calypso/docs/nfs-install-report.md

NFS Service Installation - Complete

Summary

Successfully installed and configured NFS (Network File System) server on Ubuntu 24.04 Calypso server.

Installation Details

• Date: 2025-12-25 10:01 UTC
• Server: calypso (10.10.14.16)
• OS: Ubuntu 24.04

Packages Installed

1. nfs-kernel-server - Main NFS server package
2. nfs-common - Common NFS utilities
3. rpcbind - RPC portmapper (required for NFS)
4. libnfsidmap1 - NFSv4 ID mapping library
5. keyutils - Key management utilities

Total size: 569 kB download, 2,022 kB installed

Services Status

All NFS services running successfully:

✅ rpcbind.service - RPC bind portmap service

• Status: active (running) since 10:01:01 UTC
• PID: 382764

✅ nfs-server.service - NFS server and services

• Status: active (exited) since 10:01:05 UTC
• Enabled: yes

✅ nfs-blkmap.service - pNFS block layout mapping daemon

• Status: active (running)

✅ nfs-idmapd.service - NFSv4 ID-name mapping service

• Status: active (running)

✅ nfs-mountd.service - NFS Mount Daemon

• Status: active (running)

✅ nfsdcld.service - NFSv4 Client Tracking Daemon

• Status: active (running)

Configuration Files

• /etc/exports - NFS export definitions (currently empty)
• /etc/idmapd.conf - NFSv4 ID mapping configuration
• /etc/nfs.conf - NFS server configuration
• /etc/default/nfs-kernel-server - NFS kernel server defaults

Export Configuration

Currently no exports configured. Export list is empty: \\ash showmount -e localhost

Export list for localhost:

\\

Next Steps for NFS Share Configuration

1. Create NFS Export

Edit /etc/exports to add shared directories: \\ash

Example exports

/data/nfs-share 192.168.1.0/24(rw,sync,no_subtree_check) /backup 10.10.14.0/24(ro,sync,no_root_squash) \\

2. Apply Exports

\\ash exportfs -a # Apply all exports exportfs -v # Verify exports systemctl restart nfs-server \\

3. Firewall Rules (if needed)

\\ash ufw allow from 192.168.1.0/24 to any port nfs ufw allow 2049/tcp # NFS ufw allow 111/tcp # RPC portmapper ufw allow 111/udp # RPC portmapper \\

4. Test Mount (from client)

\\ash showmount -e 10.10.14.16 mount -t nfs 10.10.14.16:/data/nfs-share /mnt/nfs \\

NFS Export Options Reference

• rw: Read-write access
• ro: Read-only access
• sync: Synchronous writes (safer, slower)
• async: Asynchronous writes (faster, less safe)
• no_subtree_check: Disable subtree checking (better performance)
• no_root_squash: Allow root access from client
• root_squash: Map root to anonymous user (more secure)

Integration with Calypso

NFS shares can be used for:

• Exporting ZFS datasets via NFS
• Sharing tape library storage
• Remote backup destinations
• Distributed storage access

Verification Commands

\\ash

Check NFS service status

systemctl status nfs-server

List all NFS-related services

systemctl list-units | grep nfs

Show active exports

exportfs -v

Show exports to clients

showmount -e localhost

Check RPC services

rpcinfo -p \\

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Status: ✅ Installation Complete Services: ✅ All Running Ready for: Export configuration and client mounting