How to configure Network file system (NFS) server?

67.How to configure Network file system (NFS) server?
Ans.
1. Verify the service package using following command
#rpmquery –qa | grep nfs

2. The export a file system we need to modify ‘/etc/exports’ file.
For example we want to export /media then we’ll add the following entries in ‘/etc/exports’ file.
/media 192.168.166.0/24(rw)

3. Now, with the export configured, start the daemons using the initializing scripts:
#server nfs start
#server nfs lock start

4. Now, use rpcinfo –p to make sure the necessary daemons are running as follow:
#rpcinfo –p

5. Next, execute showmount –a to list the servers NFS exports as follow:
#showmount –a

6. Finally, enable NFS from boot with the help of chkconfig.
#chkconfig nfs on

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How to configure Network file system version 4 (NFSv4) client?

69.How to configure Network file system version 4 (NFSv4) client? Ans. 1. There are two new options listed in NFSv4 are introduced as: clientaddr and ports 2. The version 3 of NFS introduced NFS over TCP, which improved NFS’s reliability. 3. In NFSv3, users use the mount option i.e., tcp as client whether client wants to use TCP or UDP to communicate with the server. NFSv4 replaces tcp or udp with a single option i.e. ports=tcp or udp 4. The default buffer size for NFSv4 is 8192 bytes, but it can grow to as large and by 32,678 bytes, which results performance improvements. 5. Following are the mount options: clientaddr=n – Declares client to be multihomed proto=type – Declares port as either udp or tcp resize=n – declares read size of clients buffer wsize=n – Declares write size of clients buffer sec=mod – Declares security model as either krb, krb5 etc.

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