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Nick Craig-Wood
2025-11-21 17:10:17 +00:00
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docs/content/commands/rclone_serve_nfs.md
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@@ -12,7 +12,7 @@ Serve the remote as an NFS mount
## Synopsis
Create an NFS server that serves the given remote over the network.
This implements an NFSv3 server to serve any rclone remote via NFS.
The primary purpose for this command is to enable the [mount
@@ -66,12 +66,16 @@ cache.
To serve NFS over the network use following command:
rclone serve nfs remote: --addr 0.0.0.0:$PORT --vfs-cache-mode=full
```sh
rclone serve nfs remote: --addr 0.0.0.0:$PORT --vfs-cache-mode=full
```
This specifies a port that can be used in the mount command. To mount
the server under Linux/macOS, use the following command:
mount -t nfs -o port=$PORT,mountport=$PORT,tcp $HOSTNAME:/ path/to/mountpoint
```sh
mount -t nfs -o port=$PORT,mountport=$PORT,tcp $HOSTNAME:/ path/to/mountpoint
```
Where `$PORT` is the same port number used in the `serve nfs` command
and `$HOSTNAME` is the network address of the machine that `serve nfs`
@@ -106,8 +110,10 @@ directory should be considered up to date and not refreshed from the
backend. Changes made through the VFS will appear immediately or
invalidate the cache.
```text
--dir-cache-time duration Time to cache directory entries for (default 5m0s)
--poll-interval duration Time to wait between polling for changes. Must be smaller than dir-cache-time. Only on supported remotes. Set to 0 to disable (default 1m0s)
```
However, changes made directly on the cloud storage by the web
interface or a different copy of rclone will only be picked up once
@@ -119,16 +125,22 @@ You can send a `SIGHUP` signal to rclone for it to flush all
directory caches, regardless of how old they are. Assuming only one
rclone instance is running, you can reset the cache like this:
kill -SIGHUP $(pidof rclone)
```console
kill -SIGHUP $(pidof rclone)
```
If you configure rclone with a [remote control](/rc) then you can use
rclone rc to flush the whole directory cache:
rclone rc vfs/forget
```console
rclone rc vfs/forget
```
Or individual files or directories:
rclone rc vfs/forget file=path/to/file dir=path/to/dir
```console
rclone rc vfs/forget file=path/to/file dir=path/to/dir
```
## VFS File Buffering
@@ -159,6 +171,7 @@ write simultaneously to a file. See below for more details.
Note that the VFS cache is separate from the cache backend and you may
find that you need one or the other or both.
```text
--cache-dir string Directory rclone will use for caching.
--vfs-cache-mode CacheMode Cache mode off|minimal|writes|full (default off)
--vfs-cache-max-age duration Max time since last access of objects in the cache (default 1h0m0s)
@@ -166,6 +179,7 @@ find that you need one or the other or both.
--vfs-cache-min-free-space SizeSuffix Target minimum free space on the disk containing the cache (default off)
--vfs-cache-poll-interval duration Interval to poll the cache for stale objects (default 1m0s)
--vfs-write-back duration Time to writeback files after last use when using cache (default 5s)
```
If run with `-vv` rclone will print the location of the file cache. The
files are stored in the user cache file area which is OS dependent but
@@ -213,13 +227,13 @@ directly to the remote without caching anything on disk.
This will mean some operations are not possible
* Files can't be opened for both read AND write
* Files opened for write can't be seeked
* Existing files opened for write must have O_TRUNC set
* Files open for read with O_TRUNC will be opened write only
* Files open for write only will behave as if O_TRUNC was supplied
* Open modes O_APPEND, O_TRUNC are ignored
* If an upload fails it can't be retried
- Files can't be opened for both read AND write
- Files opened for write can't be seeked
- Existing files opened for write must have O_TRUNC set
- Files open for read with O_TRUNC will be opened write only
- Files open for write only will behave as if O_TRUNC was supplied
- Open modes O_APPEND, O_TRUNC are ignored
- If an upload fails it can't be retried
### --vfs-cache-mode minimal
@@ -229,10 +243,10 @@ write will be a lot more compatible, but uses the minimal disk space.
These operations are not possible
* Files opened for write only can't be seeked
* Existing files opened for write must have O_TRUNC set
* Files opened for write only will ignore O_APPEND, O_TRUNC
* If an upload fails it can't be retried
- Files opened for write only can't be seeked
- Existing files opened for write must have O_TRUNC set
- Files opened for write only will ignore O_APPEND, O_TRUNC
- If an upload fails it can't be retried
### --vfs-cache-mode writes
@@ -315,9 +329,11 @@ read, at the cost of an increased number of requests.
These flags control the chunking:
```text
--vfs-read-chunk-size SizeSuffix Read the source objects in chunks (default 128M)
--vfs-read-chunk-size-limit SizeSuffix Max chunk doubling size (default off)
--vfs-read-chunk-streams int The number of parallel streams to read at once
```
The chunking behaves differently depending on the `--vfs-read-chunk-streams` parameter.
@@ -331,9 +347,9 @@ value is "off", which is the default, the limit is disabled and the chunk size
will grow indefinitely.
With `--vfs-read-chunk-size 100M` and `--vfs-read-chunk-size-limit 0`
the following parts will be downloaded: 0-100M, 100M-200M, 200M-300M, 300M-400M and so on.
When `--vfs-read-chunk-size-limit 500M` is specified, the result would be
0-100M, 100M-300M, 300M-700M, 700M-1200M, 1200M-1700M and so on.
the following parts will be downloaded: 0-100M, 100M-200M, 200M-300M, 300M-400M
and so on. When `--vfs-read-chunk-size-limit 500M` is specified, the result would
be 0-100M, 100M-300M, 300M-700M, 700M-1200M, 1200M-1700M and so on.
Setting `--vfs-read-chunk-size` to `0` or "off" disables chunked reading.
@@ -371,32 +387,41 @@ In particular S3 and Swift benefit hugely from the `--no-modtime` flag
(or use `--use-server-modtime` for a slightly different effect) as each
read of the modification time takes a transaction.
```text
--no-checksum Don't compare checksums on up/download.
--no-modtime Don't read/write the modification time (can speed things up).
--no-seek Don't allow seeking in files.
--read-only Only allow read-only access.
```
Sometimes rclone is delivered reads or writes out of order. Rather
than seeking rclone will wait a short time for the in sequence read or
write to come in. These flags only come into effect when not using an
on disk cache file.
```text
--vfs-read-wait duration Time to wait for in-sequence read before seeking (default 20ms)
--vfs-write-wait duration Time to wait for in-sequence write before giving error (default 1s)
```
When using VFS write caching (`--vfs-cache-mode` with value writes or full),
the global flag `--transfers` can be set to adjust the number of parallel uploads of
modified files from the cache (the related global flag `--checkers` has no effect on the VFS).
the global flag `--transfers` can be set to adjust the number of parallel uploads
of modified files from the cache (the related global flag `--checkers` has no
effect on the VFS).
```text
--transfers int Number of file transfers to run in parallel (default 4)
```
## Symlinks
By default the VFS does not support symlinks. However this may be
enabled with either of the following flags:
```text
--links Translate symlinks to/from regular files with a '.rclonelink' extension.
--vfs-links Translate symlinks to/from regular files with a '.rclonelink' extension for the VFS
```
As most cloud storage systems do not support symlinks directly, rclone
stores the symlink as a normal file with a special extension. So a
@@ -408,7 +433,8 @@ Note that `--links` enables symlink translation globally in rclone -
this includes any backend which supports the concept (for example the
local backend). `--vfs-links` just enables it for the VFS layer.
This scheme is compatible with that used by the [local backend with the --local-links flag](/local/#symlinks-junction-points).
This scheme is compatible with that used by the
[local backend with the --local-links flag](/local/#symlinks-junction-points).
The `--vfs-links` flag has been designed for `rclone mount`, `rclone
nfsmount` and `rclone serve nfs`.
@@ -418,7 +444,7 @@ It hasn't been tested with the other `rclone serve` commands yet.
A limitation of the current implementation is that it expects the
caller to resolve sub-symlinks. For example given this directory tree
```
```text
.
├── dir
│   └── file.txt
@@ -496,7 +522,9 @@ sync`.
This flag allows you to manually set the statistics about the filing system.
It can be useful when those statistics cannot be read correctly automatically.
```text
--vfs-disk-space-total-size Manually set the total disk space size (example: 256G, default: -1)
```
## Alternate report of used bytes
@@ -507,7 +535,7 @@ With this flag set, instead of relying on the backend to report this
information, rclone will scan the whole remote similar to `rclone size`
and compute the total used space itself.
_WARNING._ Contrary to `rclone size`, this flag ignores filters so that the
**WARNING**: Contrary to `rclone size`, this flag ignores filters so that the
result is accurate. However, this is very inefficient and may cost lots of API
calls resulting in extra charges. Use it as a last resort and only with caching.
@@ -525,7 +553,7 @@ Note that some backends won't create metadata unless you pass in the
For example, using `rclone mount` with `--metadata --vfs-metadata-extension .metadata`
we get
```
```console
$ ls -l /mnt/
total 1048577
-rw-rw-r-- 1 user user 1073741824 Mar 3 16:03 1G
@@ -550,8 +578,6 @@ If the file has no metadata it will be returned as `{}` and if there
is an error reading the metadata the error will be returned as
`{"error":"error string"}`.
```
rclone serve nfs remote:path [flags]
```
@@ -605,7 +631,7 @@ See the [global flags page](/flags/) for global options not listed here.
Flags for filtering directory listings
```
```text
--delete-excluded Delete files on dest excluded from sync
--exclude stringArray Exclude files matching pattern
--exclude-from stringArray Read file exclude patterns from file (use - to read from stdin)
@@ -633,5 +659,10 @@ Flags for filtering directory listings
## See Also
<!-- markdownlint-capture -->
<!-- markdownlint-disable ul-style line-length -->
* [rclone serve](/commands/rclone_serve/) - Serve a remote over a protocol.
<!-- markdownlint-restore -->