User talk:Jch: Difference between revisions
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The nfs-clients are configured to mount from fstab | The nfs-clients are configured to mount from fstab | ||
storage:/srv/home /home | storage:/srv/home /home nfs noauto,defaults,noexec 0 0 | ||
"storage" is defined in /etc/hosts to point to the right server. | "storage" is defined in /etc/hosts to point to the right server. | ||
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mount /home | mount /home | ||
We will compare the '''dmesg''' outputs, the '''ls -ld /home''' outputs, the '''cat /home/test''' and '''touch /home/toto''' ones. /home/test is prepared on the server (just a text file containing "do you see me?"). | We will compare the '''dmesg''' outputs, the '''ls -ld /home''' outputs, the '''cat /home/test''' and '''touch /home/toto''' ones. /home/test is prepared on the server (just a text file containing "do you see me?"). Those tests are run as root user. | ||
== NFS-server in KVM-Debian == | == NFS-server in KVM-Debian == | ||
Revision as of 13:37, 23 January 2015
NFS bug study
All debian used are fresh install of wheezy 7.8.
All alpine used are fresh install of edge. (will also try vanilla kernel in KVM)
All boxes are supermicro servers with bi-Xeon running AL from USB key.
I do not have physical access to the boxes!
The NFS-servers are configured to export
/srv/home 192.168.1.0/24(rw,sync,no_subtree_check)
The nfs-clients are configured to mount from fstab
storage:/srv/home /home nfs noauto,defaults,noexec 0 0
"storage" is defined in /etc/hosts to point to the right server.
The test is done with
mount /home
We will compare the dmesg outputs, the ls -ld /home outputs, the cat /home/test and touch /home/toto ones. /home/test is prepared on the server (just a text file containing "do you see me?"). Those tests are run as root user.
NFS-server in KVM-Debian
fresh install with tasksel "file server"
this KVM in running on bare metal alpine
nfs-client on bare metal AL
nfs-client in KVM AL
mount /home gives
in dmesg
[73460.112383] RPC: Registered named UNIX socket transport module. [73460.112386] RPC: Registered udp transport module. [73460.112388] RPC: Registered tcp transport module. [73460.112389] RPC: Registered tcp NFSv4.1 backchannel transport module. [73460.165060] svc: failed to register lockdv1 RPC service (errno 111). [73460.165069] lockd_up: makesock failed, error=-111 [73460.217513] NFS: Registering the id_resolver key type [73460.217524] Key type id_resolver registered [73460.217525] Key type id_legacy registered
in ls -ld /home/
drwxr-xr-x 2 42949672 42949672 6 Jan 23 12:27 /home
in cat /home/test
Do you see me?
in touch /home/toto
touch: /home/toto: Permission denied