Davfs2 - ArchWiki

# Davfs2

From ArchWiki

davfs2 is a Linux file system driver that allows to mount a WebDAV resource. WebDAV is an extension to HTTP/1.1 that allows remote collaborative authoring of Web resources.

## Installing davfs2

Install davfs2 from official repositories.

## Mount WebDAV-resource

### Configuration and mount options

There is a system wide configuration file `/etc/davfs2/davfs2.conf` and a user configuration file `~/.davfs2/davfs2.conf`. The latter is read in addition to the system configuration when invoked by an ordinary user and takes precedence. There are general, WebDAV related, cache related and debugging options. All the available options and their syntax can be found in the manual page.

There are also mount options used to define if needed the path of the configuration file, the owner and group of the filesystem and some other options related to file access. The list of recognised options can be obtained with the following command:

    $ mount.davfs -h

Also see mount.davfs(8) for description and options.

### Using command-line

To mount a WebDAV-resource use `mount`, not `mount.davfs` directly.

    # mount -t davfs http(s)://addres:<port>/path /mount/point

### Using systemd

To use systemd mounting:

    /etc/systemd/system/mnt-webdav-service.mount

    [Unit]
    Description=Mount WebDAV Service
    After=network-online.target
    Wants=network-online.target

    [Mount]
    What=http(s)://address:<port>/path
    Where=/mnt/webdav/service
    Options=uid=1000,file_mode=0664,dir_mode=2775,grpid
    Type=davfs
    TimeoutSec=15

    [Install]
    WantedBy=multi-user.target

You can create an systemd automount unit to set a timeout

    /etc/systemd/system/mnt-webdav-service.automount

    [Unit]
    Description=Mount WebDAV Service
    After=network-online.target
    Wants=network-online.target

    [Automount]
    Where=/mnt/dav
    TimeoutIdleSec=300

    [Install]
    WantedBy=remote-fs.target

See Fstab#Automount with systemd for more tips and tricks when using systemd mount units.

### Using fstab

To define how the webdav resource should be mounted into the filesystem, append a fstab entry under the following format:

    /etc/fstab

    https://webdav.example/path /mnt/webdav davfs rw,user,uid=username,noauto 0 0

where username is the owner of the mounted file system. It may be a numeric ID or a user name and only root can mount a uid different from the mounting user.

## Tips and tricks

### Storing credentials

Create a secrets file to store credentials for a WebDAV-service using `~/.davfs2/secrets` for user, and `/etc/davfs2/secrets` for root:

    /etc/davfs2/secrets

    https://webdav.example/path davusername davpassword

Make sure the secrets file contains the correct permissions, for root mounting:

    # chmod 600 /etc/davfs2/secrets
    # chown root:root /etc/davfs2/secrets

And for user mounting:

    $ chmod 600 ~/.davfs2/secrets

## Troubleshooting

### Creating/copying files not possible and/or freezes

If creating/copying files is not possible and/or freezes occur, edit the configuration file to use `use_locks 0` as option. Default for this parameter is `1` which locks files on the server when they are opened for writing.

## See also

- http://ajclarkson.co.uk/blog/auto-mount-webdav-raspberry-pi/

Categories:

- File systems
- WebDAV