Part 8 of setting up a Linux home lab environment with VirtualBox. Check this blog post for more info.
NFS server is used to make its data generally available to clients.
Software
Software used in this article:
- CentOS 6
- nfs-utils 1.2
Installation
# yum install nfs-utils nfs-utils-lib # chkconfig nfs on # /etc/init.d/rpcbind start # /etc/init.d/nfs start
Configuration
Our NFS server has a FQDN of spacewalk.hl.local and resides on 10.8.8.0/24 LAN.
Create a Logical Volume for NFS Shares
Check volume groups:
# vgs VG #PV #LV #SN Attr VSize VFree vg_centos6 1 5 0 wz--n- 124.21g 77.34g
Create a 5GB logical volume named lv_nfs in the vg_centos6 group, format as ext4 and mount on /mnt/nfs.
# lvcreate --name lv_nfs --size 5G vg_centos6 # mkfs.ext4 -m 0 /dev/mapper/vg_centos6-lv_nfs # mkdir -p /mnt/nfs # mount /dev/mapper/vg_centos6-lv_nfs /mnt/nfs # mkdir -p /mnt/nfs/public # chown nfsnobody:nfsnobody /mnt/nfs/public
Configure NFS exports:
# cat /etc/exports /mnt/nfs/public 10.8.8.0/24(rw,sync,no_subtree_check,root_squash,all_squash)
Parameters that are used in our case:
- rw: allows both read and write requests on the NFS volume,
- sync: replies to requests only after the changes have been committed to stable storage,
- no_subtree_check: disables subtree checking,
- root_squash: maps requests from (root) uid/gid 0 to the nfsnobody uid/gid,
- all_squash: maps all uids and gids to the nfsnobody uid/gid.
Export the share:
# exportfs -rav exporting 10.8.8.0/24:/mnt/nfs/public
Check:
# showmount -e Export list for spacewalk.hl.local: /mnt/nfs/public 10.8.8.0/24
Firewall
Allow NFS and rpcbind (portmapper) access from 10.8.8.0/24 LAN:
# iptables -A INPUT -s 10.8.8.0/24 -p tcp -m multiport --dport 111,2049 -j ACCEPT # iptables -A INPUT -s 10.8.8.0/24 -p udp -m multiport --dport 111,2049 -j ACCEPT
NFS Client Configuration
Install NFS utilities and mount an NFS share.
# yum install nfs-utils nfs-utils-lib # mkdir /mnt/public # mount.nfs spacewalk.hl.local:/mnt/nfs/public /mnt/public