NFS Lab issue in check

hello Sir ,

In NFS LAB Q 9 everything is fine till Q8 and it’s checks
but lab does not pass on this question even if below command is succefully given on nfs-server

bob@nfs-lab-server:~$ sudo exportfs -o 172.16.238.187:/software/repos

Can you please review and comment what is missing here ?

As taught in the lesson earlier we do not want to give sudo exports -a
As this command will not achieve the purpose of restricting access only to Bob’s laptop

I believe hint file should have included above command or correction if I am making any error here.


Q9 : 
Back on the  `nfs-lab-server`  export the directory  `/software/repos`  to Bob's laptop.

Use the export definition in the  `/etc/exports`  file.

Check

* *info_outline* Hint

* Tasks not completed!

* Task completed?

Command 'docker exec -w /questions test_infra pytest test_nfs.py' returned non-zero exit status 1.

/software/repos is not exported

===================================================

Output 

===============================================================

bob@nfs-lab-server:~$ cat /etc/exports
# /etc/exports: the access control list for filesystems which may be exported
#               to NFS clients.  See exports(5).
#
# Example for NFSv2 and NFSv3:
# /srv/homes       hostname1(rw,sync,no_subtree_check) hostname2(ro,sync,no_subtree_check)
#
# Example for NFSv4:
# /srv/nfs4        gss/krb5i(rw,sync,fsid=0,crossmnt,no_subtree_check)
# /srv/nfs4/homes  gss/krb5i(rw,sync,no_subtree_check)
#
/software/repos 172.16.238.187
bob@nfs-lab-server:~$
bob@nfs-lab-server:~$ sudo exportfs -o 172.16.238.187:/software/repos
[sudo] password for bob:
bob@nfs-lab-server:~$
bob@nfs-lab-server:~$

bob@nfs-lab-server:~$
bob@nfs-lab-server:~$ cat /etc/hosts
127.0.0.1       localhost
::1     localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
172.16.238.187  caleston-lp10
 172.16.238.190 centos-lab
172.16.238.101  nfs-lab-server
bob@nfs-lab-server:~$

=====================================================

Output from Bob laptop 

bob@caleston-lp10:~$ ls -al /mnt
total 16
drwxr-xr-x 4 root root 4096 May 23 03:52 .
drwxr-xr-x 1 root root 4096 Nov 19 10:54 ..
drwxr-xr-x 2 root root 4096 May 23 03:52 data
drwxr-xr-x 2 root root 4096 May 23 03:49 nfs
bob@caleston-lp10:~$
bob@caleston-lp10:~$ sudo mount 172.16.238.101:/software/repos /mnt/data
mount.nfs: access denied by server while mounting 172.16.238.101:/software/repos
bob@caleston-lp10:~$
bob@caleston-lp10:~$ mount | grep 101
bob@caleston-lp10:~$
bob@caleston-lp10:~$ mount
overlay on / type overlay (rw,relatime,lowerdir=/var/lib/docker/overlay/3a05bbcd391c28684a98888d1112cf00f02ead505b468e5a7e62355dfc34e021/root,upperdir=/var/lib/docker/overlay/c39ac69add752af896b30f3280a3b9b53248e9e25a9e64e835931ddbe750400f/upper,workdir=/var/lib/docker/overlay/c39ac69add752af896b30f3280a3b9b53248e9e25a9e64e835931ddbe750400f/work)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=1996156k,nr_inodes=499039,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)mqueue on /dev/mqueue type mqueue (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
/dev/mapper/host01--vg-root on /lib/modules type ext4 (rw,relatime,errors=remount-ro,data=ordered)/dev/mapper/host01--vg-root on /etc/resolv.conf type ext4 (rw,relatime,errors=remount-ro,data=ordered)
/dev/mapper/host01--vg-root on /etc/hostname type ext4 (rw,relatime,errors=remount-ro,data=ordered)
/dev/mapper/host01--vg-root on /etc/hosts type ext4 (rw,relatime,errors=remount-ro,data=ordered)shm on /dev/shm type tmpfs (rw,nosuid,nodev,noexec,relatime,size=65536k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
tmpfs on /run type tmpfs (rw,nosuid,nodev,mode=755)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
sunrpc on /run/rpc_pipefs type rpc_pipefs (rw,relatime)
configfs on /sys/kernel/config type configfs (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
bob@caleston-lp10:~$
bob@caleston-lp10:~$ findmnt
TARGET                                SOURCE    FSTYPE     OPTIONS
/                                     overlay   overlay    rw,relatime,lowerdir=/var/lib/docker/overlay/3a05bbc
|-/run                                tmpfs     tmpfs      rw,nosuid,nodev,mode=755
| |-/run/lock                         tmpfs     tmpfs      rw,nosuid,nodev,noexec,relatime,size=5120k
| `-/run/rpc_pipefs                   sunrpc    rpc_pipefs rw,relatime
|-/proc                               proc      proc       rw,nosuid,nodev,noexec,relatime
|-/sys                                sysfs     sysfs      rw,nosuid,nodev,noexec,relatime
| |-/sys/kernel/config                configfs  configfs   rw,relatime
| |-/sys/fs/fuse/connections          fusectl   fusectl    rw,relatime
| `-/sys/fs/cgroup                    tmpfs     tmpfs      ro,nosuid,nodev,noexec,mode=755
|   |-/sys/fs/cgroup/unified          cgroup    cgroup2    rw,nosuid,nodev,noexec,relatime,nsdelegate
|   |-/sys/fs/cgroup/systemd          cgroup    cgroup     rw,nosuid,nodev,noexec,relatime,xattr,name=systemd
|   |-/sys/fs/cgroup/pids             cgroup    cgroup     rw,nosuid,nodev,noexec,relatime,pids
|   |-/sys/fs/cgroup/blkio            cgroup    cgroup     rw,nosuid,nodev,noexec,relatime,blkio
|   |-/sys/fs/cgroup/memory           cgroup    cgroup     rw,nosuid,nodev,noexec,relatime,memory
|   |-/sys/fs/cgroup/hugetlb          cgroup    cgroup     rw,nosuid,nodev,noexec,relatime,hugetlb
|   |-/sys/fs/cgroup/rdma             cgroup    cgroup     rw,nosuid,nodev,noexec,relatime,rdma
|   |-/sys/fs/cgroup/cpu,cpuacct      cgroup    cgroup     rw,nosuid,nodev,noexec,relatime,cpu,cpuacct
|   |-/sys/fs/cgroup/freezer          cgroup    cgroup     rw,nosuid,nodev,noexec,relatime,freezer
|   |-/sys/fs/cgroup/net_cls,net_prio cgroup    cgroup     rw,nosuid,nodev,noexec,relatime,net_cls,net_prio
|   |-/sys/fs/cgroup/cpuset           cgroup    cgroup     rw,nosuid,nodev,noexec,relatime,cpuset
|   |-/sys/fs/cgroup/devices          cgroup    cgroup     rw,nosuid,nodev,noexec,relatime,devices
|   `-/sys/fs/cgroup/perf_event       cgroup    cgroup     rw,nosuid,nodev,noexec,relatime,perf_event
|-/dev                                udev      devtmpfs   rw,nosuid,relatime,size=1996156k,nr_inodes=499039,mo
| |-/dev/pts                          devpts    devpts     rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=00
| |-/dev/shm                          tmpfs     tmpfs      rw,nosuid,nodev
| | `-/dev/shm                        shm       tmpfs      rw,nosuid,nodev,noexec,relatime,size=65536k
| |-/dev/mqueue                       mqueue    mqueue     rw,relatime
| `-/dev/hugepages                    hugetlbfs hugetlbfs  rw,relatime,pagesize=2M
|-/lib/modules                        /dev/mapper/host01--vg-root[/var/lib/docker/volumes/0c6f81511949febe8982bd483f9ac43f842f31c69b970d6bb495cd7e020ec044/_data]
|                                               ext4       rw,relatime,errors=remount-ro,data=ordered
|-/etc/resolv.conf                    /dev/mapper/host01--vg-root[/var/lib/docker/containers/0290accd7c51b4d8f51b35826cc2512aa983f96a87b7651ba9b42fb15ea4b1b5/resolv.conf]
|                                               ext4       rw,relatime,errors=remount-ro,data=ordered
|-/etc/hostname                       /dev/mapper/host01--vg-root[/var/lib/docker/containers/0290accd7c51b4d8f51b35826cc2512aa983f96a87b7651ba9b42fb15ea4b1b5/hostname]
|                                               ext4       rw,relatime,errors=remount-ro,data=ordered
`-/etc/hosts                          /dev/mapper/host01--vg-root[/var/lib/docker/containers/0290accd7c51b4d8f51b35826cc2512aa983f96a87b7651ba9b42fb15ea4b1b5/hosts]
                                                ext4       rw,relatime,errors=remount-ro,data=ordered
bob@caleston-lp10:~$
bob@caleston-lp10:~$
bob@caleston-lp10:~$
bob@caleston-lp10:~$


Looks like the check passes with

exportfs -a command but this defies the logic of using exportfs -0 command which is taught in the course.

with best regards
Pradeep nehe

Hello, @ppnehe
Let me check.

I have seen that sudo exportfs -o command shows the content as we specified in the /etc/exportfs file. To export all specified directories in the /etc/exportfs we have to do sudo exportfs -a.

Yes that’s correct .

But this Q9 in the lab does not pass on this question even if below command is succefully given on nfs-server

bob@nfs-lab-server:~$ sudo exportfs -o 172.16.238.187:/software/repos

Can you please review and comment what is missing here ?

with best regards
Pradeep Nehe