Best Way To Resolve NFS Debug Permission Denied

 

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In the past few days, some of our users have encountered a known error message that prevents nfs from debugging. This problem can arise for several reasons. Let’s discuss some of them below.

 

 

After modifying all the / etc / exports files, you must do the most important thing on the server:

  $ exportfs -a 

Even when debugging NFS networking issues, you can run showmount -e to see what a particular server is mounting.

Example

  $ showmount shoemakerExport the -e list to create a shoemaker:/ Shuster / isos 192.168.1.0/24 

Services Running On NFS Clients

You actually need to make sure the assembly works with services so that in many cases clients can communicate with the NFS server:

  $ chkconfig --list | grep rpcrpcbind 0: disabled 1: disabled 2: enabled 3: enabled 4: enabled 5: enabled 6: disabledrpcgssd 0: disabled 1: disabled 2: disabled 3: enabled 4: enabled 5: enabled 6:turned offrpcidmapd 0: disabled 1: disabled 2: disabled 3: enabled 4: enabled 5: enabled 6: disabledrpcsvcgssd 0: disabled 1: disabled 2: disabled 3: disabled 4: disabled 5: disabled 6: disabled 

  $ chkconfig --list | grep nfsnfs 0: disabled 1: disabled 2: disabled 3: disabled 4: disabled 5: disabled 6: disablednfslock 0: disabled 1: disabled 2: disabled 3: enabled 4: enabled 5: enabled 6: disabled 

Rpcinfo

When the above services connect, you should be able to check which experts claim that the client can perform remote procedures (rpc) with the NFS server, for example:

  $ rpcinfo -p shoemaker   Package-protoport service    100000 1 tcp one hundred eleven mapper ports    100,000 2 UDP 111 Portmapper    100024 integer 807 UDP state    100024 1 status tcp 810   100011 1 udp 718 rquotad   100011 multiple PDU 718 rquotad   100011 1 tcp 721 rquotad   100011 4 tcp 721 rquotad    100003 2 udp 2049 nfs    100003 3 udp 2049 nfs    100003 different udp 2049 nfs    100021 1 UDP 60327 nlockmgr    100021 3 UDP 60327 nlockmgr    100021 4 UDP 60327 nlockmgr    100003 2 tcp 2049 nfs    100003 approximately three TCP 2049 nfs    100003 4 TCP 2049 nfs    100021 1 TCP 57752 nlockmgr    100021 3 TCP 57752 nlockmgr    100021 bit tcp 57752 nlockmgr    100005 udp 550 installed    100005 1 tcp 753 v   bor    100005 only udp 500 installed    100005 2 tcp 753 assy    100005 3 udp 750 mounted    100005 7 tcp 753 assy 

Building And Kernel Modules

I see what you wrote in the answer, which you then deleted. You should have included this information in the question! May

I understand where you ended up getting lost. I don’t think you should use:

  $ mount -t nfsd ... 

  $ develop t nfs ... 

Try to change this. I can also see where you finally fell silent. You have not loaded the nfs kernel component.

  $ modprobe nfs 

…

 

 

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