Hello! I'm trying to set up qbittorrent and gluetun using docker compose on my home server, using the free account of ProtonVPN.

on some posts I see that ports 8080, 6881 and 6881/UDP are open in gluetun. in the guide I followed instead only port 8080 is exposed. So I exposed port 8080 and it is not working. I launched the torrent of endeavourOS iso image (that my laptop (with the same vpn) downloads in a few minutes with plenty of peers and seeds at about 4Mb/s), and it downloaded at an EXTREME low speed (a few B/s) for a few seconds, and then got stuck at stalled. When it is stalled, the qbittorrent container has no internet access (ping linux.org fails).

So my questions are:

1. Which ports do I need to open on gluetun? if I open 6881 wouldn't my IP be exposed bypassing gluetun?
2. What's wrong with my setup? Why is internet connection so slow when there is, and why does it go away so often?
3. Is this configuration secure? in case of gluetun fail, would my IP be leaked?

here's the two docker-compose.yml files:

version: "3"

services:
    gluetun:
        image: qmcgaw/gluetun
        container_name: gluetun
        cap_add:
            - NET_ADMIN
        environment:
            - VPN_SERVICE_PROVIDER=protonvpn
            - OPENVPN_USER=MYUSERHERE
            - OPENVPN_PASSWORD=MYPASSWORDHERE
            - SERVER_COUNTRIES=Netherlands
            - FREE_ONLY=on
        volumes:
            - ~/docker/gluetun/gluetun:/gluetun
        ports:
            - 8080:8080 # qBittorrent
        restart: unless-stopped

and

version: "3"
services:
  qbittorrent:
    image: linuxserver/qbittorrent:latest
    container_name: qbittorrent
    environment:
      - PUID=1000
      - PGID=1000
      - TZ=Europe/Rome
      - WEBUI_PORT=8080
    volumes:
      - ~/docker/qbittorrent/config:/config
      - ~/docker/qbittorrent/downloads:/downloads
    network_mode: "container:gluetun"
    #ports:
    #  - 8080:8080
    #  - 6881:6881
    #  - 6881:6881/udp
    restart: unless-stopped

and here's some logs:

024-01-22T19:07:15Z INFO Settings summary:
├── VPN settings:
|   ├── VPN provider settings:
|   |   ├── Name: protonvpn
|   |   └── Server selection settings:
|   |       ├── VPN type: openvpn
|   |       ├── Countries: netherlands
|   |       ├── Free only servers: yes
|   |       └── OpenVPN server selection settings:
|   |           └── Protocol: UDP
|   └── OpenVPN settings:
|       ├── OpenVPN version: 2.5
|       ├── User: [set]
|       ├── Password: fL...BK
|       ├── Network interface: tun0
|       ├── Run OpenVPN as: root
|       └── Verbosity level: 1
├── DNS settings:
|   ├── Keep existing nameserver(s): no
|   ├── DNS server address to use: 127.0.0.1
|   └── DNS over TLS settings:
|       ├── Enabled: yes
|       ├── Update period: every 24h0m0s
|       ├── Unbound settings:
|       |   ├── Authoritative servers:
|       |   |   └── cloudflare
|       |   ├── Caching: yes
|       |   ├── IPv6: no
|       |   ├── Verbosity level: 1
|       |   ├── Verbosity details level: 0
|       |   ├── Validation log level: 0
|       |   ├── System user: root
|       |   └── Allowed networks:
|       |       ├── 0.0.0.0/0
|       |       └── ::/0
|       └── DNS filtering settings:
|           ├── Block malicious: yes
|           ├── Block ads: no
|           ├── Block surveillance: no
|           └── Blocked IP networks:
|               ├── 127.0.0.1/8
|               ├── 10.0.0.0/8
|               ├── 172.16.0.0/12
|               ├── 192.168.0.0/16
|               ├── 169.254.0.0/16
|               ├── ::1/128
|               ├── fc00::/7
|               ├── fe80::/10
|               ├── ::ffff:127.0.0.1/104
|               ├── ::ffff:10.0.0.0/104
|               ├── ::ffff:169.254.0.0/112
|               ├── ::ffff:172.16.0.0/108
|               └── ::ffff:192.168.0.0/112
├── Firewall settings:
|   └── Enabled: yes
├── Log settings:
|   └── Log level: INFO
├── Health settings:
|   ├── Server listening address: 127.0.0.1:9999
|   ├── Target address: cloudflare.com:443
|   ├── Duration to wait after success: 5s
|   ├── Read header timeout: 100ms
|   ├── Read timeout: 500ms
|   └── VPN wait durations:
|       ├── Initial duration: 6s
|       └── Additional duration: 5s
├── Shadowsocks server settings:
|   └── Enabled: no
├── HTTP proxy settings:
|   └── Enabled: no
├── Control server settings:
|   ├── Listening address: :8000
|   └── Logging: yes
├── OS Alpine settings:
|   ├── Process UID: 1000
|   └── Process GID: 1000
├── Public IP settings:
|   ├── Fetching: every 12h0m0s
|   └── IP file path: /tmp/gluetun/ip
└── Version settings:
└── Enabled: yes
2024-01-22T19:07:15Z INFO [routing] default route found: interface eth0, gateway 172.29.0.1, assigned IP 172.29.0.2 and family v4
2024-01-22T19:07:15Z INFO [routing] adding route for 0.0.0.0/0
2024-01-22T19:07:15Z INFO [firewall] setting allowed subnets...
2024-01-22T19:07:15Z INFO [routing] default route found: interface eth0, gateway 172.29.0.1, assigned IP 172.29.0.2 and family v4
2024-01-22T19:07:15Z INFO TUN device is not available: open /dev/net/tun: no such file or directory; creating it...
2024-01-22T19:07:15Z INFO [dns] using plaintext DNS at address 1.1.1.1
2024-01-22T19:07:15Z INFO [http server] http server listening on [::]:8000
2024-01-22T19:07:15Z INFO [healthcheck] listening on 127.0.0.1:9999
2024-01-22T19:07:15Z INFO [firewall] allowing VPN connection...
2024-01-22T19:07:15Z INFO [openvpn] OpenVPN 2.5.8 x86_64-alpine-linux-musl [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD] built on Nov  2 2022
2024-01-22T19:07:15Z INFO [openvpn] library versions: OpenSSL 3.1.4 24 Oct 2023, LZO 2.10
2024-01-22T19:07:15Z INFO [openvpn] TCP/UDP: Preserving recently used remote address: [AF_INET]192.40.57.231:1194
2024-01-22T19:07:15Z INFO [openvpn] UDP link local: (not bound)
2024-01-22T19:07:15Z INFO [openvpn] UDP link remote: [AF_INET]192.40.57.231:1194
2024-01-22T19:07:21Z INFO [healthcheck] program has been unhealthy for 6s: restarting VPN (see https://github.com/qdm12/gluetun-wiki/blob/main/faq/healthcheck.md)
2024-01-22T19:07:21Z INFO [vpn] stopping
2024-01-22T19:07:21Z INFO [vpn] starting
2024-01-22T19:07:21Z INFO [firewall] allowing VPN connection...
2024-01-22T19:07:21Z INFO [openvpn] OpenVPN 2.5.8 x86_64-alpine-linux-musl [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD] built on Nov  2 2022
2024-01-22T19:07:21Z INFO [openvpn] library versions: OpenSSL 3.1.4 24 Oct 2023, LZO 2.10
2024-01-22T19:07:21Z INFO [openvpn] TCP/UDP: Preserving recently used remote address: [AF_INET]185.107.56.235:1194
2024-01-22T19:07:21Z INFO [openvpn] UDP link local: (not bound)
2024-01-22T19:07:21Z INFO [openvpn] UDP link remote: [AF_INET]185.107.56.235:1194
2024-01-22T19:07:22Z WARN [openvpn] 'link-mtu' is used inconsistently, local='link-mtu 1633', remote='link-mtu 1634'
2024-01-22T19:07:22Z WARN [openvpn] 'tun-mtu' is used inconsistently, local='tun-mtu 1532', remote='tun-mtu 1500'
2024-01-22T19:07:22Z WARN [openvpn] 'comp-lzo' is present in remote config but missing in local config, remote='comp-lzo'
2024-01-22T19:07:22Z INFO [openvpn] [node-nl-164.protonvpn.net] Peer Connection Initiated with [AF_INET]185.107.56.235:1194
2024-01-22T19:07:23Z INFO [openvpn] setsockopt TCP_NODELAY=1 failed
2024-01-22T19:07:23Z INFO [openvpn] TUN/TAP device tun0 opened
2024-01-22T19:07:23Z INFO [openvpn] /sbin/ip link set dev tun0 up mtu 1500
2024-01-22T19:07:23Z INFO [openvpn] /sbin/ip link set dev tun0 up
2024-01-22T19:07:23Z INFO [openvpn] /sbin/ip addr add dev tun0 10.25.0.5/16
2024-01-22T19:07:23Z INFO [openvpn] UID set to nonrootuser
2024-01-22T19:07:23Z INFO [openvpn] Initialization Sequence Completed
2024-01-22T19:07:23Z INFO [dns] downloading DNS over TLS cryptographic files
2024-01-22T19:07:24Z INFO [healthcheck] healthy!
2024-01-22T19:07:24Z INFO [dns] downloading hostnames and IP block lists
2024-01-22T19:07:32Z INFO [healthcheck] unhealthy: dialing: dial tcp4: lookup cloudflare.com: i/o timeout
2024-01-22T19:07:32Z INFO [dns] init module 0: validator
2024-01-22T19:07:32Z INFO [dns] init module 1: iterator
2024-01-22T19:07:32Z INFO [dns] start of service (unbound 1.17.1).
2024-01-22T19:07:33Z INFO [dns] generate keytag query _ta-4a5c-4f66. NULL IN
2024-01-22T19:07:33Z INFO [healthcheck] healthy!
2024-01-22T19:07:33Z INFO [dns] ready
2024-01-22T19:07:33Z INFO [vpn] You are running on the bleeding edge of latest!
2024-01-22T19:07:33Z INFO [ip getter] Public IP address is 185.107.56.251 (Netherlands, North Holland, Amsterdam)