, but some people might like to see the
evidence, rather than your opinion of what it
all means.
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тАО04-26-2011 09:31 AM
тАО04-26-2011 09:31 AM
Re: NFS and NIS issue
Will explain about the setup in breif
1) NIS server is configured in HP 11.31 IA and it uses nis maps such as auto.user,auto.master,netgroup etc (plz note : this is the only server and there is no slave)
2) NFS server is configured on different server and shared the mount points using netgroup (Which contains list of client names and nis user) map
3) Client side automounter is defined as "+auto.master" in /etc/auto_master
Plz find detail answer
did you change the hostname to more then 8 characters?
No,Its a 8 character length
How does the netgroups/dfstab look like?
netgroups : dev_team (cg1.ex.com,,) (cg2.ex.com,,) [ Plz note cg2 was the hostname cahnged]
dfstab : /usr/sbin/share -F nfs -o rw=dev_team -d "user --> /home" /home1
/usr/sbin/share -F nfs -o rw=dev_team -d "user2 --> /user" /user1
Are you using full qualified names in the maps?
Yes, its FQDN
Which nfs options do you use for the exports?
Read write options to dev_team servers
How is autofs configured?
auto_master nis map file is created and it has entry like below
/user auto.user -intr
and auto.user file has entry like below
pg nfsserver:/home1/&
What does a 'share' on the NFS server show?
/home1 rw=dev_team,ro= "user --> /home"
Which version of nfs do you use?
nfs 4
Anything helpful in the logs of the nfs client / server?
I am not able to find any log message, plz suggest me where i can get the log, I have looked in /var/adm/ log but din get any related message.
Stephen : after editing netgroup file i have done cd /var/yp then run the make command
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тАО04-26-2011 10:29 PM
тАО04-26-2011 10:29 PM
Re: NFS and NIS issue
I'm still waiting for the output of 'setoncenv -l' on nfs client and server.
First Point:
You use the new share command with it's options but doing the export with exportfs - this should work usually due to the fact exportfs is on 11.31 a wrapper script for the share binary, but from my experience the better way is to stick with one of both or you run in trouble.
Second Point:
Please change your dfstab by adding the sec clause - f.e.
/usr/sbin/share -F nfs -o sec=sys,rw=dev_team -d "user --> /home" /home1
and run a '/usr/sbin/shareall'
Please provide the output of 'share' after that and test again.
Best,
Stephan
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тАО04-27-2011 03:24 AM
тАО04-27-2011 03:24 AM
Re: NFS and NIS issue
AUTO_MASTER="/etc/auto_master"
AUTOFS=1
AUTOMOUNT_OPTIONS=""
AUTOMOUNTD_OPTIONS="-D ARCH=ia64"
AUTOMOUNT_TIMEOUT not defined
AUTOMOUNT_VERBOSE not defined
AUTOMOUNTD_ENV not defined
AUTOMOUNTD_NOBROWSE not defined
AUTOMOUNTD_TRACE not defined
AUTOMOUNTD_VERBOSE not defined
LOCKD_OPTIONS=""
LOCKMGR=1
STATD_OPTIONS=""
GRACE_PERIOD=90
LOCKD_LISTEN_BACKLOG=32
LOCKD_RETRANSMIT_TIMEOUT=5
LOCKD_SERVERS=20
STATD_PORT not defined
MAX_STATD_THREADS not defined
PERCENT_STATD_THREADS not defined
klm_log_level=0
KEYSERV_OPTIONS=""
ENABLE_NOBODY_KEYS not defined
MAX_NISCHECKS=2
NIS_CLIENT=1
NIS_DOMAIN=dev
NIS_MASTER_SERVER=0
NIS_SLAVE_SERVER=0
SHADOW_MODE=0
YPBIND_OPTIONS="-ypset"
YPPASSWDD_OPTIONS="/etc/passwd -m passwd PWFILE=/etc/passwd"
YPSERV_OPTIONS=""
YPSET_ADDR="nis."
YPUPDATED_OPTIONS=""
YPXFRD_OPTIONS=""
NFS_CLIENT=1
MOUNTD_OPTIONS=""
NFS_SERVER=1
PCNFS_SERVER=0
START_MOUNTD=1
START_NFSLOGD=0
MOUNTD_PORT not defined
MOUNTD_TRACE not defined
MOUNTD_THREADS not defined
NFS_CLIENT_VERSMIN not defined
NFS_CLIENT_VERSMAX not defined
NFS_SERVER_DELEGATION not defined
NFS_SERVER_VERSMIN not defined
NFS_SERVER_VERSMAX not defined
NFSD_DEVICE not defined
NFSD_LISTEN_BACKLOG=32
NFSD_MAX_CONNECTIONS not defined
NFSD_PROTOCOL=ALL
NFSD_SERVERS=16
NFSMAPID_DOMAIN not defined
GSSD_MAXRECSIZE not defined
nfs2_async_clusters=1
nfs2_bsize=8192
nfs2_cots_timeo=600
nfs2_do_symlink_cache=1
nfs2_dynamic=1
nfs2_lookup_neg_cache=1
nfs2_max_threads=8
nfs2_nra=4
nfs2_shrinkreaddir=0
nfs2_srv_read_copyavoid=0
nfs3_async_clusters=1
nfs3_bsize=32768
nfs3_cots_timeo=600
nfs3_do_readdirplus=1
nfs3_do_symlink_cache=1
nfs3_dynamic=0
nfs3_jukebox_delay=1000
nfs3_lookup_neg_cache=1
nfs3_max_threads=8
nfs3_max_transfer_size=1048576
nfs3_max_transfer_size_clts=32768
nfs3_max_transfer_size_cots=1048576
nfs3_nra=4
nfs3_pathconf_disable_cache=0
nfs3_srv_read_copyavoid=0
nfs4_async_clusters=1
nfs4_bsize=32768
nfs4_cots_timeo=600
nfs4_do_symlink_cache=1
nfs4_lookup_neg_cache=1
nfs4_max_threads=8
nfs4_max_transfer_size=1048576
nfs4_max_transfer_size_cots=1048576
nfs4_nra=4
nfs4_pathconf_disable_cache=0
nfs_async_timeout=6000
nfs_disable_rddir_cache=0
nfs_enable_write_behind=0
nfs_exi_cache_time=3600
nfs_nacache=0
nfs_nogpage=1
nfs_nrnode=0
nfs_portmon=0
nfs_write_error_interval=5
nfs_write_error_to_cons_only=0
nfs3_enable_async_directio_read=0
nfs3_enable_async_directio_write=0
nfs3_max_async_directio_requests=8
CYCLE_FREQUENCY not defined
IDLE_TIME not defined
MAX_LOGS_PRESERVE not defined
MIN_PROCESSING_SIZE not defined
UMASK not defined
MAPPING_UPDATE_INTERVAL not defined
PRUNE_TIMEOUT not defined
port not defined
printer not defined
spooldir not defined
uidrange not defined
wtmp not defined
NFS_CORE=1
RPCBIND_OPTIONS=""
COMMAND_START_DAEMON not defined
rpc_clnt_idle_timeout=300000
rpc_clnt_max_conns=1
rpc_clnt_udpresvports=0
rpc_svc_cltsmaxdupreqs=1024
rpc_svc_cotsmaxdupreqs=1024
rpc_svc_default_max_same_xprt=8
rpc_svc_idle_timeout=360000
Server side
AUTO_MASTER="/etc/auto_master"
AUTOFS=1
AUTOMOUNT_OPTIONS=""
AUTOMOUNTD_OPTIONS="-D ARCH=ia64"
AUTOMOUNT_TIMEOUT not defined
AUTOMOUNT_VERBOSE not defined
AUTOMOUNTD_ENV not defined
AUTOMOUNTD_NOBROWSE not defined
AUTOMOUNTD_TRACE not defined
AUTOMOUNTD_VERBOSE not defined
LOCKD_OPTIONS=""
LOCKMGR=1
STATD_OPTIONS=""
GRACE_PERIOD=90
LOCKD_LISTEN_BACKLOG=32
LOCKD_RETRANSMIT_TIMEOUT=5
LOCKD_SERVERS=20
STATD_PORT not defined
MAX_STATD_THREADS not defined
PERCENT_STATD_THREADS not defined
klm_log_level=0
KEYSERV_OPTIONS=""
ENABLE_NOBODY_KEYS not defined
MAX_NISCHECKS=2
NIS_CLIENT=1
NIS_DOMAIN=dev
NIS_MASTER_SERVER=0
NIS_SLAVE_SERVER=0
SHADOW_MODE=0
YPBIND_OPTIONS="-ypset"
YPPASSWDD_OPTIONS="/etc/passwd -m passwd PWFILE=/etc/passwd"
YPSERV_OPTIONS=""
YPSET_ADDR="192.168.0.10"
YPUPDATED_OPTIONS=""
YPXFRD_OPTIONS=""
NFS_CLIENT=1
MOUNTD_OPTIONS=""
NFS_SERVER=1
PCNFS_SERVER=0
START_MOUNTD=1
START_NFSLOGD=0
MOUNTD_PORT not defined
MOUNTD_TRACE not defined
MOUNTD_THREADS not defined
NFS_CLIENT_VERSMIN not defined
NFS_CLIENT_VERSMAX not defined
NFS_SERVER_DELEGATION not defined
NFS_SERVER_VERSMIN not defined
NFS_SERVER_VERSMAX not defined
NFSD_DEVICE not defined
NFSD_LISTEN_BACKLOG=32
NFSD_MAX_CONNECTIONS not defined
NFSD_PROTOCOL=ALL
NFSD_SERVERS=16
NFSMAPID_DOMAIN not defined
GSSD_MAXRECSIZE not defined
nfs2_async_clusters=1
nfs2_bsize=8192
nfs2_cots_timeo=600
nfs2_do_symlink_cache=1
nfs2_dynamic=1
nfs2_lookup_neg_cache=1
nfs2_max_threads=8
nfs2_nra=4
nfs2_shrinkreaddir=0
nfs2_srv_read_copyavoid=0
nfs3_async_clusters=1
nfs3_bsize=32768
nfs3_cots_timeo=600
nfs3_do_readdirplus=1
nfs3_do_symlink_cache=1
nfs3_dynamic=0
nfs3_jukebox_delay=1000
nfs3_lookup_neg_cache=1
nfs3_max_threads=8
nfs3_max_transfer_size=1048576
nfs3_max_transfer_size_clts=32768
nfs3_max_transfer_size_cots=1048576
nfs3_nra=4
nfs3_pathconf_disable_cache=0
nfs3_srv_read_copyavoid=0
nfs4_async_clusters=1
nfs4_bsize=32768
nfs4_cots_timeo=600
nfs4_do_symlink_cache=1
nfs4_lookup_neg_cache=1
nfs4_max_threads=8
nfs4_max_transfer_size=1048576
nfs4_max_transfer_size_cots=1048576
nfs4_nra=4
nfs4_pathconf_disable_cache=0
nfs_async_timeout=6000
nfs_disable_rddir_cache=0
nfs_enable_write_behind=0
nfs_exi_cache_time=3600
nfs_nacache=0
nfs_nogpage=0
nfs_nrnode=0
nfs_portmon=0
nfs_write_error_interval=5
nfs_write_error_to_cons_only=0
CYCLE_FREQUENCY not defined
IDLE_TIME not defined
MAX_LOGS_PRESERVE not defined
MIN_PROCESSING_SIZE not defined
UMASK not defined
MAPPING_UPDATE_INTERVAL not defined
PRUNE_TIMEOUT not defined
port not defined
printer not defined
spooldir not defined
uidrange not defined
wtmp not defined
NFS_CORE=1
RPCBIND_OPTIONS=""
COMMAND_START_DAEMON not defined
rpc_clnt_idle_timeout=300000
rpc_clnt_max_conns=1
rpc_clnt_udpresvports=0
rpc_svc_cltsmaxdupreqs=1024
rpc_svc_cotsmaxdupreqs=1024
rpc_svc_default_max_same_xprt=8
rpc_svc_idle_timeout=360000
/usr/sbin/share -F nfs -o sec=sys,rw=dev_team -d "user --> /home" /home1
After changing
- /home1 sec=sys,rw=dev_team "user --> /home"
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тАО04-27-2011 10:43 PM
тАО04-27-2011 10:43 PM
Re: NFS and NIS issue
i see a lot of variables not configured - any specific reason for that?
NFS_CLIENT_VERSMIN not defined
NFS_CLIENT_VERSMAX not defined
And no mount option for v4, so you leave the decision to the machine which version to use?
NFSMAPID_DOMAIN not defined
This one is pretty important if you run nfs version 4. HP-UX runs through several steps to define it and V4 does not work if client/server has a different value.
Nevertheless it can work, not optimal but it can.
/home1 rw=dev_team,ro= "user --> /home"
After changing
- /home1 sec=sys,rw=dev_team "user --> /home"
So the Read Only access list is gone - does it work now?
Best,
Stephan
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тАО05-01-2011 09:17 PM
тАО05-01-2011 09:17 PM
Re: NFS and NIS issue
The issue got resolved, it was related DNS
Actually I was mentioned about the hostname changed of the client which was having the issue. Problem was reverse lookup of the IP was resulting to the old hostname and this was causing automounter to mount as a read-only.
I am very gr8 to both of you for helping me
Thanks,
Praveen