Nfs – mount.nfs: assigning subnets in /etc/export is not working

centos7nfssubnet

I have installed nfs-server on centos
and edited my /etc/exports as follows

/data 10.25.0.0/25(rw,sync,no_root_squash).

when I try to connect from my client with ip address 10.25.44.144, the connection is refused.

but when I edit /etc/exports with the exact ip 10.25.44.144, mount works.

but I actually want to accept request from any client in the subnet 10.25.*.*

how would I do that?

Thanks

Best Answer

In that case, reading https://www.centos.org/docs/5/html/Deployment_Guide-en-US/s1-nfs-server-config-exports.html before can be a good thing to do.

Keep in mind that 10.25.0.0/25 only covers https://www.adminsub.net/ipv4-subnet-calculator/10.25.0.0/25

First IP 10.25.0.1
Last IP 10.25.0.126

If you wish to cover 10.25.44.144, you are going to need to use either a direct ip as you mention before (can be a solution), or extend your /25 to a /18

https://www.adminsub.net/ipv4-subnet-calculator/10.25.0.0/18

First IP 10.25.0.1
Last IP 10.25.63.254

I would recommend you to keep somewhere at work/home that sheet

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