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Linux CentOS 7 - NFS configuration

Linux CentOS 7 - NFS Configuration

Setup:

2 systems, sysmtem1 and system2 in the example.com domain;
IP address of interface ens33 on system1: 192.168.189.140/24
IP address of interface ens33 on system2: 192.168.189.141/24

CentOS version 7.6

Export a public directory on system1 with read-only access to system2.example.com

On system1.example.com:

yum install nfs* -y

vim /etc/sysconfig/nfs

       RPCNFSDARGS="-V4.2"

systemctl enable nfs-server
systemctl start nfs-server

firewall-cmd --permanent --add-service=nfs
firewall-cmd --permanent --add-service=mountd
firewall-cmd --permanent --add-service=rpc-bind
firewall-cmd --reload

mkdir /public
chmod 777 /public

getsebool -a | grep nfs (no changes required on default settings)

semanage fcontext -a -t public_content_t '/public(/.*)?'
restorecon -RFv /public

vim /etc/exports

/public *.example.com(ro,sync)

exportfs -var

systemctl restart nfs-server

showmount -e localhost

On system2.example.com:

yum install -y nfs-utils

vim /etc/sysconfig/nfs

        RPCNFSDARGS="-V4.2"

mkdir /mnt/public

vim /etc/fstab

192.168.189.141:/public     /mnt/public   nfs   defaults 0 0

Verify results

1) on system1:
touch /public/123

on system2:
ll /mnt/public

should show file 123

2) on system2:

touch /mnt/public/456
should give an error

If you experience any problem with this configuration, please let me know.



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