NFS (Network File System) is a distributed file system protocol that allows you to share files and directories with other Linux/Unix clients over a network. It enables multiple computers to access the same files and directories concurrently. NFS is commonly used in environments where centralized storage is required and file sharing between multiple systems is necessary.
Here are the steps to install NFS on CentOS 7:
Step 1: Update System Packages
Before installing any new software, it's good practice to update the system packages to their latest versions by running the following command:
sudo yum update -y
Step 2: Install NFS Server
To install NFS server, run the following command:
sudo yum install nfs-utils -y
Step 3: Enable and Start NFS Services
Next, enable and start the required NFS services by running the following commands:
Now, we need to configure the NFS exports, which specify the directories that will be shared with other systems. Edit the NFS exports file using your preferred text editor:
sudo vi /etc/exports
Add the directories that you want to share in the following format:
Replace /path/to/directory with the actual path of the directory you want to share, and client_ip with the IP address or subnet of the client system that will be allowed to access the shared directory.
For example, to share the directory /shared with a client at IP address 192.168.1.100, add the following line:
Save and close the file.
Step 5: Export NFS Shares
After configuring the NFS exports, you need to export them by running the following command:
sudo exportfs -a
Step 6: Allow NFS Services Through Firewall
If you have the firewall enabled, allow NFS services through the firewall by running the following commands:
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