Member-only story
How to Test and Troubleshoot NFS Mount Connectivity on Linux
Setting up Network File System (NFS) mounts is a routine task for system administrators and developers alike. However, when a mount fails, finding the root cause can be frustrating. Is it a firewall blocking the ports? Is it an export permission issue on the storage controller? Or is it a syntax error in your mount command?
Non Member? Click here
In this guide, we will walk through a foolproof, step-by-step methodology to test and verify NFS connectivity from a client server to both UAT and Production NFS servers using standard Linux command-line utilities.
The Scenario & Environment
For this guide, we will use the following dummy environment details:
- Client Server IP:
10.10.14.1 - Production NFS Server:
nfs-prod-server.example.com(IP:192.168.10.50) - Export Path:
/exports/prod/data - UAT NFS Server:
nfs-uat-server.example.com(IP:192.168.20.50) - Export Path:
/exports/uat/data
Step 1: Network Port Connectivity Checks
Before running any NFS-specific commands, you must ensure that the network path is open. NFS relies on two primary ports:
- Port 111 (RPC Bind / Portmapper): Used to map RPC program numbers to network port numbers.
- Port 2049 (NFS Service): The actual port…
