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How to set up a WebDav share with Nginx

I've just been setting up a WebDav share on a raspberry pi 3 for my local network (long story), and since it was a bit of a pain to set up (and I had to combine a bunch of different tutorials out there to make mine work), I thought I'd share how I did it here.

I'll assume you have a raspberry pi all set up and up-to-date in headless mode, with a ufw for your firewall (if you need help with this, post in the comments below or check out the Raspberry Pi Stack Exchange). To start with, we need to install the nginx-full package:

sudo apt update
sudo apt install  nginx-full

Note that we need the nginx-full package here, because the nginx-extras or just simply nginx packages don't include the required additional webdav support modules. Next, we need to configure Nginx. Nginx's configuration files live at /etc/nginx/nginx.conf, and in /etc/nginx/conf.d. I did something like this for my nginx.conf:

user www-data;
worker_processes 4;
pid /run/nginx.pid;

events {
    worker_connections 768;
    # multi_accept on;
}

http {

    ##
    # Basic Settings
    ##

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    # server_tokens off;

    # server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    ##
    # SSL Settings
    ##

    ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
    ssl_prefer_server_ciphers on;

    ##
    # Logging Settings
    ##

    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    ##
    # Gzip Settings
    ##

    gzip on;

    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_buffers 16 8k;
    gzip_http_version 1.1;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

    ##
    # Virtual Host Configs
    ##

    include /etc/nginx/conf.d/*.conf;
    include /etc/nginx/sites-enabled/*;
}

Not many changes here. Then, I created a file called 0-webdav.conf in the conf.d directory, and this is what I put in it:

server {
    listen 80;
    listen [::]:80;

    server_name plans.helenshydrogen.be;

    auth_basic              realm_name;
    auth_basic_user_file    /etc/nginx/.passwords.list;

    dav_methods     PUT DELETE MKCOL COPY MOVE;
    dav_ext_methods PROPFIND OPTIONS;
    dav_access      user:rw group:rw all:r

    client_body_temp_path   /tmp/nginx/client-bodies;
    client_max_body_size    0;
    create_full_put_path    on;

    root /mnt/hydroplans;
}

Now this is where the magic happens. The dav_access directive tells nginx to allow everyone to read, but only logged in users to write to the share. This isn't actually particularly relevant, because of the auth_basic and auth_basic_user_file directives, which tell nginx to require people to login to the share before they are allowed to access it.

It's also important to note that I found that Windows (10, at least), didn't like the basic authentication - even though Ubuntu's Nautilus accepted it just fine - so I had to comment that bit out :-(

If you do still want authentication (hey! May you'll have better luck than I :P), then you'll need to set up the passwords file. Here's how you create it:


echo -n 'helen:' | sudo tee /etc/nginx/.passwords.list
openssl passwd -apr1 | sudo tee -a /etc/nginx/.passwords.list 
Password:

The above creates a user called helen, and asks you to type a password. If you're adding another user to the file, simply change the first tee to be tee -a to avoid overwriting the first one.

With that all configured, it's time to test the configuration file, and, if we're lucky, restart nginx!


sudo nginx -t
sudo systemctl restart nginx

That's all you should need to do to set up a simple WebDav share. Remember that this is a starting point, and not an ending point - there are a few big holes in the above that you'll need to address, depending on your use case (for example, I haven't included the setup of https / encryption - try letsencrypt for that).

Here are the connection details for the above for a few different clients:

Did this work for you? Have any problems? Got instructions for a WebDav client not listed here? Let me know in the comments!

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