[CentOS] Desktop Over NFS Home Blocked By Firewalld

Fri Nov 20 23:37:12 UTC 2020
Gordon Messmer <gordon.messmer at gmail.com>

On 11/20/20 1:26 PM, Michael B Allen wrote:
> Thanks for the inputs but my problem has nothing to do with NFS.

Do you think that because you saw "krbupdate" in /etc/services?

The problem you've described is definitely an NFSv3 problem.  The 
connections causing the client to hang are portmap connections. They're 
dynamic, and don't necessarily conform to /etc/services.

The lesson to learn, here, is that /etc/services maps names to numbers, 
but it does NOT map numbers to names.  Port numbers aren't reserved 
simply because there is a mapping to them in /etc/services.