Nextcloud is a handy self hosted web-based application that can be used to store files, contacts and calendars.
It provides the desktop and mobile client.
In addition, it supports Web Distributed Authoring and Versioning protocol, so lets mount a WebDAV share.

Nextcloud

Private Nextcloud instance

Install required software

Install davfs2 package to mount WebDAV resource as regular file system.

$ sudo apt-get install davfs2

Mount WebDAV share using command-line

Create the mountpoint directory.

$ sudo mkdir /mnt/dav

Use mount command to mount the WebDAV share.

$ sudo mount -t davfs -o noexec https://nextcloud.example.com/remote.php/webdav/ /mnt/dav/

Please enter the username to authenticate with server
https://nextcloud.example.com/remote.php/webdav/ or hit enter for none.
  Username: milo
Please enter the password to authenticate user milosz with server
https://nextcloud.example.com/remote.php/webdav/ or hit enter for none.
  Password:  
/sbin/mount.davfs: warning: the server does not support lock

Use umount command to unmount the WebDAV share.

$ sudo umount /mnt/dav
/sbin/umount.davfs: waiting while mount.davfs (pid 1475) synchronizes the cache .. OK

Mount WebDAV share using fstab

Create fstab entry to allow the specified user to mount the filesystem.

$ cat << EOF | sudo tee -a /etc/fstab

# personal webdav
https://nextcloud.example.com/remote.php/webdav/ /mnt/dav davfs _netdev,noauto,user,uid=milosz,gid=milosz 0 0
EOF

Store username and password for the remote WebDAV share.

$ cat << EOF | sudo tee -a /etc/davfs2/secrets

# personal webdav, nextcloud application password
/mnt/dav milosz mypassword
# older versions used URL, it is equivalent for compatibility reasons
#https://nextcloud.example.com/remote.php/webdav/ milosz mypassword
EOF

You can mount the above-mentioned WebDAV share using sudo utility.

$ sudo mount /mnt/dav

Additional notes

If you try to mount it as regular user and encounter the following error, then you need to set SUID bit on the mount.davfs binary.

$ mount /mnt/dav
/sbin/mount.davfs: program is not setuid root

Execute dpkg-reconfigure to reconfigure davfs2 package, set the SUID bit and allow unprivileged users to mount WebDAV resources.

$ sudo dpkg-reconfigure davfs2

Reconfigure davfs2 package

Reconfigure davfs2 package

In addition, user must be a member of the davfs2 group.

$ mount /mnt/dav
/sbin/mount.davfs: user milosz must be member of group davfs2

Use the following command to add specified user to required group.

$ sudo usermod -a -G davfs2 milosz
ko-fi