Skip to main content

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

By
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.

Labels:

Comments

Post a Comment

Popular posts from this blog

Explain how to configure DHCP client?

By
50.Explain how to configure DHCP client? Ans. 1. Before configuring DHCP, NIC should be configured properly and recognized by the system. 2. After that it’s easy to command system to use DHCP to obtain its IP information. 3. Configuring DHCP client involves following steps : a. Open the /etc/sysconfig/networkscripts/ifcfg-eth0 file. b. Find the line bootproto=static c. Change the static to dhcp. d. Save changes. e. Restart the network by issuing command ‘service network restart’, after that system will receive its IP information from the DHCP server.
Post a Comment
Read more

QT practicals files

By
Temporarily Available: Click below to download|||||||||||
Post a Comment
Read more

List and explain all NFS server commands.

By
65.List and explain all NFS server commands. Ans. 1. exportfs: a) The exportfs command enables user to manipulate the list of current exports without editing /etc/exports. b) It also maintains the list of currently exported file system in /var/lib/nfs/etab. Example: The exportfs –a command initializes /var/lib/nfs/etab, synchronizes it with the contents of /etc/exports. c) To add a new export to etab and also /etc/exports the syntax is : #exportfs –o opts hostdir d) Example: #exportfs –o sync,rw 192.168.166.7:/demo The above command exports the directory /demo to client 192.168.166.7 with export option rw and sync. e) –v option of this command, lists currently exported filesystem. Example: #exportfs –v f) –u options unexports the filesystem as follow: Example: #exportfs –u 192.168.166.7:/demo 2. showmount: a) The showmount command provides information about clients and the file systems they have mounted. b) Syntax is : #showmount [-advhe] [host] ...
Post a Comment
Read more