NFS
NFS (Network File System) is a file-sharing protocol developed by Sun Microsystems to allow Linux/Unix systems to access remote files as if they were local.
Key Differences from SMB:
NFS is for Linux/Unix, while SMB is mainly for Windows.
Older NFS versions authenticate devices, while SMB always requires user authentication.
NFSv4+ includes security features like Kerberos & ACLs.
NFS Versions:
NFSv2 (UDP-based, outdated but still supported).
NFSv3 (Supports larger files, better error handling).
NFSv4 (Stateful, supports Kerberos & ACLs).
NFSv4.1 (Adds pNFS for parallel access & multipathing).
FS uses ONC-RPC (SUN-RPC) over TCP/UDP (port 111) and relies on XDR for cross-system data exchange.
Does NFS have built-in authentication or authorization?
❌ No built-in authentication in NFS itself; it relies on RPC authentication.
✅ Authorization depends on UNIX file system permissions (UID/GID).
To use NFS (Network File System), you need to open these ports:
TCP/UDP port 2049: The main port NFS uses to transfer files (TCP for reliability, UDP for speed).
TCP/UDP port 111: Used by RPC to connect clients to the server.
Foot printing
NFS scripts → This lets us check whether the target share is connected to the network on all required ports.
Once an NFS service is found, we can mount it on our local machine to access shared files.
Steps to mount an NFS share:
1️⃣ Check available shares:
2️⃣ Create a local mount point:
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