I have two servers
A and B
I've installed nfs on A, exported a directory, and added nfs/rpcbind/mountd to my firewall

From server B, I get "no route to host" when I run mount


Has anyone seen this before?



















Additional information:
I CAN ping and SSH from B to A
DNS set correctly, I can ping A from B and B from A by name and IP
TCP port 111 allowed, nfs, mountd, rpc-bind allowed on Server A
I tried disabling firewalld on server A but still get the error
Permissions are set to 777 on server A share
I've restarted the nfs-server service after configuring everything
/etc/exports is /common serverB(rw) on server A - so it's not the culprit

From the client what does say?

What distribution / version is A and B running?

Did you install the nfs client software on B? Depending on distribution that is usually the nfs-common package which includes rpcbind. Is rpcbind running on the server?

nfs uses both tcp/udp on port 2049 as well as rpcbind on port 111 (I believe).

I get RPC: Program not registered when I run showmount on that server

Both A and B are running RHEL 9.0 with a GUI
I installed the software for NFS on B
RPC bind is running on the server
I added TCP and UDP ports 111 and 2049 to the firewall and issued the reload command

This link goes over a lot of the steps for troubleshooting the RPC error: https://unix.stackexchange.com/quest...not-registered

Thank you sooo much for the help, I ended up reverting to a snapshot, redoing the whole configuration and doing this:

Add rpc-bind to firewall
Add nfs to firewall
Reload firewall
Restart rpcbind.service
Restart nfs-server.service
Update permissions to 777 on server directory i was sharing
Mounted NFS share on client