The front end of time, when the equipment upgrade nfs do a new understanding.
nfs generally considered to be file-sharing server, but in the actual work environment, business server has many limitations, the need for encryption and isolation measures, etc., version upgrades and debugging is different from the usual experimental environment.
Especially good point is that the company provides a service nfs software, its configuration can be achieved windows and Linux mount by enabling file sharing, the key point of this implementation is that the export and import replacement and upgrade rsa certificate. Version upgrade is relatively simple, is used for file version to be replaced, restart, and check the version. But in the process of re-commissioning certificate rsa always import fails, the background display sk is null (the certificate is empty), the sender display interface tunnel establishment fails. But by management certificate has been exported to consolidate on the computer, ready to verify that the management tools to work properly.
The result is platform management tool for some problems, leading to the Certificate Export content missing, import the certificate body so that no success can import content, so would the role with nfs alternative management tools. First means mounted using nfs certificate, certificate to identify the location of a find command to the computer to share the mount, with the fc command file comparison, we found an export certificate and certificate shared content different way then using nfs the export and import certificates, restart the server and found that normal communication tunnel "front door key" (certificate) finally normal communications. In the work-related files, flexible use nfs can save a lot of time (when there is no available tools at hand). Also, do not over-reliance on a particular tool.
Another note: fc with the diff command are Windows and Linux compare the files.