UPDATED!!!!
SCENARIO
We want to point Web1 and Web2 servers to the NFS (Network File System) Server. NFS keeps all the moodle data files and the web servers Web1 and Web2 point to the same storage.
Server: 10.10.4.30 (nfs)
Clients: 10.10.4.21 (Web1), 10.10.4.22 (Web2)
NFS SERVER (10.10.4.30)
install and start server
$ sudo yum update
$ sudo yum install net-tools
$ sudo yum install nfs-utils rpcbind
We’ll store the moodle files here on nfs server
$ sudo mkdir -p /home/msen/moodledata
$ sudo chmod 777 /home/msen/moodledata
FIREWALL
$ sudo firewall-cmd --permanent --zone=public --add-port=2049/tcp
$ sudo firewall-cmd --permanent --zone=public --add-port=111/tcp
$ sudo firewall-cmd --reload
make sure selinux is disabled
$ sudo vi /etc/sysconfig/selinux
SELINUX=disabled
define shared directories for clients web1 and web2 on server
$ sudo vi /etc/exports
/home/msen/moodledata 10.10.4.21(rw,no_root_squash)
/home/msen/moodledata 10.10.4.22(rw,no_root_squash)
export them
$ sudo exportfs -a
or
$ sudo systemctl start rpcbind nfs-server
$ sudo systemctl enable rpcbind nfs-server
check the nfs ports
$ sudo systemctl restart rpcbind
$ sudo rpcinfo -p | grep nfs
100003 3 tcp 2049 nfs 100003 4 tcp 2049 nfs 100227 3 tcp 2049 nfs_acl 100003 3 udp 2049 nfs 100003 4 udp 2049 nfs 100227 3 udp 2049 nfs_acl
check the portmap ports
$ rpcinfo -p | grep portmap
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
if the system supports nfs
$ cat /proc/filesystems | grep nfs
nodev nfsd
NFS CLIENT WEB1 AND WEB2 (10.10.4.21 and 10.10.4.22)
install and mount
$ sudo yum install nfs-utils rpcbind
$ sudo systemctl start rpcbind
$ sudo systemctl enable rpcbind
test ports from client web1 and web2
$ rpcinfo -p 10.10.4.30
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 100005 1 udp 20048 mountd 100005 1 tcp 20048 mountd 100005 2 udp 20048 mountd 100005 2 tcp 20048 mountd 100005 3 udp 20048 mountd 100005 3 tcp 20048 mountd 100003 3 tcp 2049 nfs 100003 4 tcp 2049 nfs 100227 3 tcp 2049 nfs_acl 100003 3 udp 2049 nfs 100003 4 udp 2049 nfs 100227 3 udp 2049 nfs_acl 100021 1 udp 57646 nlockmgr 100021 3 udp 57646 nlockmgr 100021 4 udp 57646 nlockmgr 100021 1 tcp 46794 nlockmgr 100021 3 tcp 46794 nlockmgr 100021 4 tcp 46794 nlockmgr
on web1 and web2
$ sudo vi /etc/hosts
10.10.4.30 nfs
re-test ports now with hostname
$ rpcinfo -p nfs
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 100005 1 udp 20048 mountd 100005 1 tcp 20048 mountd 100005 2 udp 20048 mountd 100005 2 tcp 20048 mountd 100005 3 udp 20048 mountd 100005 3 tcp 20048 mountd 100003 3 tcp 2049 nfs 100003 4 tcp 2049 nfs 100227 3 tcp 2049 nfs_acl 100003 3 udp 2049 nfs 100003 4 udp 2049 nfs 100227 3 udp 2049 nfs_acl 100021 1 udp 57646 nlockmgr 100021 3 udp 57646 nlockmgr 100021 4 udp 57646 nlockmgr 100021 1 tcp 46794 nlockmgr 100021 3 tcp 46794 nlockmgr 100021 4 tcp 46794 nlockmgr
create the moodledata folder if not exists
$ sudo mkdir -p /var/moodledata
$ sudo chmod 777 /var/moodledata
finally let’s mount
$ sudo mount -v -t nfs -o proto=tcp,port=2049 nfs:/home/msen/moodledata /var/moodledata
mount.nfs: timeout set for Tue Oct 31 13:16:54 2017 mount.nfs: trying text-based options 'proto=tcp,port=2049,vers=4.1,addr=10.10.4.30,clientaddr=10.10.4.21'
check out the filesystem
$ df -hT
Filesystem Type Size Used Avail Use% Mounted on /dev/mapper/centos-root xfs 8.5G 2.3G 6.2G 27% / devtmpfs devtmpfs 5.8G 0 5.8G 0% /dev tmpfs tmpfs 5.8G 0 5.8G 0% /dev/shm tmpfs tmpfs 5.8G 17M 5.8G 1% /run tmpfs tmpfs 5.8G 0 5.8G 0% /sys/fs/cgroup /dev/sda1 xfs 497M 152M 345M 31% /boot tmpfs tmpfs 1.2G 0 1.2G 0% /run/user/1000 nfs:/home/msen/moodledata nfs4 198G 33M 198G 1% /var/moodledata
198G is more than enough for our moodledata folder!
if needed later, for unmount, for future reference
$ sudo umount /var/moodledata
configure mount when system boots, add additional line
$ sudo vi /etc/fstab
#added by Mehmet Sen nfs:/home/msen/moodledata /var/moodledata nfs defaults 0 0
TEST IT
on client:
$ sudo touch /var/moodledata/NFS.test
on server
$ ls -l /var/moodledata
or vice versa
MOODLE COURSE BACKUP
ON NFS SERVER
create backup folder for courses
$ sudo mkdir -p /var/coursedata
$ sudo chmod 777 /var/coursedata/
point the clients to the shared folders
$ sudo vi /etc/exports
/home/msen/moodledata 10.10.4.21(rw,no_root_squash)
/home/msen/moodledata 10.10.4.22(rw,no_root_squash)
/var/coursedata 10.10.4.21(rw,no_root_squash)
/var/coursedata 10.10.4.22(rw,no_root_squash)
restart nfs
$ sudo systemctl restart rpcbind nfs-server
ON CLIENT WEB1 AND WEB2
create backup folder for courses
$ sudo mkdir -p /var/coursedata
$ sudo chmod 777 /var/coursedata/
$ sudo systemctl restart rpcbind
configure mount when system boots
$ sudo vi /etc/fstab
nfs:/home/msen/moodledata /var/moodledata nfs defaults 0 0 nfs:/var/coursedata /var/coursedata nfs defaults 0 0
let’s mount coursedata folder
$ sudo mount -v -t nfs nfs:/var/coursedata /var/coursedata
mount.nfs: timeout set for Tue Oct 31 13:32:29 2017 mount.nfs: trying text-based options 'vers=4.1,addr=10.10.4.30,clientaddr=10.10.4.21'
Only if unmount needed!
$ sudo umount /var/coursedata
re-check out the filesystem
$ df -hT
Filesystem Type Size Used Avail Use% Mounted on /dev/mapper/centos-root xfs 8.5G 2.3G 6.2G 27% / devtmpfs devtmpfs 5.8G 0 5.8G 0% /dev tmpfs tmpfs 5.8G 0 5.8G 0% /dev/shm tmpfs tmpfs 5.8G 17M 5.8G 1% /run tmpfs tmpfs 5.8G 0 5.8G 0% /sys/fs/cgroup /dev/sda1 xfs 497M 152M 345M 31% /boot tmpfs tmpfs 1.2G 0 1.2G 0% /run/user/1000 nfs:/home/msen/moodledata nfs4 198G 33M 198G 1% /var/moodledata nfs:/var/coursedata nfs4 50G 1.3G 49G 3% /var/coursedata
Now we have additional 50G coursedata folder which is enough
AGAIN ON NFS
If you see error while mounting the /var/coursdata folder try run this on the NFS Server
$ sudo exportfs -f
YEEYYYYYY!!!
I have a problem I have a setup for nfs client but the problems is that the automount is nowhhere its not in FSTAB or automount and its working even after reboot …
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