Open Services for Network File System: click Start, point to Administrative Tools, and then click Services for Network File System (NFS).

If necessary, connect to the computer you want to manage.

Right-click Server for NFS, and then click Properties.

Click the Server Settings tab.

Choose one of the following options:

• To prevent Server for NFS from periodically renewing authentication, click Do not renew authentication.
  
  
• To configure Server for NFS to renew authentication periodically, click Renew authentication every: and type how many seconds will elapse before authentication will be renewed. The default value is 600 seconds.
  
  

Click Apply.

Open a command prompt with elevated privileges.

1. Click Start, and then click All Programs.
   
   
2. Point to Accessories, right-click the Command Prompt icon, and then click Run as administrator.
   
   

Choose one of the following options:

• To prevent Server for NFS from periodically renewing authentication, type:
  
  nfsadmin server [ComputerName] config renewauth=no
  
  
• To configure Server for NFS to renew authentication periodically, type:
  
  nfsadmin server [ComputerName] config renewauth=yes
  
  nfsadmin server [ComputerName] config renewauthinterval=seconds
  
  

  Argument	Description
  ComputerName	The name of the computer you want to configure.
  seconds	The number of seconds that will elapse before authentication is renewed. The default value is 600.

  	Note
  	To view the complete syntax for this command, at a command prompt, type: nfsadmin server /?